add spicy dependency

InvoluteGearRack: properties_from_tool default = False
add package.xml
2022-06-11 18:25:41 +02:00 · 2022-05-03 14:48:05 +02:00 · 2022-02-24 08:39:28 +01:00 · 2022-01-04 20:08:35 +01:00 · 2021-10-23 01:43:24 +02:00 · 2021-10-23 01:43:24 +02:00
65 changed files with 5533 additions and 14867 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -53,9 +53,12 @@ docs/_build/
 # PyBuilder
 target/

-#costum
+#custom
 *.kdev4
 *.lyx~
 .ipynb_checkpoints/
 results/
 *.vtk
+
+# VIM
+*.swp
--- a/839
+++ b/839
@@ -1,281 +1,622 @@
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+                    GNU GENERAL PUBLIC LICENSE
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 Everyone is permitted to copy and distribute verbatim copies
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-                            NO WARRANTY
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-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
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-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
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+  15. Disclaimer of Warranty.

-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
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+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
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+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
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+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.

                     END OF TERMS AND CONDITIONS

@@ -287,15 +628,15 @@ free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
 to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
+state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.

-    {description}
-    Copyright (C) {year}  {fullname}
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>

-    This program is free software; you can redistribute it and/or modify
+    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
+    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
@@ -303,37 +644,31 @@ the "copyright" line and a pointer to where the full notice is found.
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.

 Also add information on how to contact you by electronic and paper mail.

-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:

-    Gnomovision version 69, Copyright (C) year name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

 The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".

-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.

-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  {signature of Ty Coon}, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+recursive-include freecad/gears/icons *
--- a/README.md
+++ b/README.md
@@ -1,14 +1,97 @@
-a gearmodule for freecad
+## A Gear module for FreeCAD
+[![Liberapay](http://img.shields.io/liberapay/patrons/looooo.svg?logo=liberapay)](https://liberapay.com/looooo/donate) [![Total alerts](https://img.shields.io/lgtm/alerts/g/looooo/freecad.gears.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/looooo/freecad.gears/alerts/) [![Language grade: Python](https://img.shields.io/lgtm/grade/python/g/looooo/freecad.gears.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/looooo/freecad.gears/context:python)  
+
+## Requirements
+FreeCAD > v0.16  
+__python > 3 (for python2 use branch py2)__
+
+
+## Supported gear-types
+
+### Cylindric Involute
+* Shifting
+* Helical
+* Double Helical
+* Undercut  
+
+![involute-gear](examples/involute-double-helical-gear.png)
+
+
+### Involute Rack
+![involute-rack](examples/involute-rack.png)
+
+### Cylindric Cycloid
+* Helical
+* Double Helical
+
+![cycloid-gear](examples/cycloid-gear.png)
+
+### Spherical Involute Bevel-Gear
+* Spiral  
+
+![bevel-gear](examples/bevel-gear.png)
+
+### Crown-Gear
+![crown-gear](examples/crown-gear.png)
+
+### Worm-Gear
+![worm-gear](examples/worm-gear.png)
+
+### Timing-Gear
+![timing-gear](examples/timing-gear.png)
+
+### Lantern-Gear
+![lantern-gear](examples/lantern-gear.png)
+
 ---------------------------

-* install:
-  * git clone https://github.com/looooo/FCGear.git
-  * link or copy the FCgear/gear into /freecad/Mod (sudo ln -s (path_to_FCGear)/gear (path_to_freecad)/Mod
+## Installation

+### Addon Manager  
+Starting from v0.17 it's possible to use the built-in FreeCAD [Addon Manager](https://github.com/FreeCAD/FreeCAD-addons#1-builtin-addon-manager)
+located in the `Tools` > `Addon Manager` dropdown menu.

