# -*- coding: utf-8 -*- # *************************************************************************** # * Copyright (c) 2019 sliptonic * # * * # * 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 PathScripts.PathGeom as PathGeom import PathScripts.PathThreadMilling as PathThreadMilling import math from PathTests.PathTestUtils import PathTestBase def radii(internal, major, minor, toolDia, toolCrest): """test radii function for simple testing""" return (minor, major) class TestPathThreadMilling(PathTestBase): """Test thread milling basics.""" def assertRadii(self, have, want): self.assertRoughly(have[0], want[0]) self.assertRoughly(have[1], want[1]) def assertList(self, have, want): self.assertEqual(len(have), len(want)) for i in range(len(have)): self.assertRoughly(have[i], want[i]) def test00(self): """Verify internal radii.""" self.assertRadii(PathThreadMilling.radiiInternal(20, 18, 2, 0), (8, 9.2)) self.assertRadii(PathThreadMilling.radiiInternal(20, 19, 2, 0), (8.5, 9.1)) def test01(self): """Verify internal radii with tool crest.""" self.assertRadii(PathThreadMilling.threadRadii(True, 20, 18, 2, 0.1), (8, 9.113397)) def test10(self): '''Verify internal thread passes.''' self.assertList(PathThreadMilling.threadPasses(1, radii, True, 10, 9, 0, 0), [10]) self.assertList(PathThreadMilling.threadPasses(2, radii, True, 10, 9, 0, 0), [9.707107, 10]) self.assertList(PathThreadMilling.threadPasses(5, radii, True, 10, 9, 0, 0), [9.447214, 9.632456, 9.774597, 9.894427, 10]) def test20(self): '''Verify external radii.''' self.assertRadii(PathThreadMilling.threadRadii(False, 20, 18, 2, 0), (11, 9.6)) self.assertRadii(PathThreadMilling.threadRadii(False, 20, 19, 2, 0), (11, 10.3)) def test21(self): '''Verify external radii with tool crest.''' self.assertRadii(PathThreadMilling.threadRadii(False, 20, 18, 2, 0.1), (11, 9.513397)) def test30(self): '''Verify external thread passes.''' self.assertList(PathThreadMilling.threadPasses(1, radii, False, 10, 9, 0, 0), [9]) self.assertList(PathThreadMilling.threadPasses(2, radii, False, 10, 9, 0, 0), [9.292893, 9]) self.assertList(PathThreadMilling.threadPasses(5, radii, False, 10, 9, 0, 0), [9.552786, 9.367544, 9.225403, 9.105573, 9]) def test40(self): '''Verify thread commands for a single thread''' center = FreeCAD.Vector() cmd = 'G2' zStart = 0 zFinal = 1 pitch = 1 radius = 3 leadInOut = False elevator = 2 path, start = PathThreadMilling.threadCommands(center, cmd, zStart, zFinal, pitch, radius, leadInOut, elevator, None) print(start) gcode = [ 'G0 X0.000000 Y2.000000', 'G0 Z0.000000', 'G1 Y3.000000', 'G2 J-3.000000 Y-3.000000 Z0.500000', 'G2 J3.000000 Y3.000000 Z1.000000', 'G1 X0.000000 Y2.000000', ] self.assertEqual([p.toGCode() for p in path], gcode) self.assertCoincide(start, FreeCAD.Vector(0, 2, 0)) def test41(self): '''Verify thread commands for a thwo threads''' center = FreeCAD.Vector() cmd = 'G2' zStart = 0 zFinal = 2 pitch = 1 radius = 3 leadInOut = False elevator = 2 path, start = PathThreadMilling.threadCommands(center, cmd, zStart, zFinal, pitch, radius, leadInOut, elevator, None) gcode = [ 'G0 X0.000000 Y2.000000', 'G0 Z0.000000', 'G1 Y3.000000', 'G2 J-3.000000 Y-3.000000 Z0.500000', 'G2 J3.000000 Y3.000000 Z1.000000', 'G2 J-3.000000 Y-3.000000 Z1.500000', 'G2 J3.000000 Y3.000000 Z2.000000', 'G1 X0.000000 Y2.000000', ] self.assertEqual([p.toGCode() for p in path], gcode) self.assertCoincide(start, FreeCAD.Vector(0, 2, 0)) def test42(self): '''Verify thread commands for a one and a half threads''' center = FreeCAD.Vector() cmd = 'G2' zStart = 0 zFinal = 1.5 pitch = 1 radius = 3 leadInOut = False elevator = 2 path, start = PathThreadMilling.threadCommands(center, cmd, zStart, zFinal, pitch, radius, leadInOut, elevator, None) gcode = [ 'G0 X0.000000 Y2.000000', 'G0 Z0.000000', 'G1 Y3.000000', 'G2 J-3.000000 Y-3.000000 Z0.500000', 'G2 J3.000000 Y3.000000 Z1.000000', 'G2 J-3.000000 Y-3.000000 Z1.500000', 'G1 X0.000000 Y-2.000000', ] self.assertEqual([p.toGCode() for p in path], gcode) self.assertCoincide(start, FreeCAD.Vector(0, -2, 0)) def test43(self): '''Verify thread commands for a one and 3 quarter threads''' center = FreeCAD.Vector() cmd = 'G2' zStart = 0 zFinal = 1.75 pitch = 1 radius = 3 leadInOut = False elevator = 2 path, start = PathThreadMilling.threadCommands(center, cmd, zStart, zFinal, pitch, radius, leadInOut, elevator, None) gcode = [ 'G0 X0.000000 Y2.000000', 'G0 Z0.000000', 'G1 Y3.000000', 'G2 J-3.000000 Y-3.000000 Z0.500000', 'G2 J3.000000 Y3.000000 Z1.000000', 'G2 J-3.000000 Y-3.000000 Z1.500000', #'(------- finish-thread -------)', 'G2 J3.000000 X-3.000000 Y0.000000 Z1.750000', #'(------- finish-thread -------)', 'G1 X-2.000000 Y0.000000', ] self.assertEqual([p.toGCode() for p in path], gcode) self.assertCoincide(start, FreeCAD.Vector(-2, 0, 0)) def test44(self): '''Verify thread commands for a one and 3 quarter threads - CCW''' center = FreeCAD.Vector() cmd = 'G3' zStart = 0 zFinal = 1.75 pitch = 1 radius = 3 leadInOut = False elevator = 2 path, start = PathThreadMilling.threadCommands(center, cmd, zStart, zFinal, pitch, radius, leadInOut, elevator, None) gcode = [ 'G0 X0.000000 Y2.000000', 'G0 Z0.000000', 'G1 Y3.000000', 'G3 J-3.000000 Y-3.000000 Z0.500000', 'G3 J3.000000 Y3.000000 Z1.000000', 'G3 J-3.000000 Y-3.000000 Z1.500000', #'(------- finish-thread -------)', 'G3 J3.000000 X3.000000 Y0.000000 Z1.750000', #'(------- finish-thread -------)', 'G1 X2.000000 Y0.000000', ] self.assertEqual([p.toGCode() for p in path], gcode) self.assertCoincide(start, FreeCAD.Vector(2, 0, 0)) def test50(self): '''Verify lead in/out commands for a single thread''' center = FreeCAD.Vector() cmd = 'G2' zStart = 0 zFinal = 1 pitch = 1 radius = 3 leadInOut = True elevator = 2 path, start = PathThreadMilling.threadCommands(center, cmd, zStart, zFinal, pitch, radius, leadInOut, elevator, None) gcode = [ 'G0 X0.000000 Y2.000000', 'G0 Z0.000000', #'(------- lead-in -------)', 'G2 J0.500000 Y3.000000', #'(------- lead-in -------)', 'G2 J-3.000000 Y-3.000000 Z0.500000', 'G2 J3.000000 Y3.000000 Z1.000000', #'(------- lead-out -------)', 'G2 I0.000000 J-0.500000 X0.000000 Y2.000000', #'(------- lead-out -------)', ] self.assertEqual([p.toGCode() for p in path], gcode) self.assertCoincide(start, FreeCAD.Vector(0, 2, 0)) def test51(self): '''Verify lead in/out commands for one and a half threads''' center = FreeCAD.Vector() cmd = 'G2' zStart = 0 zFinal = 1.5 pitch = 1 radius = 3 leadInOut = True elevator = 2 path, start = PathThreadMilling.threadCommands(center, cmd, zStart, zFinal, pitch, radius, leadInOut, elevator, None) gcode = [ 'G0 X0.000000 Y2.000000', 'G0 Z0.000000', #'(------- lead-in -------)', 'G2 J0.500000 Y3.000000', #'(------- lead-in -------)', 'G2 J-3.000000 Y-3.000000 Z0.500000', 'G2 J3.000000 Y3.000000 Z1.000000', 'G2 J-3.000000 Y-3.000000 Z1.500000', #'(------- lead-out -------)', 'G2 I0.000000 J0.500000 X0.000000 Y-2.000000', #'(------- lead-out -------)', ] self.assertEqual([p.toGCode() for p in path], gcode) self.assertCoincide(start, FreeCAD.Vector(0, -2, 0))