-* create a gear:
-  * open freecad
-  * go to the gear workbench
-  * create new document
-  * create a gear (click on gear symbol)
-  * change parameters 
+### pip
+
+`pip install https://github.com/looooo/FCGear/archive/master.tar.gz`
+
+**Important note:** Most systems have multiple versions of python installed. Make sure the `pip` you're using is used by FreeCAD as well.
+
+## Usage
+
+### Create a gear manually
+* Open freecad
+* Switch to the gear workbench
+* Create new document
+* Create a gear (click on a gear symbol in the toolbar)
+* Change the gear parameters
+
+## Scripted gears
+Use the power of python to automate your gear modeling: 
+
+```python
+import FreeCAD as App
+import freecad.gears.commands
+gear = freecad.gears.commands.CreateInvoluteGear.create()
+gear.teeth = 20
+gear.beta = 20
+gear.height = 10
+gear.double_helix = True
+App.ActiveDocument.recompute()
+Gui.SendMsgToActiveView("ViewFit")
+```
+
+## References
+* Elements of Metric Gear Technology ([PDF](http://qtcgears.com/tools/catalogs/PDF_Q420/Tech.pdf))
+
+### FreeCAD Forum threads
+These are forum threads where FreeCAD Gears has been discussed. If you want to give Feedback
+or report a bug please use the below threads. Please make sure that the report hasn't been reported already
+by browsing this repositories [issue queue](https://github.com/looooo/freecad.gears/issues).   
+* "CONTINUED: involute gear generator preview !" ([thread](https://forum.freecadweb.org/viewtopic.php?f=10&t=4829))  
+* "Bevel gear - module/script/tutorial" ([thread](https://forum.freecadweb.org/viewtopic.php?f=3&t=12878))  
+* "Gears in FreeCAD: FC Gear" ([thread](https://forum.freecadweb.org/viewtopic.php?f=24&t=27381))  
+* "FC Gears: Feedback thread" ([thread](https://forum.freecadweb.org/viewtopic.php?f=8&t=27626))  
+
+# License
+GNU General Public License v3.0
--- a/docs/crown-gear.pdf
+++ b/docs/crown-gear.pdf
--- a/docs/latern-gear.pdf
+++ b/docs/latern-gear.pdf
--- a/docs/timing-gear.pdf
+++ b/docs/timing-gear.pdf
--- a/examples/animated_spiral.gif
+++ b/examples/animated_spiral.gif
--- a/examples/animation.py
+++ b/examples/animation.py
@@ -0,0 +1,29 @@
+# script for bevel-gear animation
+
+from PySide import QtCore
+import FreeCAD as app
+import FreeCADGui as gui
+import numpy as np
+
+doc = app.ActiveDocument
+g2 = doc.Common
+g1 = doc.Common001
+
+timer = QtCore.QTimer()
+
+def make_pics():
+    n = 30
+    for i in range(n):
+        phi = np.pi * 2 / 30 / n
+        g1.Placement.Rotation.Angle += phi * 2
+        g2.Placement.Rotation.Angle -= phi
+        gui.activeDocument().activeView().saveImage('/home/lo/Schreibtisch/animated_gear/gear_{}.png'.format(i) ,300,300,'Current')
+
+def update(*args):
+    print("time")
+    delta_phi = 0.005
+    g1.Placement.Rotation.Angle += delta_phi * 2
+    g2.Placement.Rotation.Angle -= delta_phi
+
+timer.timeout.connect(update)
+timer.start()
--- a/examples/bevel-gear.png
+++ b/examples/bevel-gear.png
--- a/examples/bevel_gear_animation.fcstd
+++ b/examples/bevel_gear_animation.fcstd
--- a/examples/bevel_gear_animation.fcstd1
+++ b/examples/bevel_gear_animation.fcstd1
--- a/examples/bevel_gear_example.fcstd
+++ b/examples/bevel_gear_example.fcstd
--- a/examples/bevel_gear_example.fcstd1
+++ b/examples/bevel_gear_example.fcstd1
--- a/examples/bicycle_chainring.FCStd
+++ b/examples/bicycle_chainring.FCStd
--- a/examples/bicycle_chainring.FCStd1
+++ b/examples/bicycle_chainring.FCStd1
--- a/examples/crown-gear.png
+++ b/examples/crown-gear.png
--- a/examples/cycloid-gear.png
+++ b/examples/cycloid-gear.png
--- a/examples/gear_from_picture.fcstd
+++ b/examples/gear_from_picture.fcstd
--- a/examples/gear_from_picture.fcstd1
+++ b/examples/gear_from_picture.fcstd1
--- a/examples/involute-double-helical-gear.png
+++ b/examples/involute-double-helical-gear.png
--- a/examples/involute-rack.png
+++ b/examples/involute-rack.png
--- a/examples/lantern-gear.png
+++ b/examples/lantern-gear.png
--- a/examples/spiral.png
+++ b/examples/spiral.png
--- a/examples/timing-gear.png
+++ b/examples/timing-gear.png
--- a/examples/timing_gear_example.FCStd
+++ b/examples/timing_gear_example.FCStd
--- a/examples/worm-gear.png
+++ b/examples/worm-gear.png
--- a/freecad/gears/init.py
+++ b/freecad/gears/init.py
@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# ***************************************************************************
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+import pygears
+__version__ = pygears.__version__
--- a/freecad/gears/commands.py
+++ b/freecad/gears/commands.py
@@ -0,0 +1,150 @@
+# -*- coding: utf-8 -*-
+# ***************************************************************************
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+import os
+import FreeCAD
+import FreeCADGui as Gui
+from .features import ViewProviderGear, InvoluteGear, InvoluteGearRack
+from .features import CycloidGear, BevelGear, CrownGear, WormGear, TimingGear, LanternGear, HypoCycloidGear
+
+
+class BaseCommand(object):
+    NAME = ""
+    GEAR_FUNCTION = None
+    ICONDIR = os.path.join(os.path.dirname(__file__), "icons")
+
+    def __init__(self):
+        pass
+
+    def IsActive(self):
+        if FreeCAD.ActiveDocument is None:
+            return False
+        else:
+            return True
+
+    def Activated(self):
+        doc = FreeCAD.ActiveDocument
+        Gui.doCommandGui("import freecad.gears.commands")
+        doc.openTransaction(self.ToolTip)
+        Gui.doCommandGui("freecad.gears.commands.{}.create()".format(
+            self.__class__.__name__))
+        doc.commitTransaction()
+        doc.recompute()
+        Gui.SendMsgToActiveView("ViewFit")
+
+    @classmethod
+    def create(cls):
+        if FreeCAD.GuiUp:
+            # borrowed from threaded profiles
+            # puts the gear into an active container
+            body = Gui.ActiveDocument.ActiveView.getActiveObject("pdbody")
+            part = Gui.ActiveDocument.ActiveView.getActiveObject("part")
+
+            if body:
+                obj = FreeCAD.ActiveDocument.addObject("PartDesign::FeaturePython", cls.NAME)
+            else:
+                obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", cls.NAME)
+            ViewProviderGear(obj.ViewObject)
+            cls.GEAR_FUNCTION(obj)
+
+            if body:
+                body.addObject(obj)
+            elif part:
+                part.Group += [obj]
+        else:
+            obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", cls.NAME)
+            cls.GEAR_FUNCTION(obj)
+        return obj
+
+    def GetResources(self):
+        return {'Pixmap': self.Pixmap,
+                'MenuText': self.MenuText,
+                'ToolTip': self.ToolTip}
+
+
+class CreateInvoluteGear(BaseCommand):
+    NAME = "involutegear"
+    GEAR_FUNCTION = InvoluteGear
+    Pixmap = os.path.join(BaseCommand.ICONDIR, 'involutegear.svg')
+    MenuText = 'Involute gear'
+    ToolTip = 'Create an Involute gear'
+
+
+class CreateInvoluteRack(BaseCommand):
+    NAME = "involuterack"
+    GEAR_FUNCTION = InvoluteGearRack
+    Pixmap = os.path.join(BaseCommand.ICONDIR, 'involuterack.svg')
+    MenuText = 'Involute rack'
+    ToolTip = 'Create an Involute rack'
+
+
+class CreateCrownGear(BaseCommand):
+    NAME = "crowngear"
+    GEAR_FUNCTION = CrownGear
+    Pixmap = os.path.join(BaseCommand.ICONDIR, 'crowngear.svg')
+    MenuText = 'Crown gear'
+    ToolTip = 'Create a Crown gear'
+
+
+class CreateCycloidGear(BaseCommand):
+    NAME = "cycloidgear"
+    GEAR_FUNCTION = CycloidGear
+    Pixmap = os.path.join(BaseCommand.ICONDIR, 'cycloidgear.svg')
+    MenuText = 'Cycloid gear'
+    ToolTip = 'Create a Cycloid gear'
+
+
+class CreateBevelGear(BaseCommand):
+    NAME = "bevelgear"
+    GEAR_FUNCTION = BevelGear
+    Pixmap = os.path.join(BaseCommand.ICONDIR, 'bevelgear.svg')
+    MenuText = 'Bevel gear'
+    ToolTip = 'Create a Bevel gear'
+
+class CreateHypoCycloidGear(BaseCommand):
+    NAME = "hypocycloidgear"
+    GEAR_FUNCTION = HypoCycloidGear
+    Pixmap = os.path.join(BaseCommand.ICONDIR, 'hypocycloidgear.svg')
+    MenuText = 'HypoCycloid gear'
+    ToolTip = 'Create a HypoCycloid gear with its pins'
+
+
+class CreateWormGear(BaseCommand):
+    NAME = "wormgear"
+    GEAR_FUNCTION = WormGear
+    Pixmap = os.path.join(BaseCommand.ICONDIR, 'wormgear.svg')
+    MenuText = 'Worm gear'
+    ToolTip = 'Create a Worm gear'
+
+
+class CreateTimingGear(BaseCommand):
+    NAME = "timinggear"
+    GEAR_FUNCTION = TimingGear
+    Pixmap = os.path.join(BaseCommand.ICONDIR, 'timinggear.svg')
+    MenuText = 'Timing gear'
+    ToolTip = 'Create a Timing gear'
+
+class CreateLanternGear(BaseCommand):
+    NAME = "lanterngear"
+    GEAR_FUNCTION = LanternGear
+    Pixmap = os.path.join(BaseCommand.ICONDIR, 'lanterngear.svg')
+    MenuText = 'Lantern gear'
+    ToolTip = 'Create a Lantern gear'
--- a/freecad/gears/features.py
+++ b/freecad/gears/features.py
--- a/freecad/gears/icons/bevelgear.svg
+++ b/freecad/gears/icons/bevelgear.svg
--- a/freecad/gears/icons/crowngear.svg
+++ b/freecad/gears/icons/crowngear.svg
--- a/gear/Resources/icons/cycloidegear.svg
+++ b/gear/Resources/icons/cycloidegear.svg
@@ -15,7 +15,7 @@
   id="svg3799"
   version="1.1"
   inkscape:version="0.48.4 r9939"
-   sodipodi:docname="cycloidegear.svg">
+   sodipodi:docname="cycloidgear.svg">
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     id="defs3801">
    <inkscape:path-effect
--- a/gear/Resources/icons/gearworkbench.svg
+++ b/gear/Resources/icons/gearworkbench.svg
--- a/freecad/gears/icons/hypocycloidgear.svg
+++ b/freecad/gears/icons/hypocycloidgear.svg
--- a/gear/Resources/icons/involutegear.svg
+++ b/gear/Resources/icons/involutegear.svg
@@ -15,7 +15,7 @@
   id="svg3799"
   version="1.1"
   inkscape:version="0.48.4 r9939"
-   sodipodi:docname="cycloidegear.svg">
+   sodipodi:docname="cycloidgear.svg">
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--- a/freecad/gears/icons/involuterack.svg
+++ b/freecad/gears/icons/involuterack.svg
--- a/freecad/gears/icons/lanterngear.svg
+++ b/freecad/gears/icons/lanterngear.svg
--- a/freecad/gears/icons/timinggear.svg
+++ b/freecad/gears/icons/timinggear.svg
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+         sodipodi:role="line">!</tspan></text>
+  </g>
+</svg>
--- a/gear/Resources/icons/involuterack.svg
+++ b/gear/Resources/icons/involuterack.svg
@@ -10,8 +10,8 @@
   xmlns:xlink="http://www.w3.org/1999/xlink"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   sodipodi:docname="involuterack.svg"
-   inkscape:version="0.48.3.1 r9886"
+   sodipodi:docname="wormgear.svg"
+   inkscape:version="0.92.4 (f8dce91, 2019-08-02)"
   version="1.1"
   id="svg3799"
   height="64px"
@@ -24,48 +24,61 @@
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     inkscape:pageshadow="2"
     inkscape:zoom="3.8890873"
-     inkscape:cx="55.243633"
-     inkscape:cy="47.884581"
-     inkscape:current-layer="svg3799"
+     inkscape:cx="21.845562"
+     inkscape:cy="-8.3240444"
+     inkscape:current-layer="g145"
     showgrid="true"
     inkscape:document-units="px"
     inkscape:grid-bbox="true"
     inkscape:snap-center="false"
     showguides="true"
     inkscape:guide-bbox="true"
-     inkscape:window-width="1366"
-     inkscape:window-height="715"
-     inkscape:window-x="0"
-     inkscape:window-y="0"
+     inkscape:window-width="1837"
+     inkscape:window-height="1018"
+     inkscape:window-x="83"
+     inkscape:window-y="34"
     inkscape:window-maximized="1"
     inkscape:object-paths="true"
     inkscape:object-nodes="true"
     inkscape:snap-intersection-paths="true"
-     inkscape:snap-nodes="false">
+     inkscape:snap-nodes="false"
+     inkscape:snap-others="true"
+     inkscape:lockguides="false">
    <sodipodi:guide
       id="guide3783"
       position="32,32"
-       orientation="1,0" />
+       orientation="1,0"
+       inkscape:locked="false" />
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       id="guide3785"
       position="32,32"
-       orientation="0,1" />
+       orientation="0,1"
+       inkscape:locked="false" />
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       id="guide9301"
       position="0,0"
-       orientation="1,0" />
+       orientation="1,0"
+       inkscape:locked="false" />
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       id="guide9303"
       position="0,0"
-       orientation="0,1" />
+       orientation="0,1"
+       inkscape:locked="false" />
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       id="guide9305"
       position="0,64"
-       orientation="0,1" />
+       orientation="0,1"
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       id="guide9307"
       position="64,64"
-       orientation="1,0" />
+       orientation="1,0"
+       inkscape:locked="false" />
+    <sodipodi:guide
+       position="51.168818,70.453548"
+       orientation="1,0"
+       id="guide4358"
+       inkscape:locked="false" />
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@@ -343,54 +356,35 @@
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+  </g>
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--- a/freecad/gears/init_gui.py
+++ b/freecad/gears/init_gui.py
@@ -0,0 +1,81 @@
+# -*- coding: utf-8 -*-
+# ***************************************************************************
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+import os
+import FreeCADGui as Gui
+import FreeCAD as App
+__dirname__ = os.path.dirname(__file__)
+
+try:
+    from FreeCADGui import Workbench
+except ImportError as e:
+    App.Console.PrintWarning(
+        "you are using the GearWorkbench with an old version of FreeCAD (<0.16)")
+    App.Console.PrintWarning(
+        "the class Workbench is loaded, although not imported: magic")
+
+
+class GearWorkbench(Workbench):
+    """glider workbench"""
+    MenuText = "Gear"
+    ToolTip = "Gear Workbench"
+    Icon = os.path.join(__dirname__,  'icons', 'gearworkbench.svg')
+    commands = [
+        "CreateInvoluteGear",
+        "CreateInvoluteRack",
+        "CreateCycloidGear",
+        "CreateBevelGear",
+        "CreateCrownGear",
+        "CreateWormGear",
+        "CreateTimingGear",
+        "CreateLanternGear",
+        "CreateHypoCycloidGear"]
+
+    def GetClassName(self):
+        return "Gui::PythonWorkbench"
+
+    def Initialize(self):
+        from .commands import CreateCycloidGear, CreateInvoluteGear
+        from .commands import CreateBevelGear, CreateInvoluteRack, CreateCrownGear
+        from .commands import CreateWormGear, CreateTimingGear, CreateLanternGear
+        from .commands import CreateHypoCycloidGear
+
+        self.appendToolbar("Gear", self.commands)
+        self.appendMenu("Gear", self.commands)
+        # Gui.addIconPath(App.getHomePath()+"Mod/gear/icons/")
+        Gui.addCommand('CreateInvoluteGear', CreateInvoluteGear())
+        Gui.addCommand('CreateCycloidGear', CreateCycloidGear())
+        Gui.addCommand('CreateBevelGear', CreateBevelGear())
+        Gui.addCommand('CreateInvoluteRack', CreateInvoluteRack())
+        Gui.addCommand('CreateCrownGear', CreateCrownGear())
+        Gui.addCommand('CreateWormGear', CreateWormGear())
+        Gui.addCommand('CreateTimingGear', CreateTimingGear())
+        Gui.addCommand('CreateLanternGear', CreateLanternGear())
+        Gui.addCommand('CreateHypoCycloidGear', CreateHypoCycloidGear())
+
+    def Activated(self):
+        pass
+
+    def Deactivated(self):
+        pass
+
+
+Gui.addWorkbench(GearWorkbench())
--- a/gear/InitGui.py
+++ b/gear/InitGui.py
@@ -1,54 +0,0 @@
-#***************************************************************************
-#*                                                                         *
-#*   This program is free software; you can redistribute it and/or modify  *
-#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
-#*   as published by the Free Software Foundation; either version 2 of     *
-#*   the License, or (at your option) any later version.                   *
-#*   for detail see the LICENCE text file.                                 *
-#*                                                                         *
-#*   This program is distributed in the hope that it will be useful,       *
-#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
-#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
-#*   GNU Library General Public License for more details.                  *
-#*                                                                         *
-#*   You should have received a copy of the GNU Library General Public     *
-#*   License along with this program; if not, write to the Free Software   *
-#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
-#*   USA                                                                   *
-#*                                                                         *
-#***************************************************************************
-
-import FreeCADGui as Gui
-import FreeCAD
-import gear_rc
-
-
-class gearWorkbench(Workbench):
-    """glider workbench"""
-    MenuText = "gear"
-    ToolTip = "gear workbench"
-    Icon = "gearworkbench.svg"
-
-    def GetClassName(self):
-        return "Gui::PythonWorkbench"
-
-    def Initialize(self):
-
-        from gearfunc import CreateCycloideGear, CreateInvoluteGear, CreateBevelGear, CreateInvoluteRack
-
-        self.appendToolbar("Gear", ["CreateInvoluteGear", "CreateInvoluteRack", "CreateCycloideGear", "CreateBevelGear"])
-        self.appendMenu("Gear", ["CreateInvoluteGear", "CreateInvoluteRack", "CreateCycloideGear","CreateBevelGear"])
-        Gui.addIconPath(FreeCAD.getHomePath()+"Mod/gear/icons/")
-        Gui.addCommand('CreateInvoluteGear', CreateInvoluteGear())
-        Gui.addCommand('CreateCycloideGear', CreateCycloideGear())
-        Gui.addCommand('CreateBevelGear', CreateBevelGear())
-        Gui.addCommand('CreateInvoluteRack', CreateInvoluteRack())
-
-    def Activated(self):
-        pass
-
-
-    def Deactivated(self):
-        pass
-
-Gui.addWorkbench(gearWorkbench())
--- a/gear/Resources/gear.qrc
+++ b/gear/Resources/gear.qrc
@@ -1,9 +0,0 @@
-<RCC>
-    <qresource> 
-        <file>icons/gearworkbench.svg</file>
-        <file>icons/involutegear.svg</file>
-        <file>icons/cycloidegear.svg</file>
-        <file>icons/involuterack.svg</file>
-	<file>icons/bevelgear.svg</file>
-    </qresource>
-</RCC> 
--- a/gear/Resources/gear.qrc~
+++ b/gear/Resources/gear.qrc~
@@ -1,7 +0,0 @@
-<RCC>
-    <qresource> 
-        <file>icons/gearworkbench.svg</file>
-        <file>icons/involutegear.svg</file>
-        <file>icons/cycloidegear.svg</file>
-    </qresource>
-</RCC> 
--- a/gear/Resources/icons/bevelgear.svg
+++ b/gear/Resources/icons/bevelgear.svg
--- a/gear/init.py
+++ b/gear/init.py
@@ -1,20 +0,0 @@
-#!/usr/lib/python
-
-from gearfunc._involute_tooth import involute_rack, involute_tooth
-from gearfunc._cycloide_tooth import cycloide_tooth
-from gearfunc._bevel_tooth import bevel_tooth
-from gearfunc import CreateInvoluteRack, CreateCycloideGear, CreateInvoluteGear, CreateBevelGear
-
-from tests import bspline_surf
-
-
-__All__ = [
-    "CreateInvoluteRack",
-    "CreateCycloideGear",
-    "CreateInvoluteGear",
-    "CreateBevelGear",
-    "involute_rack",
-    "involute_tooth",
-    "bevel_tooth"
-]
-
--- a/gear/gear_rc.py
+++ b/gear/gear_rc.py
--- a/gear/gearfunc/_Classes.py
+++ b/gear/gearfunc/_Classes.py
@@ -1,445 +0,0 @@
-# -*- coding: utf-8 -*-
-#***************************************************************************
-#*                                                                         *
-#*   This program is free software; you can redistribute it and/or modify  *
-#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
-#*   as published by the Free Software Foundation; either version 2 of     *
-#*   the License, or (at your option) any later version.                   *
-#*   for detail see the LICENCE text file.                                 *
-#*                                                                         *
-#*   This program is distributed in the hope that it will be useful,       *
-#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
-#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
-#*   GNU Library General Public License for more details.                  *
-#*                                                                         *
-#*   You should have received a copy of the GNU Library General Public     *
-#*   License along with this program; if not, write to the Free Software   *
-#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
-#*   USA                                                                   *
-#*                                                                         *
-#***************************************************************************
-
-from __future__ import division
-import FreeCAD as App
-from _involute_tooth import involute_tooth, involute_rack
-from _cycloide_tooth import cycloide_tooth
-from _bevel_tooth import bevel_tooth
-from Part import BSplineCurve, Shape, Wire, Face, makePolygon, \
-    BRepOffsetAPI, Shell, makeLoft, Solid, Line, BSplineSurface, Compound,\
-     show, makePolygon, makeLoft, makeHelix
-import Part
-from _functions import rotation3D
-from numpy import pi, cos, sin, tan
-
-import numpy
-
-
-def fcvec(x):
-    if len(x) == 2:
-        return(App.Vector(x[0], x[1], 0))
-    else:
-        return(App.Vector(x[0], x[1], x[2]))
-
-
-class involute_gear():
-
-    """FreeCAD gear"""
-
-    def __init__(self, obj):
-        self.involute_tooth = involute_tooth()
-        obj.addProperty(
-            "App::PropertyBool", "simple", "gear_parameter", "simple")
-        obj.addProperty("App::PropertyInteger",
-                        "teeth", "gear_parameter", "number of teeth")
-        obj.addProperty(
-            "App::PropertyLength", "module", "gear_parameter", "module")
-        obj.addProperty(
-            "App::PropertyBool", "undercut", "gear_parameter", "undercut")
-        obj.addProperty(
-            "App::PropertyFloat", "shift", "gear_parameter", "shift")
-        obj.addProperty(
-            "App::PropertyLength", "height", "gear_parameter", "height")
-        obj.addProperty(
-            "App::PropertyAngle", "alpha", "involute_parameter", "alpha")
-        obj.addProperty(
-            "App::PropertyFloat", "clearence", "gear_parameter", "clearence")
-        obj.addProperty("App::PropertyInteger", "numpoints",
-                        "gear_parameter", "number of points for spline")
-        obj.addProperty(
-            "App::PropertyAngle", "beta", "gear_parameter", "beta ")
-        obj.addProperty(
-            "App::PropertyLength", "backlash", "gear_parameter", "backlash in mm")
-        obj.addProperty("App::PropertyPythonObject", "gear", "test", "test")
-        obj.gear = self.involute_tooth
-        obj.simple = False
-        obj.undercut = False
-        obj.teeth = 15
-        obj.module = '1. mm'
-        obj.shift = 0.
-        obj.alpha = '20. deg'
-        obj.beta = '0. deg'
-        obj.height = '5. mm'
-        obj.clearence = 0.25
-        obj.numpoints = 6
-        obj.backlash = '0.00 mm'
-        self.obj = obj
-        obj.Proxy = self
-
-    def execute(self, fp):
-        fp.gear.m_n = fp.module.Value
-        fp.gear.z = fp.teeth
-        fp.gear.undercut = fp.undercut
-        fp.gear.shift = fp.shift
-        fp.gear.alpha = fp.alpha.Value * pi / 180.
-        fp.gear.beta = fp.beta.Value * pi / 180
-        fp.gear.clearence = fp.clearence
-        fp.gear.backlash = fp.backlash.Value
-        fp.gear._update()
-        pts = fp.gear.points(num=fp.numpoints)
-        if not fp.simple:
-            wi = []
-            for i in pts:
-                out = BSplineCurve()
-                out.interpolate(map(fcvec, i))
-                wi.append(out)
-            s = Wire(Shape(wi).Edges)
-            wi = []
-            for i in range(fp.gear.z):
-                rot = App.Matrix()
-                rot.rotateZ(-i * fp.gear.phipart)
-                tooth_rot = s.transformGeometry(rot)
-                if i != 0:
-                    pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
-                    pt_1 = tooth_rot.Edges[0].Vertexes[-1].Point
-                    wi.append(Wire([Line(pt_0, pt_1).toShape()]))
-                wi.append(tooth_rot)
-            pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
-            pt_1 = wi[0].Edges[0].Vertexes[-1].Point
-            wi.append(Wire([Line(pt_0, pt_1).toShape()]))
-
-            wi = Wire(wi)
-            fp.Shape = wi
-            if fp.beta.Value == 0:
-                sh = Face(wi)
-                fp.Shape = sh.extrude(App.Vector(0, 0, fp.height.Value))
-            else:
-                fp.Shape = helicalextrusion(
-                    wi, fp.height.Value, fp.height.Value * tan(fp.gear.beta) * 2 / fp.gear.d)
-        else:
-            rw = fp.gear.dw / 2
-            circle = Part.Circle(App.Vector(0, 0, 0), App.Vector(0, 0, 1), rw)
-            wire = Part.Wire(circle.toShape())
-            face = Part.Face(wire)
-            fp.Shape = face.extrude(App.Vector(0, 0, fp.height.Value))
-
-    def __getstate__(self):
-        return None
-
-    def __setstate__(self, state):
-        return None
-
-
-class involute_gear_rack():
-
-    """FreeCAD gear rack"""
-
-    def __init__(self, obj):
-        self.involute_rack = involute_rack()
-        obj.addProperty("App::PropertyInteger",
-                        "teeth", "gear_parameter", "number of teeth")
-        obj.addProperty(
-            "App::PropertyLength", "module", "gear_parameter", "module")
-        obj.addProperty(
-            "App::PropertyLength", "height", "gear_parameter", "height")
-        obj.addProperty(
-            "App::PropertyLength", "thickness", "gear_parameter", "thickness")
-        obj.addProperty(
-            "App::PropertyAngle", "alpha", "involute_parameter", "alpha")
-        obj.addProperty("App::PropertyPythonObject", "rack", "test", "test")
-        obj.rack = self.involute_rack
-        obj.teeth = 15
-        obj.module = '1. mm'
-        obj.alpha = '20. deg'
-        obj.height = '5. mm'
-        obj.thickness = '5 mm'
-        self.obj = obj
-        obj.Proxy = self
-
-    def execute(self, fp):
-        fp.rack.m = fp.module.Value
-        fp.rack.z = fp.teeth
-        fp.rack.alpha = fp.alpha.Value * pi / 180.
-        fp.rack.thickness = fp.thickness.Value
-        fp.rack._update()
-        pts = fp.rack.points()
-        pol = Wire(makePolygon(map(fcvec, pts)))
-        fp.Shape = Face(Wire(pol)).extrude(fcvec([0., 0., fp.height]))
-
-    def __getstate__(self):
-        return None
-
-    def __setstate__(self, state):
-        return None
-
-
-class cycloide_gear():
-
-    """FreeCAD gear"""
-
-    def __init__(self, obj):
-        self.cycloide_tooth = cycloide_tooth()
-        obj.addProperty("App::PropertyInteger",
-                        "teeth", "gear_parameter", "number of teeth")
-        obj.addProperty(
-            "App::PropertyLength", "module", "gear_parameter", "module")
-        obj.addProperty(
-            "App::PropertyLength", "inner_diameter", "cycloid_parameter", "inner_diameter")
-        obj.addProperty(
-            "App::PropertyLength", "outer_diameter", "cycloid_parameter", "outer_diameter")
-        obj.addProperty(
-            "App::PropertyLength", "height", "gear_parameter", "height")
-        obj.addProperty(
-            "App::PropertyFloat", "clearence", "gear_parameter", "clearence")
-        obj.addProperty("App::PropertyInteger", "numpoints",
-                        "gear_parameter", "number of points for spline")
-        obj.addProperty("App::PropertyAngle", "beta", "gear_parameter", "beta")
-        obj.addProperty(
-            "App::PropertyLength", "backlash", "gear_parameter", "backlash in mm")
-        obj.addProperty("App::PropertyPythonObject", "gear", "test", "test")
-        obj.gear = self.cycloide_tooth
-        obj.teeth = 15
-        obj.module = '1. mm'
-        obj.inner_diameter = '5 mm'
-        obj.outer_diameter = '5 mm'
-        obj.beta = '0. deg'
-        obj.height = '5. mm'
-        obj.clearence = 0.25
-        obj.numpoints = 15
-        obj.backlash = '0.00 mm'
-        obj.Proxy = self
-
-    def execute(self, fp):
-        pass
-        fp.gear.m = fp.module.Value
-        fp.gear.z = fp.teeth
-        fp.gear.z1 = fp.inner_diameter.Value
-        fp.gear.z2 = fp.outer_diameter.Value
-        fp.gear.clearence = fp.clearence
-        fp.gear.backlash = fp.backlash.Value
-        fp.gear._update()
-        pts = fp.gear.points(num=fp.numpoints)
-        wi = []
-        for i in pts:
-            out = BSplineCurve()
-            out.interpolate(map(fcvec, i))
-            wi.append(out)
-        s = Wire(Shape(wi).Edges)
-        wi = []
-        for i in range(fp.gear.z):
-            rot = App.Matrix()
-            rot.rotateZ(-i * fp.gear.phipart)
-            tooth_rot = s.transformGeometry(rot)
-            if i != 0:
-                pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
-                pt_1 = tooth_rot.Edges[0].Vertexes[-1].Point
-                wi.append(Wire([Line(pt_0, pt_1).toShape()]))
-            wi.append(tooth_rot)
-        pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
-        pt_1 = wi[0].Edges[0].Vertexes[-1].Point
-        wi.append(Wire([Line(pt_0, pt_1).toShape()]))
-        wi = Wire(wi)
-        if fp.beta.Value == 0:
-            sh = Face(wi)
-            fp.Shape = sh.extrude(App.Vector(0, 0, fp.height.Value))
-        else:
-            pass
-            fp.Shape = helicalextrusion(
-                wi, fp.height.Value, fp.height.Value * tan(fp.beta.Value * pi / 180) * 2 / fp.gear.d)
-
-    def __getstate__(self):
-        return None
-
-    def __setstate__(self, state):
-        return None
-
-
-class bevel_gear():
-
-    """parameters:
-        alpha:  pressureangle,   10-30°
-        gamma:  cone angle,      0 < gamma < pi/4
-    """
-
-    def __init__(self, obj):
-        self.bevel_tooth = bevel_tooth()
-        obj.addProperty("App::PropertyInteger",
-                        "teeth", "gear_parameter", "number of teeth")
-        obj.addProperty(
-            "App::PropertyLength", "height", "gear_parameter", "height")
-        obj.addProperty(
-            "App::PropertyAngle", "gamma", "involute_parameter", "gamma")
-        obj.addProperty(
-            "App::PropertyAngle", "alpha", "involute_parameter", "alpha")
-        obj.addProperty("App::PropertyLength", "m", "gear_parameter", "m")
-        obj.addProperty(
-            "App::PropertyFloat", "clearence", "gear_parameter", "clearence")
-        obj.addProperty("App::PropertyInteger", "numpoints",
-                        "gear_parameter", "number of points for spline")
-        obj.addProperty(
-            "App::PropertyLength", "backlash", "gear_parameter", "backlash in mm")
-        obj.addProperty("App::PropertyPythonObject", "gear", "test", "test")
-        obj.gear = self.bevel_tooth
-        obj.m = '1. mm'
-        obj.teeth = 15
-        obj.alpha = '70. deg'
-        obj.gamma = '45. deg'
-        obj.height = '5. mm'
-        obj.numpoints = 6
-        obj.backlash = '0.00 mm'
-        obj.clearence = 0.1
-        self.obj = obj
-        obj.Proxy = self
-
-    def execute1(self, fp):
-        fp.gear.z = fp.teeth
-        fp.gear.alpha = fp.alpha.Value * pi / 180.
-        fp.gear.gamma = fp.gamma.Value * pi / 180
-        fp.gear.backlash = fp.backlash
-        fp.gear._update()
-        pts = fp.gear.points(num=fp.numpoints)
-        tooth = self.create_tooth()
-        teeth = [tooth]
-        rot = App.Matrix()
-        rot.rotateZ(2  * pi / fp.teeth)
-        top_cap = [i.Edges[0] for i in tooth.Faces]
-        bottom_cap = [i.Edges[3] for i in tooth.Faces]
-        for i in range(fp.teeth - 1): 
-            new_tooth = teeth[-1].transformGeometry(rot)
-            edge1 = new_tooth.Faces[0].Edges[2]
-            edge2 = teeth[-1].Faces[-1].Edges[1]
-            face1 = make_face(edge1, edge2)
-            teeth.append(face1)
-            teeth.append(new_tooth)
-            top_cap.append(face1.Edges[3])
-            bottom_cap.append(face1.Edges[1])
-            top_cap += [i.Edges[0] for i in new_tooth.Faces]
-            bottom_cap += [i.Edges[3] for i in new_tooth.Faces]
-        edge1 = teeth[0].Faces[0].Edges[2]
-        edge2 = teeth[-1].Faces[-1].Edges[1]
-        face1 = make_face(edge1, edge2)
-        teeth.append(face1)
-        top_cap.append(face1.Edges[3])
-        bottom_cap.append(face1.Edges[1])
-        top_cap = Face(Wire(top_cap))
-        bottom_cap = Face(Wire(bottom_cap))
-        fcs = Compound(teeth).Faces
-        top_cap.reverse()
-        fp.Shape = Solid(Shell(fcs + [top_cap, bottom_cap]))
-
-
-    def execute(self, fp):
-        fp.gear.z = fp.teeth
-        fp.gear.module = fp.m.Value
-        fp.gear.alpha = fp.alpha.Value * pi / 180.
-        fp.gear.gamma = fp.gamma.Value * pi / 180
-        fp.gear.backlash = fp.backlash.Value
-        fp.gear.clearence = fp.clearence
-        fp.gear._update()
-        pts = fp.gear.points(num=fp.numpoints)
-        scal1 = fp.m.Value * fp.gear.z / 2 / tan(
-            fp.gamma.Value * pi / 180) - fp.height.Value / 2
-        scal2 = fp.m.Value * fp.gear.z / 2 / tan(
-            fp.gamma.Value * pi / 180) + fp.height.Value / 2
-        fp.Shape = makeLoft([self.createteeths(pts, scal1, fp.teeth), self.createteeths(pts, scal2, fp.teeth)], True)
-        # fp.Shape = self.createteeths(pts, pos1, fp.teeth)
-
-
-    def create_tooth(self):
-        w = []
-        scal1 = self.obj.m.Value * self.obj.gear.z / 2 / tan(
-            self.obj.gamma.Value * pi / 180) - self.obj.height.Value / 2
-        scal2 = self.obj.m.Value * self.obj.gear.z / 2 / tan(
-            self.obj.gamma.Value * pi / 180) + self.obj.height.Value / 2
-        s = [scal1, scal2]
-        pts = self.obj.gear.points(num=self.obj.numpoints)
-        for j, pos in enumerate(s):
-            w1 = []
-            scale = lambda x: fcvec(x * pos)
-            for i in pts:
-                i_scale = map(scale, i)
-                w1.append(i_scale)
-            w.append(w1)
-        surfs = []
-        w_t = zip(*w)
-        for i in w_t:
-            b = BSplineSurface()
-            b.interpolate(i)
-            surfs.append(b)
-        return Shape(surfs)
-
-    def createteeths(self, pts, pos, teeth):
-        w1 = []
-        for i in pts:
-            scale = lambda x: x * pos
-            i_scale = map(scale, i)
-            out = BSplineCurve()
-            out.interpolate(map(fcvec, i_scale))
-            w1.append(out)
-        s = Wire(Shape(w1).Edges)
-        wi = []
-        for i in range(teeth):
-            rot = App.Matrix()
-            rot.rotateZ(2 * i * pi / teeth)
-            tooth_rot = s.transformGeometry(rot)
-            if i != 0:
-                pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
-                pt_1 = tooth_rot.Edges[0].Vertexes[-1].Point
-                wi.append(Wire([Line(pt_0, pt_1).toShape()]))
-            wi.append(tooth_rot)
-        pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
-        pt_1 = wi[0].Edges[0].Vertexes[-1].Point
-        wi.append(Wire([Line(pt_0, pt_1).toShape()]))
-        return(Wire(wi))
-
-    def __getstate__(self):
-        return None
-
-    def __setstate__(self, state):
-        return None
-
-
-def helicalextrusion(wire, height, angle):
-    face_a = Face(wire)
-    face_b = face_a.copy()
-    face_transform = App.Matrix()
-    face_transform.rotateZ(angle)
-    face_transform.move(App.Vector(0, 0, height))
-    face_b . transformShape(face_transform)
-    spine = Wire(Line(fcvec([0., 0, 0]), fcvec([0, 0, height])).toShape())
-    auxspine = makeHelix(height * 2 * pi / angle, height, 1.)
-    faces = [face_a, face_b]
-    pipeshell = BRepOffsetAPI.MakePipeShell(spine)
-    pipeshell.setSpineSupport(spine)
-    pipeshell.add(wire)
-    pipeshell.setAuxiliarySpine(auxspine, True, False)
-    assert(pipeshell.isReady())
-    pipeshell.build()
-    faces.extend(pipeshell.shape().Faces)
-
-    fullshell = Shell(faces)
-    solid = Solid(fullshell)
-    if solid.Volume < 0:
-        solid.reverse()
-    assert(solid.Volume >= 0)
-    return(solid)
-
-def make_face(edge1, edge2):
-    v1, v2 = edge1.Vertexes
-    v3, v4 = edge2.Vertexes
-    e1 = Wire(edge1)
-    e2 = Line(v1.Point, v3.Point).toShape().Edges[0]
-    e3 = edge2
-    e4 = Line(v4.Point, v2.Point).toShape().Edges[0]
-    w = Wire([e3, e4, e1, e2])
-    return(Face(w))
-
--- a/gear/gearfunc/init.py
+++ b/gear/gearfunc/init.py
@@ -1,108 +0,0 @@
-#***************************************************************************
-#*                                                                         *
-#*   This program is free software; you can redistribute it and/or modify  *
-#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
-#*   as published by the Free Software Foundation; either version 2 of     *
-#*   the License, or (at your option) any later version.                   *
-#*   for detail see the LICENCE text file.                                 *
-#*                                                                         *
-#*   This program is distributed in the hope that it will be useful,       *
-#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
-#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
-#*   GNU Library General Public License for more details.                  *
-#*                                                                         *
-#*   You should have received a copy of the GNU Library General Public     *
-#*   License along with this program; if not, write to the Free Software   *
-#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
-#*   USA                                                                   *
-#*                                                                         *
-#***************************************************************************
-
-
-import FreeCAD
-import FreeCADGui as Gui
-from _Classes import involute_gear, cycloide_gear, bevel_gear, involute_gear_rack
-
-
-class CreateInvoluteGear():
-    """create an involute gear"""
-    def __init__(self):
-        pass
-
-    def GetResources(self):
-        return {'Pixmap': 'involutegear.svg', 'MenuText': 'involute gear', 'ToolTip': 'involute gear'}
-
-    def IsActive(self):
-        if FreeCAD.ActiveDocument is None:
-            return False
-        else:
-            return True
-
-    def Activated(self):
-        a = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", "involute_gear")
-        involute_gear(a)
-        a.ViewObject.Proxy = 0.
-        FreeCAD.ActiveDocument.recompute()
-        Gui.SendMsgToActiveView("ViewFit")
-
-
-class CreateInvoluteRack():
-    def __init__(self):
-        pass
-
-    def GetResources(self):
-        return {'Pixmap': 'involuterack.svg', 'MenuText': 'involute rack', 'ToolTip': 'involute rack'}
-
-    def IsActive(self):
-        if FreeCAD.ActiveDocument is None:
-            return False
-        else:
-            return True
-
-    def Activated(self):
-        a = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", "involute_rack")
-        involute_gear_rack(a)
-        a.ViewObject.Proxy = 0.
-        FreeCAD.ActiveDocument.recompute()
-        Gui.SendMsgToActiveView("ViewFit")
-
-
-class CreateCycloideGear():
-    def __init__(self):
-        pass
-
-    def GetResources(self):
-        return {'Pixmap': 'cycloidegear.svg', 'MenuText': 'cycloide gear', 'ToolTip': 'cycloide gear'}
-
-    def IsActive(self):
-        if FreeCAD.ActiveDocument is None:
-            return False
-        else:
-            return True
-
-    def Activated(self):
-        a = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", "cycloide_gear")
-        cycloide_gear(a)
-        a.ViewObject.Proxy = 0.
-        FreeCAD.ActiveDocument.recompute()
-        Gui.SendMsgToActiveView("ViewFit")
-
-class CreateBevelGear():
-    def __init__(self):
-        pass
-
-    def GetResources(self):
-        return {'Pixmap': 'bevelgear.svg', 'MenuText': 'bevel gear', 'ToolTip': 'bevel gear'}
-
-    def IsActive(self):
-        if FreeCAD.ActiveDocument is None:
-            return False
-        else:
-            return True
-
-    def Activated(self):
-        a = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", "bevel_gear")
-        bevel_gear(a)
-        a.ViewObject.Proxy = 0.
-        FreeCAD.ActiveDocument.recompute()
-        Gui.SendMsgToActiveView("ViewFit")
--- a/gear/gearfunc/_bevel_tooth.py
+++ b/gear/gearfunc/_bevel_tooth.py
@@ -1,168 +0,0 @@
-# -*- coding: utf-8 -*-
-#***************************************************************************
-#*                                                                         *
-#*   This program is free software; you can redistribute it and/or modify  *
-#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
-#*   as published by the Free Software Foundation; either version 2 of     *
-#*   the License, or (at your option) any later version.                   *
-#*   for detail see the LICENCE text file.                                 *
-#*                                                                         *
-#*   This program is distributed in the hope that it will be useful,       *
-#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
-#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
-#*   GNU Library General Public License for more details.                  *
-#*                                                                         *
-#*   You should have received a copy of the GNU Library General Public     *
-#*   License along with this program; if not, write to the Free Software   *
-#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
-#*   USA                                                                   *
-#*                                                                         *
-#***************************************************************************
-
-from __future__ import division
-from __future__ import division
-from numpy import cos, sin, tan, arccos, arctan, pi, array, linspace, transpose, vstack, sqrt
-from _functions import rotation3D, reflection3D
-
-
-
-class bevel_tooth(object):
-    def __init__(self, alpha=70 * pi / 180, gamma=pi / 4, clearence=0.1,
-                 z=21, backlash=0.00, module=0.25):
-        self.alpha = alpha
-        self.gamma = gamma
-        self.z = z
-        self.clearence = clearence
-        self.backlash = backlash
-        self.module = module
-
-        self.involute_end = arccos(
-            1 / sqrt(2) * sqrt((42. + 16.*cos(2.*self.alpha) +
-            6.*cos(4.*self.alpha) + cos(4.*self.alpha - 4.*self.gamma) - 8.*cos(2.*self.alpha - 2.*self.gamma) -
-            4.*cos(4.*self.alpha - 2.*self.gamma) + 24.*cos(2.*self.gamma) - 2.*cos(4.*self.gamma) -
-            8.*cos(2.*(self.alpha + self.gamma)) + cos(4.*(self.alpha + self.gamma)) -
-            4.*cos(4.*self.alpha + 2.*self.gamma) + 24.*cos((4.*sin(self.gamma))/self.z) +
-            4.*cos(2.*self.alpha - (4.*sin(self.gamma))/self.z) + 4.*cos(2.*self.alpha -
-            4.*self.gamma - (4.*sin(self.gamma))/self.z) - 8.*cos(2.*self.alpha - 2.*self.gamma -
-            (4.*sin(self.gamma))/self.z) + 24.*cos(4.*(self.gamma + sin(self.gamma)/self.z)) -
-            8.*cos(2.*(self.alpha + self.gamma + (2.*sin(self.gamma))/self.z)) + 4.*cos(2.*self.alpha +
-            (4.*sin(self.gamma))/self.z) + 16.*cos(2.*self.gamma + (4.*sin(self.gamma))/self.z) +
-            4.*cos(2.*self.alpha + 4.*self.gamma + (4.*sin(self.gamma))/self.z) + 32.*abs(cos(self.gamma +
-            (2.*sin(self.gamma))/self.z))*cos(self.alpha)*sqrt(4.*cos(2.*self.alpha) -
-            2.*(-2. + cos(2.*self.alpha - 2.*self.gamma) - 2.*cos(2.*self.gamma) + cos(2.*(self.alpha + self.gamma)) +
-            4.*cos(2.*self.gamma + (4.*sin(self.gamma))/self.z)))*sin(2.*self.gamma))/(-6. - 2.*cos(2.*self.alpha) +
-            cos(2.*self.alpha - 2.*self.gamma) - 2.*cos(2.*self.gamma) + cos(2.*(self.alpha + self.gamma)))**2))
-
-        self.involute_start = -pi/2. + \
-            arctan(1/tan(self.gamma)*1/cos(self.alpha))
-        self.involute_start_radius = self.getradius(self.involute_start)
-        self.r_f = sin(self.gamma - sin(gamma) * 2 / self.z) - self.clearence * sin(self.gamma)
-        self.z_f = cos(self.gamma - sin(gamma) * 2 / self.z)
-        self.add_foot = True
-
-        if self.involute_start_radius < self.r_f:
-            self.add_foot = False
-            self.involute_start = -arccos(
-                sqrt((42 + 16*cos(2*self.alpha) + 6*cos(4*self.alpha) -
-                4*cos(4*self.alpha - 2*self.gamma) - 8*cos(2*(self.alpha - self.gamma)) +
-                cos(4*(self.alpha - self.gamma)) + 24*cos(2*self.gamma) - 2*cos(4*self.gamma) -
-                8*cos(2*(self.alpha + self.gamma)) + cos(4*(self.alpha + self.gamma)) -
-                4*cos(2*(2*self.alpha + self.gamma)) + 24*cos((4*sin(self.gamma))/self.z) +
-                4*cos(2*self.alpha - (4*sin(self.gamma))/self.z) + 16*cos(2*self.gamma -
-                (4*sin(self.gamma))/self.z) + 24*cos(4*self.gamma - (4*sin(self.gamma))/self.z) +
-                4*cos(2*self.alpha + 4*self.gamma - (4*sin(self.gamma))/self.z) -
-                8*cos(2*(self.alpha + self.gamma - (2*sin(self.gamma))/self.z)) +
-                4*cos(2*self.alpha + (4*sin(self.gamma))/self.z) + 4*cos(2*self.alpha -
-                4*self.gamma + (4*sin(self.gamma))/self.z) - 8*cos(2*self.alpha - 2*self.gamma +
-                (4*sin(self.gamma))/self.z) + 32*sqrt(2)*sqrt(-(cos(self.alpha)**2*
-                (-2 - 2*cos(2*self.alpha) + cos(2*(self.alpha - self.gamma)) -
-                2*cos(2*self.gamma) + cos(2*(self.alpha + self.gamma)) +
-                4*cos(2*self.gamma - (4*sin(self.gamma))/self.z))*cos(self.gamma - (2*sin(self.gamma))/self.z)**2*
-                sin(2*self.gamma)**2)))/(-6 - 2*cos(2*self.alpha) + cos(2*(self.alpha - self.gamma)) -
-                2*cos(2*self.gamma) + cos(2*(self.alpha + self.gamma)))**2)/sqrt(2))
-
-    def involute_function_x(self):
-        def func(s):
-            return((
-                -(cos(s*1/sin(self.alpha)*1/sin(self.gamma))*sin(self.alpha)*sin(s)) +
-                (cos(s)*sin(self.gamma) + cos(self.alpha)*cos(self.gamma)*sin(s))*
-                sin(s*1/sin(self.alpha)*1/sin(self.gamma))))
-        return(func)
-
-    def involute_function_y(self):
-        def func(s):
-            return((
-                cos(s*1/sin(self.alpha)*1/sin(self.gamma))*(cos(s)*sin(self.gamma) +
-                cos(self.alpha)*cos(self.gamma)*sin(s)) + sin(self.alpha)*sin(s)*
-                sin(s*1/sin(self.alpha)*1/sin(self.gamma))))
-        return(func)
-
-    def involute_function_z(self):
-        def func(s):
-            return((
-                cos(self.gamma)*cos(s) - cos(self.alpha)*sin(self.gamma)*sin(s)))
-        return(func)
-
-    def getradius(self, s):
-        x = self.involute_function_x()
-        y = self.involute_function_y()
-        rx = x(s)
-        ry = y(s)
-        return(sqrt(rx**2 + ry**2))
-
-    def involute_points(self, num=10):
-        pts = linspace(self.involute_start, self.involute_end, num=num)
-        fx = self.involute_function_x()
-        x = array(map(fx, pts))
-        fy = self.involute_function_y()
-        y = array(map(fy, pts))
-        fz = self.involute_function_z()
-        z = array(map(fz, pts))
-        xyz = transpose(array([x, y,z]))
-        if self.add_foot:
-            p = xyz[0]
-            p1 =map(lambda x: x * (self.r_f / sqrt(p[0]**2 + p[1]**2)), p)
-            p1[2] = self.z_f
-            xyz=vstack([[p1], xyz])
-        xy = [[i[0]/i[2],i[1]/i[2],1.] for i in xyz]
-        backlash_rot = rotation3D(self.backlash / 4)
-        xy = backlash_rot(xy)
-        return(xy)
-
-    def points(self, num=10):
-        pts = self.involute_points(num = num)
-        rot = rotation3D(-pi/self.z/2)
-        pts = rot(pts)
-        ref = reflection3D(pi/2)
-        pts1 = ref(pts)[::-1]
-        rot = rotation3D(2*pi/self.z)
-        pt3 = rot(pts[0])
-        if self.add_foot:
-            return(array([
-                [pts[0],pts[1]],
-                pts[1:],
-                [pts[-1], pts1[0]],
-                pts1[:-1],
-                [pts1[-2], pts1[-1]]
-                ]))
-            return(array([pts,[pts[-1],pts1[0]], pts1]))
-        else:
-            return(array([pts,[pts[-1],pts1[0]], pts1]))
-
-
-    def _update(self):
-        self.__init__(z = self.z, clearence = self.clearence,
-                alpha = self.alpha,  gamma = self.gamma, backlash = self.backlash, module = self.module)
-
-
-if __name__ == "__main__":
-	from matplotlib import pyplot
-	gear = bevel_tooth()
-	x = []
-	y = []
-	for i in gear.points(30):
-		for j in i:
-			x.append(j[0])
-			y.append(j[1])
-	pyplot.plot(x,y)
-	pyplot.show()
--- a/gear/gearfunc/_cycloide_tooth.py
+++ b/gear/gearfunc/_cycloide_tooth.py
@@ -1,118 +0,0 @@
-# -*- coding: utf-8 -*-
-#***************************************************************************
-#*                                                                         *
-#*   This program is free software; you can redistribute it and/or modify  *
-#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
-#*   as published by the Free Software Foundation; either version 2 of     *
-#*   the License, or (at your option) any later version.                   *
-#*   for detail see the LICENCE text file.                                 *
-#*                                                                         *
-#*   This program is distributed in the hope that it will be useful,       *
-#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
-#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
-#*   GNU Library General Public License for more details.                  *
-#*                                                                         *
-#*   You should have received a copy of the GNU Library General Public     *
-#*   License along with this program; if not, write to the Free Software   *
-#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
-#*   USA                                                                   *
-#*                                                                         *
-#***************************************************************************
-
-from __future__ import division
-from __future__ import division
-from numpy import cos, sin, arccos, pi, array, linspace, transpose, vstack
-from _functions import rotation, reflection
-
-class cycloide_tooth():
-    def __init__(self, z1 = 5, z2 = 5, z = 14, m = 5, clearence = 0.12, backlash = 0.00):
-        self.m = m
-        self.z = z
-        self.clearence = clearence
-        self.backlash = backlash
-        self.z1 = z1
-        self.z2 = z2
-        self._calc_gear_factors()
-
-    def _calc_gear_factors(self):
-    	self.d1 = self.z1 * self.m
-        self.d2 = self.z2 * self.m
-        self.phi = self.m * pi
-        self.d = self.z * self.m
-        self.da = self.d + 2*self.m
-        self.di = self.d - 2*self.m - self.clearence * self.m
-        self.phipart = 2 * pi / self.z
-
-    def epicycloide_x(self):
-        def func(t):
-            return(((self.d2 + self.d) * cos(t))/2. - (self.d2 * cos((1 + self.d / self.d2) * t))/2.)
-        return(func)
-
-    def epicycloide_y(self):
-        def func(t):
-            return(((self.d2 + self.d) * sin(t))/2. - (self.d2 * sin((1 + self.d / self.d2) * t))/2.)
-        return(func)
-
-    def hypocycloide_x(self):
-        def func(t):
-            return((self.d - self.d1)*cos(t)/2 + self.d1/2 * cos((self.d / self.d1 - 1) * t))
-        return(func)
-
-    def hypocycloide_y(self):
-        def func(t):
-            return((self.d - self.d1)*sin(t)/2 - self.d1/2 *sin((self.d/self.d1 - 1)*t))
-        return(func)
-
-    def inner_end(self):
-        return(
-            -((self.d1*arccos((2*self.d1**2 - self.di**2 -
-                2*self.d1*self.d + self.d**2)/(2.*self.d1*
-                (self.d1 - self.d))))/self.d)
-            )
-
-    def outer_end(self):
-        return(
-            (self.d2*arccos((2*self.d2**2 - self.da**2 +
-                2*self.d2*self.d + self.d**2)/
-                (2.*self.d2*(self.d2 + self.d))))/self.d
-            )
-
-    def points(self, num = 10):
-
-        inner_x = self.hypocycloide_x()
-        inner_y = self.hypocycloide_y()
-        outer_x = self.epicycloide_x()
-        outer_y = self.epicycloide_y()
-        t_inner_end = self.inner_end()
-        t_outer_end = self.outer_end()
-        t_vals_outer = linspace(0, t_outer_end, num)
-        t_vals_inner = linspace(t_inner_end,0,num)
-        pts_outer_x = map(outer_x, t_vals_outer)
-        pts_outer_y = map(outer_y, t_vals_outer)
-        pts_inner_x = map(inner_x, t_vals_inner)
-        pts_inner_y = map(inner_y, t_vals_inner)
-        pts_outer = transpose([pts_outer_x, pts_outer_y])
-        pts_inner = transpose([pts_inner_x, pts_inner_y])
-        pts1 = vstack([pts_inner[:-2],pts_outer])
-        rot =rotation(self.phipart / 4 - self.backlash)
-        pts1 = rot(pts1)
-        ref = reflection(0.)
-        pts2 = ref(pts1)[::-1]
-        one_tooth = [pts1,array([pts1[-1],pts2[0]]), pts2]
-        return(one_tooth)
-
-    def _update(self):
-        self.__init__(m = self.m, z = self.z, z1 = self.z1, z2 = self.z2,
-                      clearence = self.clearence, backlash = self.backlash)
-
-if __name__ == "__main__":
-	from matplotlib import pyplot
-	gear = cycloide_tooth()
-	x = []
-	y = []
-	for i in gear.points(30):
-		for j in i:
-			x.append(j[0])
-			y.append(j[1])
-	pyplot.plot(x[-60:],y[-60:])
-	pyplot.show()
--- a/gear/gearfunc/_functions.py
+++ b/gear/gearfunc/_functions.py
@@ -1,162 +0,0 @@
-# -*- coding: utf-8 -*-
-#***************************************************************************
-#*                                                                         *
-#*   This program is free software; you can redistribute it and/or modify  *
-#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
-#*   as published by the Free Software Foundation; either version 2 of     *
-#*   the License, or (at your option) any later version.                   *
-#*   for detail see the LICENCE text file.                                 *
-#*                                                                         *
-#*   This program is distributed in the hope that it will be useful,       *
-#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
-#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
-#*   GNU Library General Public License for more details.                  *
-#*                                                                         *
-#*   You should have received a copy of the GNU Library General Public     *
-#*   License along with this program; if not, write to the Free Software   *
-#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
-#*   USA                                                                   *
-#*                                                                         *
-#***************************************************************************
-
-from __future__ import division
-from numpy import sin, cos, dot, array, ndarray, vstack, transpose, sqrt
-from numpy.linalg import solve
-
-
-def reflection(alpha):
-    mat = array(
-        [[cos(2 * alpha), -sin(2 * alpha)], [-sin(2 * alpha), -cos(2 * alpha)]])
-
-    def func(x):
-        return(dot(x, mat))
-    return(func)
-
-
-def reflection3D(alpha):
-    mat = array([[cos(2 * alpha), -sin(2 * alpha), 0.],
-                 [-sin(2 * alpha), -cos(2 * alpha), 0.], [0., 0., 1.]])
-
-    def func(x):
-        return(dot(x, mat))
-    return(func)
-
-
-def rotation(alpha, midpoint=[0, 0]):
-    mat = array([[cos(alpha), -sin(alpha)], [sin(alpha), cos(alpha)]])
-    midpoint = array(midpoint)
-    vec = midpoint - dot(midpoint, mat)
-    trans = translation(vec)
-
-    def func(xx):
-        return(trans(dot(xx, mat)))
-    return(func)
-
-
-def rotation3D(alpha):
-    mat = array(
-        [
-            [cos(alpha), -sin(alpha), 0.],
-            [sin(alpha), cos(alpha), 0.],
-            [0., 0., 1.]])
-
-    def func(xx):
-        return(dot(xx, mat))
-    return(func)
-
-
-def translation(vec):
-    def trans(x):
-        return([x[0] + vec[0], x[1] + vec[1]])
-
-    def func(x):
-        return(array(map(trans, x)))
-    return(func)
-
-
-def trim(p1, p2, p3, p4):
-    a1 = array(p1)
-    a2 = array(p2)
-    a3 = array(p3)
-    a4 = array(p4)
-    if all(a1 == a2) or all(a3 == a4):
-        if all(a1 == a3):
-            return(a1)
-        else:
-            return(False)
-    elif all(a1 == a3):
-        if all(a2 == a4):
-            return((a1 + a2) / 2)
-        else:
-            return(a1)
-    elif all(a1 == a4):
-        if all(a2 == a3):
-            return((a1 + a2) / 2)
-        else:
-            return(a1)
-    elif all(a2 == a3) or all(a2 == a4):
-        return(p2)
-    try:
-        g, h = solve(transpose([-a2 + a1, a4 - a3]), a1 - a3)
-    except:
-        print(Exception)
-        return(False)
-    else:
-        if 0. < g < 1. and 0. < h < 1.:
-            return(a1 + g * (a2 - a1))
-        else:
-            return(False)
-    return(False)
-
-
-def trimfunc(l1, l2):
-    ik = 0
-    i0 = array(l1[0])
-    for i in array(l1[1:]):
-        jk = 0
-        j0 = array(l2[0])
-        for j in array(l2[1:]):
-            s = trim(j0, j, i0, i)
-            if isinstance(s, ndarray):
-                if ik == 0:
-                    l1 = [l1[0]]
-                else:
-                    l1 = l1[:ik]
-                if jk == 0:
-                    l2 == [l2[0]]
-                else:
-                    l2 = l2[jk::-1]
-                return(array([vstack([l1, [s]]), vstack([[s], l2])]))
-            j0 = j
-            jk += 1
-        i0 = i
-        ik += 1
-    return(False)
-
-
-def norm(vec1, vec2):
-    vec = array(vec2) - array(vec1)
-    out = 0
-    for i in vec:
-        out += i ** 2
-    return(sqrt(out))
-
-
-def nearestpts(evolv, underc):
-    ik = 0
-    iout = 0
-    jout = 0
-    outmin = 1000.
-    for i in array(evolv[1:]):
-        jk = 0
-        for j in array(underc[1:]):
-            l = norm(i, j)
-            if l < outmin:
-                re = norm(i, [0, 0])
-                ru = norm(j, [0, 0])
-                if re > ru:
-                    outmin = l
-                    iout, jout = [ik, jk]
-            jk += 1
-        ik += 1
-    return([vstack([underc[:jout], evolv[iout]]), evolv[iout:]])
--- a/gear/gearfunc/_involute_tooth.py
+++ b/gear/gearfunc/_involute_tooth.py
@@ -1,197 +0,0 @@
-# -*- coding: utf-8 -*-
-#***************************************************************************
-#*                                                                         *
-#*   This program is free software; you can redistribute it and/or modify  *
-#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
-#*   as published by the Free Software Foundation; either version 2 of     *
-#*   the License, or (at your option) any later version.                   *
-#*   for detail see the LICENCE text file.                                 *
-#*                                                                         *
-#*   This program is distributed in the hope that it will be useful,       *
-#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
-#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
-#*   GNU Library General Public License for more details.                  *
-#*                                                                         *
-#*   You should have received a copy of the GNU Library General Public     *
-#*   License along with this program; if not, write to the Free Software   *
-#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
-#*   USA                                                                   *
-#*                                                                         *
-#***************************************************************************
-
-from __future__ import division
-from numpy import tan, cos, sin, sqrt, arctan, pi, array, linspace, transpose, vstack, ndarray
-from _functions import nearestpts, rotation, reflection, trimfunc, norm, translation
-import numpy as np
-
-class involute_tooth():
-    def __init__(self, m=5, z=15, alpha=20 * pi / 180., clearence=0.12, shift=0.5, beta=0., undercut=False, backlash=0.00):
-        self.alpha = alpha
-        self.beta = beta
-        self.m_n = m
-        self.z = z
-        self.undercut = undercut
-        self.shift = shift
-        self.clearence = clearence
-        self.backlash = backlash
-        self._calc_gear_factors()
-
-    def _calc_gear_factors(self):
-        self.alpha_t = arctan(tan(self.alpha) / cos(self.beta))
-        self.m = self.m_n / cos(self.beta)
-        self.c = self.clearence * self.m_n
-        self.midpoint = [0., 0.]
-        self.d = self.z * self.m
-        self.dw = self.m * self.z
-        self.da = self.dw + 2. * self.m_n + 2. * self.shift * self.m_n
-        self.df = self.dw - 2. * self.m_n - \
-            2 * self.c + 2. * self.shift * self.m_n
-        self.dg = self.d * cos(self.alpha_t)
-        self.phipart = 2 * pi / self.z
-
-        self.undercut_end = sqrt(-self.df ** 2 + self.da ** 2) / self.da
-        self.undercut_rot = (-self.df / self.dw * tan(arctan((2 * ((self.m * pi) / 4. -
-                            (self.c + self.m_n) * tan(self.alpha_t))) / self.df)))
-
-        self.involute_end = sqrt(self.da ** 2 - self.dg ** 2) / self.dg
-        self.involute_rot1 = sqrt(-self.dg ** 2 + (self.dw) ** 2) / self.dg - arctan(
-            sqrt(-self.dg ** 2 + (self.dw) ** 2) / self.dg)
-        self.involute_rot2 = self.m / \
-            (self.d) * (pi / 2 + 2 * self.shift * tan(self.alpha_t))
-        self.involute_rot2 = 1 / self.z * (pi / 2 + 2 * self.shift * tan(self.alpha_t))
-        self.involute_rot = self.involute_rot1 + self.involute_rot2
-        self.involute_start = 0.
-        if self.dg <= self.df:
-            self.involute_start = sqrt(self.df ** 2 - self.dg ** 2) / self.dg
-
-
-    def undercut_points(self, num=10):
-        pts = linspace(0, self.undercut_end, num=num)
-        fx = self.undercut_function_x()
-        x = array(map(fx, pts))
-        fy = self.undercut_function_y()
-        y = array(map(fy, pts))
-        xy = transpose([x, y])
-        rotate = rotation(
-            self.undercut_rot + self.phipart / 2 - self.backlash / 4)
-        xy = rotate(xy)
-        return(array(xy))
-
-    def involute_points(self, num=10):
-        pts = linspace(self.involute_start, self.involute_end, num=num)
-        fx = self.involute_function_x()
-        x = array(map(fx, pts))
-        fy = self.involute_function_y()
-        y = array(map(fy, pts))
-        rot = rotation(self.involute_rot - self.backlash / 4)
-        xy = rot(transpose(array([x, y])))
-        return(xy)
-
-    def points(self, num=10):
-        l1 = self.undercut_points(num=num)
-        l2 = self.involute_points(num=num)
-        s = trimfunc(l1, l2[::-1])
-        if self.undercut:
-            if isinstance(s, ndarray):
-                u1, e1 = s
-            else:
-                u1, e1 = nearestpts(l2, l1)
-        else:
-            u1 = False
-            if self.dg > self.df:
-                u1 = vstack(
-                    [[l2[0] * self.df / (norm(l2[0], [0, 0]) * 2)], [l2[0]]])
-                e1 = l2
-            else:
-                e1 = l2
-
-        reflect = reflection(0)
-        e2 = reflect(e1)[::-1]
-        if isinstance(u1, bool):
-            u2 = False
-            one_tooth = [e1, [e1[-1], e2[0]], e2]
-        else:
-            u2 = reflect(u1)[::-1]
-            one_tooth = [u1, e1, [e1[-1], e2[0]], e2, u2]
-        return(one_tooth)
-
-    def gearfunc(self, x):
-        rot = rotation(2 * x / self.dw, self.midpoint)
-        return(rot)
-
-    def undercut_function_x(self):
-        def func(psi):
-            return(
-               cos(psi - (self.df * tan(psi)) / self.dw) * sqrt(self.df ** 2 / 4 +
-                                                                (self.df ** 2 * tan(psi) ** 2) / 4.))
-        return(func)
-
-    def undercut_function_y(self):
-        def func(psi):
-            return(
-                sin(psi - (self.df * tan(psi)) / self.dw) * sqrt(self.df ** 2 / 4 +
-                                                                (self.df ** 2 * tan(psi) ** 2) / 4.))
-        return(func)
-
-    def involute_function_x(self):
-        def func(phi):
-            return(array(self.dg / 2 * cos(phi) + phi * self.dg / 2 * sin(phi)))
-        return(func)
-
-    def involute_function_y(self):
-        def func(phi):
-            return(self.dg / 2 * sin(phi) - phi * self.dg / 2 * cos(phi))
-        return(func)
-
-    def _update(self):
-        self.__init__(m = self.m_n, z = self.z,
-                alpha = self.alpha, clearence = self.clearence, shift = self.shift,
-                beta = self.beta, undercut = self.undercut, backlash = self.backlash)
-
-
-class involute_rack(object):
-    def __init__(self, m=5, z=15, alpha=20 * pi / 180., thickness=5):
-        self.alpha = alpha
-        self.thickness = thickness
-        self.m = m
-        self.z = z
-
-    def _update(self):
-        self.__init__(m = self.m, z = self.z, alpha = self.alpha, thickness = self.thickness)
-
-    def points(self, num=10):
-        a = 2 * self.m * tan(self.alpha)
-        b = ((self.m * pi) / 2 - a) / 2
-        tooth= [
-            [self.m, -a - b],
-            [-self.m, -b],
-            [-self.m, b],
-            [self.m, a + b]
-            ]
-        teeth = [tooth]
-        trans = translation([0., self.m * pi, 0.])
-        for i in range(self.z):
-            teeth.append(trans(teeth[-1]))
-        teeth = list(np.vstack(teeth))
-        teeth.append(list(teeth[-1]))
-        teeth[-1][0] += self.thickness
-        teeth.append(list(teeth[0]))
-        teeth[-1][0] += self.thickness
-        teeth.append(teeth[0])
-        return(teeth)
-
-
-
-
-
-if __name__ == "__main__":
-    from matplotlib import pyplot
-    gear = involute_rack()
-    x = []
-    y = []
-    for i in gear.points(30):
-        x.append(i[0])
-        y.append(i[1])
-    pyplot.plot(x, y)
-    pyplot.show()
-
--- a/package.xml
+++ b/package.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<package format="1" xmlns="https://wiki.freecad.org/Package_Metadata">
+  <name>freecad.gears workbench</name>
+  <description>A gear workbench for FreeCAD</description>
+  <version>1.0</version>
+  <date>2022-02-07</date>
+  <maintainer email="sppedflyer@gmail.com">looooo</maintainer>
+  <license file="LICENSE">GPL 3</license>
+  <dep>scipy</dep>
+  <url type="repository" branch="develop">https://github.com/looooo/freecad.gears</url>
+  <url type="bugtracker">https://github.com/looooo/freecad.gears/issues</url>
+  <url type="documentation">https://wiki.freecad.org/FCGear_Workbench</url>
+  <icon>freecad/gears/icons/gearworkbench.svg</icon>
+
+  <content>
+    <workbench>
+      <classname>GearWorkbench</classname>
+      <subdirectory>./</subdirectory>
+      <freecadmin>0.19</freecadmin>
+      <tag>gear</tag>
+      <tag>gears</tag>
+    </workbench>
+  </content>
+
+</package>
--- a/pictures/Bildschirmfoto
+++ b/pictures/Bildschirmfoto
--- a/pictures/Bildschirmfoto
+++ b/pictures/Bildschirmfoto
--- a/pictures/Bildschirmfoto
+++ b/pictures/Bildschirmfoto
--- a/pygears/init.py
+++ b/pygears/init.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# ***************************************************************************
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+__version__ = "0.0.3"
--- a/pygears/_functions.py
+++ b/pygears/_functions.py
@@ -0,0 +1,183 @@
+# -*- coding: utf-8 -*-
+# ***************************************************************************
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+from __future__ import division
+from numpy import sin, cos, dot, array, ndarray, vstack, transpose, sqrt
+from numpy.linalg import solve, norm
+
+
+def reflection(angle):
+    mat = array(
+        [[cos(2 * angle), -sin(2 * angle)], [-sin(2 * angle), -cos(2 * angle)]])
+
+    def func(x):
+        return(dot(x, mat))
+    return(func)
+
+
+def reflection3D(angle):
+    mat = array([[cos(2 * angle), -sin(2 * angle), 0.],
+                 [-sin(2 * angle), -cos(2 * angle), 0.], [0., 0., 1.]])
+
+    def func(x):
+        return(dot(x, mat))
+    return(func)
+
+
+def rotation(angle, midpoint=None):
+    midpoint = midpoint or [0., 0.]
+    mat = array([[cos(angle), -sin(angle)],
+                 [sin(angle), cos(angle)]])
+    midpoint = array(midpoint)
+    vec = midpoint - dot(midpoint, mat)
+    trans = translation(vec)
+
+    def func(xx):
+        return(trans(dot(xx, mat)))
+    return(func)
+
+
+def rotation3D(angle):
+    mat = array(
+        [
+            [cos(angle), -sin(angle), 0.],
+            [sin(angle), cos(angle), 0.],
+            [0., 0., 1.]])
+
+    def func(xx):
+        return(dot(xx, mat))
+    return(func)
+
+
+def translation(vec):
+    def trans(x):
+        return([x[0] + vec[0], x[1] + vec[1]])
+
+    def func(x):
+        return(array(list(map(trans, x))))
+    return(func)
+
+
+def trim(p1, p2, p3, p4):
+    a1 = array(p1)
+    a2 = array(p2)
+    a3 = array(p3)
+    a4 = array(p4)
+    if all(a1 == a2) or all(a3 == a4):
+        if all(a1 == a3):
+            return(a1)
+        else:
+            return(False)
+    elif all(a1 == a3):
+        if all(a2 == a4):
+            return((a1 + a2) / 2)
+        else:
+            return(a1)
+    elif all(a1 == a4):
+        if all(a2 == a3):
+            return((a1 + a2) / 2)
+        else:
+            return(a1)
+    elif all(a2 == a3) or all(a2 == a4):
+        return(p2)
+    try:
+        g, h = solve(transpose([-a2 + a1, a4 - a3]), a1 - a3)
+    except Exception as e:
+        print(e)
+        return(False)
+    else:
+        if 0. < g < 1. and 0. < h < 1.:
+            return(a1 + g * (a2 - a1))
+        else:
+            return(False)
+
+
+def trimfunc(l1, l2):
+    ik = 0
+    i0 = array(l1[0])
+    for i in array(l1[1:]):
+        jk = 0
+        j0 = array(l2[0])
+        for j in array(l2[1:]):
+            s = trim(j0, j, i0, i)
+            if isinstance(s, ndarray):
+                if ik == 0:
+                    l1 = [l1[0]]
+                else:
+                    l1 = l1[:ik]
+                if jk == 0:
+                    l2 == [l2[0]]
+                else:
+                    l2 = l2[jk::-1]
+                return([vstack([l1, [s]]), vstack([[s], l2])])
+            j0 = j
+            jk += 1
+        i0 = i
+        ik += 1
+    return(False)
+
+
+def diff_norm(vec1, vec2):
+    vec = array(vec2) - array(vec1)
+    return norm(vec)
+
+
+def nearestpts(evolv, underc):
+    ik = 0
+    iout = 0
+    jout = 0
+    outmin = 1000.
+    for i in array(evolv[1:]):
+        jk = 0
+        for j in array(underc[1:]):
+            l = diff_norm(i, j)
+            if l < outmin:
+                re = diff_norm(i, [0, 0])
+                ru = diff_norm(j, [0, 0])
+                if re > ru:
+                    outmin = l
+                    iout, jout = [ik, jk]
+            jk += 1
+        ik += 1
+    return([vstack([underc[:jout], evolv[iout]]), evolv[iout:]])
+
+
+def intersection_line_circle(p1, p2, r):
+    """return the intersection point of a line from p1 to p2 and a sphere of radius 1 and 
+    midpoint 0,0,0"""
+    d = p2 - p1
+    d /= norm(d)
+    p_half = d.dot(p1)
+    q = p1.dot(p1) - r ** 2
+    t = -p_half + sqrt(p_half ** 2 - q)
+    return p1 + d * t
+
+
+def arc_from_points_and_center(p_1, p_2, m):
+    """return 3 points (x1, x12, x2) which can be used to create the arc"""
+    r = (norm(p_1 - m) + norm(p_2 - m)) / 2
+    p_12l = (p_1 + p_2) / 2
+    v = p_12l - m
+    v /= norm(v)
+    p_12 = m + v * r
+    return (p_1, p_12, p_2)
+
+    
--- a/pygears/bevel_tooth.py
+++ b/pygears/bevel_tooth.py
@@ -0,0 +1,139 @@
+# -*- coding: utf-8 -*-
+# ***************************************************************************
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+from __future__ import division
+from __future__ import division
+from numpy import cos, sin, tan, arccos, arctan, pi, array, linspace, transpose, vstack, sqrt
+from ._functions import rotation3D, reflection3D, intersection_line_circle
+
+
+class BevelTooth(object):
+    def __init__(self, pressure_angle=70 * pi / 180, pitch_angle=pi / 4, clearance=0.1,
+                 z=21, backlash=0.00, module=0.25):
+        self.pressure_angle = pressure_angle
+        self.pitch_angle = pitch_angle
+        self.z = z
+        self.clearance = clearance
+        self.backlash = backlash
+        self.module = module
+
+        self.involute_end = arccos(
+            1 / sqrt(2) * sqrt((42. + 16.*cos(2.*self.pressure_angle) +
+                                6.*cos(4.*self.pressure_angle) + cos(4.*self.pressure_angle - 4.*self.pitch_angle) - 8.*cos(2.*self.pressure_angle - 2.*self.pitch_angle) -
+                                4.*cos(4.*self.pressure_angle - 2.*self.pitch_angle) + 24.*cos(2.*self.pitch_angle) - 2.*cos(4.*self.pitch_angle) -
+                                8.*cos(2.*(self.pressure_angle + self.pitch_angle)) + cos(4.*(self.pressure_angle + self.pitch_angle)) -
+                                4.*cos(4.*self.pressure_angle + 2.*self.pitch_angle) + 24.*cos((4.*sin(self.pitch_angle))/self.z) +
+                                4.*cos(2.*self.pressure_angle - (4.*sin(self.pitch_angle))/self.z) + 4.*cos(2.*self.pressure_angle -
+                                                                                                            4.*self.pitch_angle - (4.*sin(self.pitch_angle))/self.z) - 8.*cos(2.*self.pressure_angle - 2.*self.pitch_angle -
+                                                                                                                                                                              (4.*sin(self.pitch_angle))/self.z) + 24.*cos(4.*(self.pitch_angle + sin(self.pitch_angle)/self.z)) -
+                                8.*cos(2.*(self.pressure_angle + self.pitch_angle + (2.*sin(self.pitch_angle))/self.z)) + 4.*cos(2.*self.pressure_angle +
+                                                                                                                                 (4.*sin(self.pitch_angle))/self.z) + 16.*cos(2.*self.pitch_angle + (4.*sin(self.pitch_angle))/self.z) +
+                                4.*cos(2.*self.pressure_angle + 4.*self.pitch_angle + (4.*sin(self.pitch_angle))/self.z) + 32.*abs(cos(self.pitch_angle +
+                                                                                                                                       (2.*sin(self.pitch_angle))/self.z))*cos(self.pressure_angle)*sqrt(4.*cos(2.*self.pressure_angle) -
+                                                                                                                                                                                                         2.*(-2. + cos(2.*self.pressure_angle - 2.*self.pitch_angle) - 2.*cos(2.*self.pitch_angle) + cos(2.*(self.pressure_angle + self.pitch_angle)) +
+                                                                                                                                                                                                             4.*cos(2.*self.pitch_angle + (4.*sin(self.pitch_angle))/self.z)))*sin(2.*self.pitch_angle))/(-6. - 2.*cos(2.*self.pressure_angle) +
+                                                                                                                                                                                                                                                                                                          cos(2.*self.pressure_angle - 2.*self.pitch_angle) - 2.*cos(2.*self.pitch_angle) + cos(2.*(self.pressure_angle + self.pitch_angle)))**2))
+
+        self.involute_start = -pi/2. + \
+            arctan(1/tan(self.pitch_angle)*1/cos(self.pressure_angle))
+        self.involute_start_radius = self.get_radius(self.involute_start)
+        self.r_f = sin(self.pitch_angle - sin(pitch_angle) * 2 /
+                       self.z) - self.clearance * sin(self.pitch_angle)
+        self.z_f = cos(self.pitch_angle - sin(pitch_angle) * 2 / self.z)
+        self.add_foot = True
+
+    def involute_function_x(self):
+        def func(s):
+            return((
+                -(cos(s*1/sin(self.pressure_angle)*1/sin(self.pitch_angle))*sin(self.pressure_angle)*sin(s)) +
+                (cos(s)*sin(self.pitch_angle) + cos(self.pressure_angle)*cos(self.pitch_angle)*sin(s)) *
+                sin(s*1/sin(self.pressure_angle)*1/sin(self.pitch_angle))))
+        return(func)
+
+    def involute_function_y(self):
+        def func(s):
+            return((
+                cos(s*1/sin(self.pressure_angle)*1/sin(self.pitch_angle))*(cos(s)*sin(self.pitch_angle) +
+                                                                           cos(self.pressure_angle)*cos(self.pitch_angle)*sin(s)) + sin(self.pressure_angle)*sin(s) *
+                sin(s*1/sin(self.pressure_angle)*1/sin(self.pitch_angle))))
+        return(func)
+
+    def involute_function_z(self):
+        def func(s):
+            return((
+                cos(self.pitch_angle)*cos(s) - cos(self.pressure_angle)*sin(self.pitch_angle)*sin(s)))
+        return(func)
+
+    def get_radius(self, s):
+        x = self.involute_function_x()
+        y = self.involute_function_y()
+        rx = x(s)
+        ry = y(s)
+        return(sqrt(rx**2 + ry**2))
+
+    def involute_points(self, num=10):
+        pts = linspace(self.involute_start, self.involute_end, num=num)
+        fx = self.involute_function_x()
+        x = array(list(map(fx, pts)))
+        fy = self.involute_function_y()
+        y = array(list(map(fy, pts)))
+        fz = self.involute_function_z()
+        z = array(list(map(fz, pts)))
+        xyz = transpose(array([x, y, z]))
+        # conical projection to z=1
+        xy = [[i[0] / i[2], i[1] / i[2]] for i in xyz]
+        xy = array([[0, 0]] + xy)
+
+        r_cut = self.r_f / self.z_f
+        for i, point in enumerate(xy[1:]):
+            if point.dot(point) >= r_cut ** 2:
+                break
+        if i > 0:
+            self.add_foot = False
+        intersection_point = intersection_line_circle(xy[i], point, r_cut)
+        xy = array([intersection_point] + list(xy[i+1:]))
+        xyz = [[p[0], p[1], 1] for p in xy]
+        backlash_rot = rotation3D(self.backlash / 4)
+        xyz = backlash_rot(xyz)
+        return(xyz)
+
+    def points(self, num=10):
+        pts = self.involute_points(num=num)
+        rot = rotation3D(-pi/self.z/2)
+        pts = rot(pts)
+        ref = reflection3D(pi/2)
+        pts1 = ref(pts)[::-1]
+        if self.add_foot:
+            return([
+                array([pts[0], pts[1]]),
+                array(pts[1:]),
+                array([pts[-1], pts1[0]]),
+                array(pts1[:-1]),
+                array([pts1[-2], pts1[-1]])
+            ])
+        else:
+            return([pts, array([pts[-1], pts1[0]]), pts1])
+
+    def _update(self):
+        self.__init__(z=self.z, clearance=self.clearance,
+                      pressure_angle=self.pressure_angle,
+                      pitch_angle=self.pitch_angle,
+                      backlash=self.backlash, module=self.module)
--- a/pygears/computation.py
+++ b/pygears/computation.py
@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+# ***************************************************************************
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+import numpy as np
+from scipy import optimize as opt
+
+
+def compute_shifted_gears(m, alpha, t1, t2, x1, x2):
+    """Summary
+
+    Args:
+        m (float): common module of both gears [length]
+        alpha (float): pressure-angle [rad]
+        t1 (int): number of teeth of gear1
+        t2 (int): number of teeth of gear2
+        x1 (float): relative profile-shift of gear1
+        x2 (float): relative profile-shift of gear2
+
+    Returns:
+        (float, float): distance between gears [length], pressure angle of the assembly [rad]
+    """
+    def inv(x): return np.tan(x) - x
+    inv_alpha_w = inv(alpha) + 2 * np.tan(alpha) * (x1 + x2) / (t1 + t2)
+
+    def root_inv(x): return inv(x) - inv_alpha_w
+    alpha_w = opt.fsolve(root_inv, 0.)
+    dist = m * (t1 + t2) / 2 * np.cos(alpha) / np.cos(alpha_w)
+    return dist, alpha_w
--- a/pygears/cycloid_tooth.py
+++ b/pygears/cycloid_tooth.py
@@ -0,0 +1,108 @@
+# -*- coding: utf-8 -*-
+# ***************************************************************************
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+from __future__ import division
+from numpy import cos, sin, arccos, pi, array, linspace, transpose, vstack
+from ._functions import rotation, reflection
+
+
+class CycloidTooth():
+    def __init__(self, z1=5, z2=5, z=14, m=5, clearance=0.12, backlash=0.00, head=0.0):
+        self.m = m
+        self.z = z
+        self.clearance = clearance
+        self.head = head
+        self.backlash = backlash
+        self.z1 = z1
+        self.z2 = z2
+        self._calc_gear_factors()
+
+    def _calc_gear_factors(self):
+        self.d1 = self.z1 * self.m
+        self.d2 = self.z2 * self.m
+        self.phi = self.m * pi
+        self.d = self.z * self.m
+        self.da = self.d + 2*self.m + self.head * self.m
+        self.di = self.d - 2*self.m - self.clearance * self.m
+        self.phipart = 2 * pi / self.z
+
+    def epicycloid_x(self):
+        def func(t):
+            return(((self.d2 + self.d) * cos(t))/2. - (self.d2 * cos((1 + self.d / self.d2) * t))/2.)
+        return(func)
+
+    def epicycloid_y(self):
+        def func(t):
+            return(((self.d2 + self.d) * sin(t))/2. - (self.d2 * sin((1 + self.d / self.d2) * t))/2.)
+        return(func)
+
+    def hypocycloid_x(self):
+        def func(t):
+            return((self.d - self.d1)*cos(t)/2 + self.d1/2 * cos((self.d / self.d1 - 1) * t))
+        return(func)
+
+    def hypocycloid_y(self):
+        def func(t):
+            return((self.d - self.d1)*sin(t)/2 - self.d1/2 * sin((self.d/self.d1 - 1)*t))
+        return(func)
+
+    def inner_end(self):
+        return(
+            -((self.d1*arccos((2*self.d1**2 - self.di**2 -
+                               2*self.d1*self.d + self.d**2)/(2.*self.d1 *
+                                                              (self.d1 - self.d))))/self.d)
+        )
+
+    def outer_end(self):
+        return(
+            (self.d2*arccos((2*self.d2**2 - self.da**2 +
+                             2*self.d2*self.d + self.d**2) /
+                            (2.*self.d2*(self.d2 + self.d))))/self.d
+        )
+
+    def points(self, num=10):
+
+        inner_x = self.hypocycloid_x()
+        inner_y = self.hypocycloid_y()
+        outer_x = self.epicycloid_x()
+        outer_y = self.epicycloid_y()
+        t_inner_end = self.inner_end()
+        t_outer_end = self.outer_end()
+        t_vals_outer = linspace(0, t_outer_end, num)
+        t_vals_inner = linspace(t_inner_end, 0, num)
+        pts_outer_x = list(map(outer_x, t_vals_outer))
+        pts_outer_y = list(map(outer_y, t_vals_outer))
+        pts_inner_x = list(map(inner_x, t_vals_inner))
+        pts_inner_y = list(map(inner_y, t_vals_inner))
+        pts_outer = transpose([pts_outer_x, pts_outer_y])
+        pts_inner = transpose([pts_inner_x, pts_inner_y])
+        pts1 = vstack([pts_inner[:-2], pts_outer])
+        rot = rotation(self.phipart / 4 - self.backlash)
+        pts1 = rot(pts1)
+        ref = reflection(0.)
+        pts2 = ref(pts1)[::-1]
+        one_tooth = [pts1, array([pts1[-1], pts2[0]]), pts2]
+        return(one_tooth)
+
+    def _update(self):
+        self.__init__(m=self.m, z=self.z, z1=self.z1, z2=self.z2,
+                      clearance=self.clearance, backlash=self.backlash, head=self.head)
+
--- a/pygears/involute_tooth.py
+++ b/pygears/involute_tooth.py
@@ -0,0 +1,240 @@
+# -*- coding: utf-8 -*-
+# ***************************************************************************
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+from __future__ import division
+from numpy import tan, cos, sin, sqrt, arctan, pi, array, linspace, transpose, vstack, ndarray
+from ._functions import nearestpts, rotation, reflection, trimfunc, diff_norm, translation
+
+
+class InvoluteTooth():
+    def __init__(self, m=5, z=15, pressure_angle=20 * pi / 180., clearance=0.12, shift=0.5, beta=0.,
+                 undercut=False, backlash=0.00, head=0.00, properties_from_tool=False):
+        self.pressure_angle = pressure_angle
+        self.beta = beta
+        self.m_n = m
+        self.z = z
+        self.undercut = undercut
+        self.shift = shift
+        self.clearance = clearance
+        self.backlash = backlash
+        self.head = head        # factor, rename!!!
+        self.properties_from_tool = properties_from_tool
+        self._calc_gear_factors()
+
+    def _calc_gear_factors(self):
+        if self.properties_from_tool:
+            self.pressure_angle_t = arctan(
+                tan(self.pressure_angle) / cos(self.beta))
+            self.m = self.m_n / cos(self.beta)
+        else:
+            self.pressure_angle_t = self.pressure_angle
+            self.m = self.m_n
+
+        self.pitch = self.m * pi
+        self.c = self.clearance * self.m_n
+        self.midpoint = [0., 0.]
+        self.d = self.z * self.m
+        self.dw = self.m * self.z
+        self.da = self.dw + 2. * self.m_n + 2. * \
+            (self.shift + self.head) * self.m_n
+        self.df = self.dw - 2. * self.m_n - \
+            2 * self.c + 2. * self.shift * self.m_n
+        self.dg = self.d * cos(self.pressure_angle_t)
+        self.phipart = 2 * pi / self.z
+
+        self.undercut_end = sqrt(-self.df ** 2 + self.da ** 2) / self.da
+        self.undercut_rot = (-self.df / self.dw * tan(arctan((2 * ((self.m * pi) / 4. -
+                                                                   (self.c + self.m_n) * tan(self.pressure_angle_t))) / self.df)))
+
+        self.involute_end = sqrt(self.da ** 2 - self.dg ** 2) / self.dg
+        self.involute_rot1 = sqrt(-self.dg ** 2 + (self.dw) ** 2) / self.dg - arctan(
+            sqrt(-self.dg ** 2 + (self.dw) ** 2) / self.dg)
+        self.involute_rot2 = self.m / \
+            (self.d) * (pi / 2 + 2 * self.shift * tan(self.pressure_angle_t))
+        self.involute_rot2 = 1 / self.z * \
+            (pi / 2 + 2 * self.shift * tan(self.pressure_angle_t))
+        self.involute_rot = self.involute_rot1 + self.involute_rot2
+        self.involute_start = 0.
+        if self.dg <= self.df:
+            self.involute_start = sqrt(self.df ** 2 - self.dg ** 2) / self.dg
+
+    def undercut_points(self, num=10):
+        pts = linspace(0, self.undercut_end, num=num)
+        fx = self.undercut_function_x()
+        x = array(list(map(fx, pts)))
+        fy = self.undercut_function_y()
+        y = array(list(map(fy, pts)))
+        xy = transpose([x, y])
+        rotate = rotation(
+            self.undercut_rot + self.phipart / 2 - self.backlash / 4)
+        xy = rotate(xy)
+        return(array(xy))
+
+    def involute_points(self, num=10):
+        pts = linspace(self.involute_start, self.involute_end, num=num)
+        fx = self.involute_function_x()
+        x = array(list(map(fx, pts)))
+        fy = self.involute_function_y()
+        y = array(list(map(fy, pts)))
+        rot = rotation(self.involute_rot - self.backlash / 4)
+        xy = rot(transpose(array([x, y])))
+        return(xy)
+
+    def points(self, num=10):
+        l1 = self.undercut_points(num=num)
+        l2 = self.involute_points(num=num)
+        s = trimfunc(l1, l2[::-1])
+        if self.undercut:
+            if isinstance(s, ndarray):
+                u1, e1 = s
+            else:
+                u1, e1 = nearestpts(l2, l1)
+        else:
+            u1 = False
+            if self.dg > self.df:
+                u1 = vstack(
+                    [[l2[0] * self.df / (diff_norm(l2[0], [0, 0]) * 2)], [l2[0]]])
+                e1 = l2
+            else:
+                e1 = l2
+
+        reflect = reflection(0)
+        e2 = reflect(e1)[::-1]
+        if isinstance(u1, bool):
+            one_tooth = [e1, [e1[-1], e2[0]], e2]
+        else:
+            u2 = reflect(u1)[::-1]
+            one_tooth = [u1, e1, [e1[-1], e2[0]], e2, u2]
+        return(one_tooth)
+
+    def gearfunc(self, x):
+        rot = rotation(2 * x / self.dw, self.midpoint)
+        return(rot)
+
+    def undercut_function_x(self):
+        def func(psi):
+            return(
+                cos(psi - (self.df * tan(psi)) / self.dw) * sqrt(self.df ** 2 / 4 +
+                                                                 (self.df ** 2 * tan(psi) ** 2) / 4.))
+        return(func)
+
+    def undercut_function_y(self):
+        def func(psi):
+            return(
+                sin(psi - (self.df * tan(psi)) / self.dw) * sqrt(self.df ** 2 / 4 +
+                                                                 (self.df ** 2 * tan(psi) ** 2) / 4.))
+        return(func)
+
+    def involute_function_x(self):
+        def func(phi):
+            return(self.dg / 2 * cos(phi) + phi * self.dg / 2 * sin(phi))
+        return(func)
+
+    def involute_function_y(self):
+        def func(phi):
+            return(self.dg / 2 * sin(phi) - phi * self.dg / 2 * cos(phi))
+        return(func)
+
+    def _update(self):
+        if not hasattr(self, "properties_from_tool"):
+            self.properties_from_tool = True
+        self._calc_gear_factors()
+
+
+class InvoluteRack(object):
+    def __init__(self, m=5, z=15, pressure_angle=20 * pi / 180., thickness=5, beta=0, head=0, clearance=0.25, 
+                 properties_from_tool=False, add_endings=False, simplified=False):
+        self.pressure_angle = pressure_angle
+        self.thickness = thickness
+        self.m = m
+        self.z = z
+        self.beta = beta
+        self.head = head
+        self.clearance = clearance
+        self.properties_from_tool = properties_from_tool
+        self.add_endings = add_endings
+        self.simplified = simplified
+
+
+# this is not good. Find better way to stay backward compatible -> versions
+    def _update(self):
+        if not hasattr(self, "add_endings"):
+            self.add_endings = True
+        if not hasattr(self, "simplified"):
+            self.simplified = False
+
+    def points(self, num=10):
+        import copy
+        m, m_n, pitch, pressure_angle_t = self.compute_properties()
+
+        a = (2 + self.head + self.clearance) * m_n * tan(pressure_angle_t)
+        b = pitch / 4 - (1 + self.head) * m_n * tan(pressure_angle_t)
+        tooth = [
+            [-m_n * (1 + self.clearance), -a - b],
+            [m_n * (1 + self.head), -b],
+            [m_n * (1 + self.head), b],
+            [-m_n * (1 + self.clearance), a + b]
+        ]
+        teeth = [tooth]
+        trans = translation([0., pitch, 0.])
+        for i in range(self.z - 1):
+            if self.simplified and i > 3 and i < (self.z - 6):
+                tooth = trans(tooth).tolist()
+            else:
+                tooth = trans(tooth).tolist()
+                teeth.append(copy.deepcopy(tooth))
+                if self.simplified and (i == 3):
+                    teeth[-1].pop()
+                    teeth[-1].pop()
+                    teeth[-1][-1][0] = 0
+                    teeth[-1][-1][1] -= a / 2 
+                if self.simplified and (i == self.z - 6):
+                    teeth[-1].pop(0)
+                    teeth[-1].pop(0)
+                    teeth[-1][0][0] = 0
+                    teeth[-1][0][1] += a / 2
+
+        teeth = array([v for t in teeth for v in t])  # flattening
+        if self.add_endings:
+            ext1 = teeth[0] + array([0., a + b - pitch / 2])
+            ext2 = teeth[-1] - array([0., a + b - pitch / 2])
+            teeth = [ext1.tolist(), ext1.tolist()] + teeth.tolist() + [ext2.tolist(), ext2.tolist()]
+        else:
+            teeth = [teeth[0].tolist()] + teeth.tolist() + [teeth[-1].tolist()]
+        #teeth.append(list(teeth[-1]))
+        teeth[0][0] -= self.thickness
+        #teeth.append(list(teeth[0]))
+        teeth[-1][0] -= self.thickness
+        teeth.append(teeth[0])
+        return array(teeth)
+
+    def compute_properties(self):
+        if self.properties_from_tool:
+            pressure_angle_t = arctan(tan(self.pressure_angle) / cos(self.beta))
+            m = self.m / cos(self.beta)
+            m_n = self.m
+        else:
+            pressure_angle_t = self.pressure_angle
+            m = self.m
+            m_n  = self.m
+
+        pitch = m * pi
+        return m, m_n, pitch, pressure_angle_t
--- a/pygears/profile.py
+++ b/pygears/profile.py
@@ -0,0 +1,39 @@
+import numpy as np
+from .involute_tooth import InvoluteTooth, InvoluteRack
+from .bevel_tooth import BevelTooth
+from .cycloid_tooth import CycloidTooth
+from ._functions import rotation, rotation3D
+
+
+class _GearProfile(object):
+    rot3D = False
+    def profile(self, num=10):
+        tooth = self.points(num=num)
+        tooth = [list(point) for wire in tooth for point in wire]
+        if self.rot3D:
+            rot = rotation3D( np.pi * 2 / self.z)
+        else:
+            rot = rotation(- np.pi * 2 / self.z)
+        profile = tooth
+        for i in range(self.z - 1):
+            tooth = rot(tooth).tolist()
+            profile = profile + tooth
+        profile.append(profile[0])
+        return np.array(profile)
+
+class InvoluteProfile(InvoluteTooth, _GearProfile):
+    pass
+
+class CycloidProfile(CycloidTooth, _GearProfile):
+    pass
+
+class BevelProfile(BevelTooth, _GearProfile):
+    rot3D = True
+
+class InvoluteRackProfile(InvoluteRack):
+    def profile(self):
+        return self.points()
+
+
+
+
--- a/setup.py
+++ b/setup.py
@@ -0,0 +1,15 @@
+from setuptools import setup
+from pygears import __version__
+
+setup(name='freecad.gears',
+      version=str(__version__),
+      packages=['freecad',
+                'freecad.gears',
+        		'pygears'],
+      maintainer="looooo",
+      maintainer_email="sppedflyer@gmail.com",
+      url="https://github.com/looooo/FCGear",
+      description="gears for FreeCAD",
+      install_requires=['numpy'],
+	  include_package_data=True
+)
Author	SHA1	Message	Date
lorenz	e1c80bd963	add spicy dependency	2022-06-11 18:25:41 +02:00
lorenz	109df352a9	InvoluteGearRack: properties_from_tool default = False	2022-05-03 14:48:05 +02:00
looooo	165f1a0aea	add package.xml	2022-02-24 08:39:28 +01:00
Jonas Bähr	8258477645	add head parameter for cycloide gear This is a backport of commit `9ddd493b` from develop, with two changes: - unrelated changes have not been back ported - backwards compatibility was added Note that the actual usage of the head value in pygear is wrong, though: As it is added to the diameter (not the radius) it should have been added twice. However, as the clearance suffers from the same bug, I choose to stay consistent. A fix should address both, head and clearance, but this is out of scope here.	2022-01-04 20:08:35 +01:00
Jonas Bähr	6ce203ea8f	Make gear creation "undoable" Right now, the tool tip is used as transaction name, which matches the wording "Create a new sketch". There doesn't seem to be consistency though FreeCAD's other workbenches, though.	2021-10-23 01:43:24 +02:00
Jonas Bähr	69ff30d65e	gitignore VIM swap files	2021-10-23 01:43:24 +02:00
lorenz	3c86d12dc7	fix lgtm allert	2021-09-30 18:12:29 +02:00
Jonas Bähr	d489dfb841	Fix crown gear preview mode in PartDesign Bodies Previously, the `preview_mode` of the crown gear returned a compound of the base and the cut-outs. This caused problems in PD::Bodies where a single solid is requried. The solution in this commit changes the preview_mode to only output the base, not generating the cutout shapes at all. This is consistent with the involute gears having "simple=true" and saves again 0.5 Seconds processsing time on my system using defaults (15 teeth, 4 loft profiles). In addition, "preview = false" is also speed up by first collecting all cut-outs, and then passing them all at once to a single cut operation. This reduced the cutting time from 3.0 Seconds to 2.2 Seconds here. So preview now generats the shape immediately (0.0008s vs 0.5s) and the actual crown is generated in 2.7s instead of 3.5s (again, using the defaut parameters, measued via Python's time.perf_counter).	2021-07-25 16:33:58 +02:00
Jonas Bähr	1b19d16264	Extend the "additiveness" to all gears when used in PD:Bodies There are still some issues when the generated Shape is not a solid, e.g. in the preview mode of the Crown Gear.	2021-07-25 16:33:58 +02:00
Jonas Bähr	d5e12ef116	First proof of concept of "additive gears" in PartDesign bodies In this PoC only the involute gears work, and there is still a lot of cleanup pending. What does work, however, is that those gears now play nicely with PartDesign's concept of stacking features onto each other, i.e. that the result of a feature is the fusion of all previous ones. Special Thanks goes to DeepSOIC for his tutorial in the forum at [1] as well as this Part-o-Matic which showed me how this works in real live [2] [1]: https://forum.freecadweb.org/viewtopic.php?f=22&t=21097#p163340 [2]: https://github.com/DeepSOIC/Part-o-magic/blob/master/PartOMagic/Features/PartDesign/PDShapeFeature.py	2021-07-25 16:33:58 +02:00
lorenz	2c07938e0d	Remove Attachment deprecation warning for version >=0.19	2021-07-05 00:01:02 +02:00
looooo	6c6176b089	conditional to supress eprecation warning in 0.20	2021-07-04 21:54:00 +02:00
Jonas Bähr	7934657993	Make all gears attachable The logic for attaching, repositioning and backward-compatibility check was moved to the already existing base class.	2021-07-04 21:53:11 +02:00
Jonas Bähr	bc285f1ad4	Make Involute Gears Attachable Heavy-lifting done using the "Part::AttachExtensionPython" extension cf. https://wiki.freecadweb.org/Scripted_objects_with_attachment Objects greated with earlier versions are automatically updated on recompute. Other types of gears not touched yet.	2021-07-04 21:53:11 +02:00
Jonas Bähr	765603dc1e	Make the new properties backward compatibile By checking whether the additional properties are available, gears created with earlier versions can still be manipulated in FreeCAD. And when first touching an older gear, it gets updated with the new additional properties.	2021-06-11 20:21:43 +02:00
Jonas Bähr	4c8d1e672b	Expose outside and root diameter to freecad The values are already calculated by pygear and this change make them available as properties in FreeCAD. The naming should be in line with the rest of fcgear's nomenclature, derived from https://qtcgears.com/tools/catalogs/PDF_Q420/Tech.pdf	2021-06-11 20:21:43 +02:00
lorenz	ffe86c85e8	Warnung -> PrintWarning	2021-02-17 13:40:45 +01:00
lorenz	ef4622e015	importError->ImportError	2021-02-17 12:23:24 +01:00
bevin	8b0d8e999e	fix cam rotation fails for odd number teeth	2020-11-19 11:23:22 +01:00
bevin	ee40235fdc	allow center hole radius to be zero, and bugfix for previous patch	2020-11-19 11:23:22 +01:00
bevin	aa3fa561a1	Update features.py pin circle diameter actually used as radius in calculation	2020-11-15 22:02:09 +01:00
looooo	7b2fb1b429	increase version	2020-11-12 10:11:05 +01:00
looooo	f9feb65c70	add version-property to gears, define bevel-gear module at bigger end	2020-11-12 10:10:46 +01:00
looooo	ccdfad4a90	crowngear: properties: preview_edit -> preview_mode	2020-10-13 15:14:35 +02:00
looooo	e3df129b2f	crowngear: property construct -> preview_mode	2020-10-13 15:08:31 +02:00
lorenz	830eb5e9f0	crown-gear: rename property construct ->editing-preview	2020-10-13 15:04:27 +02:00
looooo	5a9e17b29b	wormgear: add property for reversed helical extrusion	2020-10-04 21:59:56 +02:00
looooo	6172eae385	pygears: fix profile	2020-09-30 17:26:52 +02:00
looooo	16b4c47402	minimal fix	2020-09-22 14:43:25 +02:00
Zheng, Lei	ffbbcd897f	Fix adding object to PartDesign::Body	2020-09-22 14:37:16 +02:00
looooo	5e1b40834f	grouping properties	2020-09-09 11:56:44 +02:00
looooo	b8e9fdcb93	fix typo	2020-09-09 11:50:55 +02:00
looooo	ef5c72e926	involute-gear: property docs	2020-09-09 11:17:40 +02:00
lorenz	4f94009f78	Update features.py	2020-09-09 09:21:33 +02:00
looooo	af0670e11d	typo: cycloide->cycloid	2020-09-03 11:26:33 +02:00
looooo	95f0ed76ab	typo: cycloide -> cycloid	2020-09-03 11:20:58 +02:00
looooo	081aa5fcea	HypoCycloidGear: use bsplines	2020-09-03 11:10:49 +02:00
bevin	2b3ece4697	when all shapes are invisible, keep old shape	2020-09-02 17:23:51 +02:00
bevin	3875028685	bugfix and optimization	2020-09-02 17:23:51 +02:00
bevin	ce46429f6a	overall fine now	2020-09-02 17:23:51 +02:00
bevin	933d962dc6	WIP for hypocycloid disk creation	2020-09-02 17:23:51 +02:00
looooo	beb484ea64	pep8 function	2020-08-30 09:37:42 +02:00
looooo	19a826cf1b	remove gui commands if no gui is available	2020-08-30 04:49:12 +02:00
looooo	4d16094b25	typo: rename example latern -> lantern	2020-08-24 22:23:44 +02:00
lorenz	5a2c4006d0	Update README.md	2020-08-24 22:22:14 +02:00
looooo	47dcf319f3	cosmetics	2020-08-24 21:51:42 +02:00
looooo	3e996f7bfa	fix typo: latern-gear -> lantern-gear	2020-08-24 19:13:20 +02:00
looooo	242a48c980	modify image-size	2020-08-14 22:20:03 +02:00
looooo	78cb8f15cd	docs: add images	2020-08-14 22:18:16 +02:00
looooo	8c7f3d3217	docs: add images for crown-gear and worm-gear	2020-08-14 17:05:00 +02:00
looooo	3c9da544f3	update readme	2020-08-06 22:53:13 +02:00
looooo	8776062f18	Merge branch 'master' of https://github.com/looooo/freecad.gears	2020-08-05 10:09:59 +02:00
looooo	db46e79734	icons and names	2020-08-05 10:09:45 +02:00
lorenz	2827d1dbd9	Update README.md	2020-08-05 09:58:57 +02:00
looooo	bc075eb6ff	examples: smaller images	2020-08-05 09:57:59 +02:00
looooo	c8ce13b170	readme: add bevel-gear image	2020-08-04 21:39:22 +02:00
looooo	5a9349a5a8	bevel-gear: m -> module	2020-08-04 19:55:23 +02:00
looooo	03f80a288e	numpy deprecration warning	2020-08-04 19:22:25 +02:00
looooo	2a55d11f7b	use scipy to find intersection	2020-07-18 14:01:20 +02:00
looooo	8034dab2c7	add timing-gear example	2020-07-17 21:57:29 +02:00
looooo	87029ac317	fix crown gear	2020-07-17 12:27:07 +02:00
looooo	d634fc9085	Merge branch 'master' of https://github.com/looooo/freecad.gears	2020-07-17 12:21:43 +02:00
looooo	c60737af20	docs: add latern-gear theory	2020-07-17 12:21:21 +02:00
lorenz	83cbc800fd	Update README.md	2020-07-17 10:51:27 +02:00
lorenz	ee96e6efa9	remove screenshots	2020-07-17 10:47:34 +02:00
lorenz	f89214dad4	remove unused variables	2020-07-17 10:46:40 +02:00
lorenz	9bb4c72dd3	Update README.md	2020-07-17 08:15:57 +02:00
looooo	b4200f9953	examples: rename image: latern-gear	2020-07-17 08:15:00 +02:00
looooo	ecca07dcad	add latern-gear	2020-07-17 08:11:21 +02:00
looooo	3e19199553	timig-gear	2020-07-15 23:08:26 +02:00
looooo	9757de0c58	add timing gears	2020-07-15 22:13:55 +02:00
looooo	90dfc1c7dd	update to gpl3 license, as discussed in #44	2020-06-26 10:19:29 +02:00
looooo	1dd003c61e	crown-gear: give hint for construct-property	2020-06-24 10:57:31 +02:00
looooo	98be52709c	fix typos	2020-06-23 07:40:35 +02:00
looooo	1086bde4b1	worm-gear: fix clearence and head computation	2020-06-23 07:35:26 +02:00
looooo	ca3b8d3a5e	worm-gear: add parameter clearence, head	2020-06-23 06:38:02 +02:00
looooo	0a19329a2d	put gears into container if a container is active	2020-06-20 10:02:43 +02:00
looooo	23bd463fdc	update examples	2020-06-20 08:46:09 +02:00
looooo	68577b4379	gearWorkbench -> GearWorkbench	2020-06-18 10:55:34 +02:00
lorenz	a264bcacf6	fix failing undercut fixes https://github.com/looooo/freecad.gears/issues/48	2020-06-04 10:42:39 +02:00
looooo	1a35948243	lgtm cleaning	2020-04-25 09:10:58 +02:00
looooo	8193f1ebce	involute gear: add parameter pitch + minimal fix for rack	2020-04-08 17:57:39 +02:00
looooo	84f9a16af7	Merge branch 'master' of https://github.com/looooo/freecad.gears	2020-04-07 15:04:23 +02:00
looooo	07c6d418e5	update version	2020-04-07 15:04:08 +02:00
looooo	7429c61a79	add pygears/profile	2020-04-07 15:03:46 +02:00
luz.paz	be13f86136	Format MenuText and ToolTip	2020-03-10 06:25:13 +01:00
luz.paz	56e63da607	Fix typos	2020-03-10 06:24:35 +01:00
luz.paz	f55961b543	README: reformat some markdown	2020-03-06 09:35:41 +01:00
luz.paz	938ff80380	README: Add LGTM badges ref: https://github.com/FreeCAD/FreeCAD-addons/issues/163	2020-03-06 09:35:25 +01:00
looooo	d2848a78a1	rack: small modifications	2020-02-26 12:54:20 +01:00
looooo	235817a086	backward-compatibility	2020-02-17 09:29:53 +01:00
looooo	0e50169000	delete plotting stuff	2020-02-10 11:15:09 +01:00
looooo	13e7b19cf0	add proprty for rack endings	2020-02-10 11:13:57 +01:00
looooo	3eea5eb8ca	involute-gear: make dw PropertyLength	2020-02-05 12:14:06 +01:00
looooo	95f6de16fb	rack: add property pitch (read-only), make length of rack match pitch x teeth	2020-02-05 11:12:33 +01:00
looooo	d84ead5cb7	involute rack: fix alpha_t	2020-02-04 12:38:18 +01:00
looooo	397c10fdf2	add property clearence and property_of_tool for involute gears	2020-02-04 10:25:35 +01:00
looooo	b2d8fa7fbf	add clearence to rack	2020-02-03 09:50:11 +01:00
lorenz	f77e2793ef	Update README.md	2020-01-30 14:21:29 +01:00
looooo	76d30e022e	fix pep8 errors	2020-01-05 23:58:01 +01:00
looooo	dddb6c5bc4	formating	2020-01-05 23:50:26 +01:00
looooo	175eac7475	delete __init__.py	2019-11-08 12:57:03 +01:00
looooo	f989301ed9	update worm icon	2019-10-06 09:57:23 +02:00
looooo	0f3c859837	add prototype for worm gear	2019-09-28 13:24:54 +02:00
lorenz	9bf77e9347	add support	2019-09-28 13:23:44 +02:00
lorenz	7e958ee02b	Update README.md	2019-09-16 16:11:50 +02:00
luz.paz	0a95618e05	Typo fix and hyperlink	2019-09-16 16:11:50 +02:00
luz.paz	6a0776c764	README: add Addon Manager install method + clarifications	2019-09-16 16:11:50 +02:00
looooo	fe88e0aba3	Revert "Add helical angle to distance calculator" This reverts commit `e4d6955b0b`.	2019-09-07 21:20:46 +02:00
lorenz	77a61f7abf	roll-diameter -> pitch diameter	2019-09-07 20:45:44 +02:00
looooo	97f1bf5ece	add computed properties	2019-09-07 20:22:04 +02:00
lorenz	e4d6955b0b	Add helical angle to distance calculator	2019-09-05 08:06:10 +02:00
luz.paz	3923eb0d24	Fix typos	2019-08-13 07:45:07 +02:00
luz.paz	0e72001cf2	Added license detail: GPL 2.0	2019-08-11 08:50:10 +02:00
luz.paz	bd99f95ef3	Add license and added more elaborations	2019-08-11 08:50:10 +02:00
luz.paz	b5970131c4	README: Tweaks	2019-08-11 08:50:10 +02:00
looooo	eade914494	Merge branch 'master' of https://github.com/looooo/freecad.gears	2019-03-07 10:59:49 +01:00
looooo	2127e03a8d	update bevel-gear-example	2019-03-07 10:59:24 +01:00
lorenz	102df7bce1	Update README.md	2019-03-05 12:23:13 +01:00
looooo	49c8de36a2	add commands to console	2019-03-05 12:14:34 +01:00
lorenz	10160e8d52	add necesarry line to make namespace-package work	2018-12-17 23:38:24 +01:00
lorenz	925a1e7db2	Update setup.py	2018-11-08 20:44:28 +01:00
lorenz	0414269517	Update README.md	2018-07-06 18:23:44 +02:00
lo	7d08263965	some unnecessary landscape stuff	2018-07-05 16:41:51 +02:00
looooo	5976130c15	readme	2018-07-03 11:15:37 +02:00
looooo	913f3cd954	change install instruction	2018-07-03 10:50:04 +02:00
looooo	fc39fba219	change crown-gear default parameter height	2018-04-12 19:18:57 +02:00
looooo	95fda0e272	add gif	2018-03-27 10:06:09 +02:00
looooo	ae5c393b6f	gif	2018-03-27 10:05:20 +02:00
lo	2d803e15e5	simplify the simplified	2018-03-23 13:38:58 +01:00
lo	a2c6f96686	move bevel-gear - by default to z=0 plane - set "reset_origin" to false to get old behaviour	2018-03-20 20:26:54 +01:00
lo	45a44e42e4	readme	2018-03-16 23:57:14 +01:00
lo	c7bcbf3349	some examples	2018-03-16 23:54:10 +01:00
lo	02816ddb44	image again	2018-03-16 11:48:14 +01:00
lo	dec4e7736c	image	2018-03-16 11:47:29 +01:00
lo	739da7b534	spiral-gear	2018-03-16 11:45:16 +01:00
lo	19a0393385	make new-style-module	2018-03-14 19:04:02 +01:00
looooo	f316faa37f	1 != 2	2017-09-18 14:16:27 +02:00
looooo	534c3aaad8	added function to compute ax distance of shifted gears	2017-09-18 13:08:59 +02:00
looooo	255c77c1b2	crown gear, spiral gear	2017-09-06 11:09:19 +02:00
looooo	6096e15894	crown-gear + crown-gear docs	2017-09-02 15:34:20 +02:00
looooo	7530372a35	add icon for crown gear	2017-08-29 11:38:05 +02:00
looooo	795c166e69	add crown-gear (not yet working)	2017-08-28 20:13:24 +02:00
looooo	962c0e4ffe	involute-rack: add head parameter	2017-06-29 10:23:30 +02:00
lorenz	e419f55709	Merge pull request #16 from looooo/develop fix mirror problem	2017-06-28 11:16:22 +02:00
looooo	c70726a293	fix mirror problem	2017-06-28 11:14:10 +02:00
looooo	61b0d56ae4	use alternative approach to fuse the two solids of a double-helical-gear	2017-06-27 17:14:53 +02:00
looooo	4448f1f7e1	double helix rack	2017-06-27 11:44:05 +02:00
looooo	4b34073f28	add helical extrusion to cycloid gear	2017-06-27 09:09:48 +02:00
kcleung	38b03df09b	cleanup	2017-06-27 09:02:13 +02:00
kcleung	42ebf8b59b	fixed accidental translation of double helix, and height and position is always same as single helix now	2017-06-27 09:02:13 +02:00
kcleung	3aca091811	fixed height bug where single helix accidentally have height halved	2017-06-27 09:02:13 +02:00
looooo	941f480b0a	use compound for double helix	2017-06-26 06:59:41 +02:00
kcleung	1b3044f00c	fixed double height bug	2017-06-26 06:43:08 +02:00
kcleung	279da3e304	initial implementation of double helix for involute gear, though mirroring is hard coded to XY plane at Z=0, regardless of actual position and orientation of the gear. This issue is to be fixed in subsequent commits	2017-06-26 06:42:59 +02:00
looooo	c078b8f9f0	add reconstruction example	2017-05-29 07:57:54 +02:00
looooo	b604fe8ec8	simplify helical extrusion	2017-05-14 13:59:52 +02:00
looooo	37ebd2d59e	py3: map	2017-02-13 21:54:55 +01:00
lorenz	8d10fa7ff8	Update README.md	2017-02-13 21:54:55 +01:00
looooo	d739065008	added some possibilities to influence the involute-gear profile	2017-02-03 13:58:57 +01:00
looooo	db2c46f331	bevel fix	2016-09-08 17:16:08 +02:00
looooo	8464f37a73	occt7 updates	2016-09-08 16:54:43 +02:00
lorenz_l	9c6920af84	Merge branch 'master' of https://github.com/looooo/FCGear	2016-04-14 10:16:46 +02:00
lorenz_l	0610b41339	py3: returning objects where generators are involved give fatal untrackable errors	2016-04-14 10:15:32 +02:00
lorenz	66b5ca42bf	Merge pull request #3 from BPLRFE/master Update Readme.md	2016-04-09 22:52:02 +02:00
BPLRFE	c34b104a52	Update Readme.md Added installation instructions for Linux/Windows	2016-04-04 18:27:59 +02:00
looooo	e54cc4d8cf	fix <16 error	2016-02-08 20:13:44 +01:00
looooo	75f2189852	proper case naming proposal from http://forum.freecadweb.org/viewtopic.php?f=3&t=12878&start=30#p112465	2016-01-31 11:46:41 +01:00
looooo	d4104c30de	update to make it possible to use this workbench with older versions of freecad	2016-01-31 11:25:53 +01:00
looooo	b0a813c849	update bevel_gear symbol	2016-01-31 09:05:28 +01:00
looooo	fa16fce5e9	Update Readme and add new Icon from Jill Kitten http://forum.freecadweb.org/viewtopic.php?f=3&t=12878&start=30#p112376	2016-01-30 19:24:56 +01:00
looooo	fbf1dda6b5	python3 updates	2016-01-27 17:09:02 +01:00
looooo	6660e24676	Gui.Workbench accesable	2016-01-04 20:36:15 +01:00
looooo	9e10aa2f74	fix the problem with negative values for beta: http://forum.freecadweb.org/viewtopic.php?f=13&t=12819	2015-12-07 23:36:53 +01:00
looooo	e371d021a2	added symbol	2015-11-23 18:12:09 +01:00
looooo	57c69f91cf	update readme	2015-10-28 14:15:13 +01:00
looooo	ecbdfb9d14	changed directory structure	2015-10-28 14:13:22 +01:00
looooo	5f661cdce8	added bevel gear example	2015-10-25 13:35:45 +01:00
looooo	c6c8a23c9e	better naming	2015-10-24 19:09:11 +02:00
looooo	b6499ebd40	works now	2015-10-24 18:41:38 +02:00
looooo	894a283afc	scaled clearence	2015-10-24 18:38:36 +02:00
looooo	578855d6b2	alpha bug	2015-10-24 18:31:15 +02:00
looooo	cb17e3ca49	delete debug prints	2015-10-22 23:14:46 +02:00
looooo	a77861fd8f	update gear_wb: bevel_gear clearence	2015-10-22 23:11:45 +02:00
looooo	1972520677	update bevel	2015-10-22 23:01:31 +02:00