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* BIM: disable root logger propagation to imported modules Prevents noisy log messages from third-party modules, such as ladybug, from appearing in the console. A context manager temporarily sets the root logging level to WARNING during the import process, which avoids altering the application's permanent logging configuration. Ultimately, this is a workaround: FreeCAD seems to set the root logging level to INFO at least, which propagates to all loaded modules. It should set it to WARNING or ERROR at least, but changes outside the BIM module were out of scope for this PR. * BIM: make module import error explicit, do not mask exceptions * BIM: adapt code to the new Draft.Line properties (PR #11941) Adapts the code to a Draft.Line API change. Property names for the sun ray object are updated (e.g., from ArrowType to ArrowTypeEnd) to align with the new definitions, which prevents errors and ensures the sun ray's arrow displays correctly. * BIM: do not update sun position until all properties are initialized Prevents an AttributeError error when loading files. During the loading sequence, the onChanged callback is triggered for related properties until they all have been initialized. A hasattr guard is added to ensure the dependent logic is not executed until the object is in a consistent state. * BIM: restore property constraints at the right time Fixes an unconstrained properties issue when loading files. Constraint metadata is not saved in files, and the UI is built before the Python code can re-apply it. The fix defers the constraint restoration using QTimer.singleShot(0) to run after the file has fully loaded. The restoration logic also correctly preserves user-saved values by reading them from the object before re-applying the non-persistent constraints.
Your own 3D Parametric Modeler
Website • Documentation • Forum • Bug tracker • Git repository • Blog
Overview
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Freedom to build what you want FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size. Parametric modeling allows you to easily modify your design by going back into your model history to change its parameters.
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Create 3D from 2D and back FreeCAD lets you sketch geometry-constrained 2D shapes and use them as a base to build other objects. It contains many components to adjust dimensions or extract design details from 3D models to create high quality production-ready drawings.
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Designed for your needs FreeCAD is designed to fit a wide range of uses including product design, mechanical engineering and architecture, whether you are a hobbyist, programmer, experienced CAD user, student or teacher.
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Cross platform FreeCAD runs on Windows, macOS and Linux operating systems.
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Underlying technology
- OpenCASCADE A powerful geometry kernel, the most important component of FreeCAD
- Coin3D library Open Inventor-compliant 3D scene representation model
- Python FreeCAD offers a broad Python API
- Qt Graphical user interface built with Qt
Installing
Precompiled packages for stable releases are available for Windows, macOS and Linux on the latest releases page.
On most Linux distributions, FreeCAD is also directly installable from the software center application.
For weekly development releases visit the releases page.
Other options are described on the wiki Download page.
Compiling
FreeCAD requires several dependencies to correctly compile for development and production builds. The following pages contain updated build instructions for their respective platforms:
Reporting Issues
To report an issue please:
- Consider posting to the Forum, Discord channel, or Reddit to verify the issue;
- Search the existing issues for potential duplicates;
- Use the most updated stable or development versions of FreeCAD;
- Post version info from
Help > About FreeCAD > Copy to clipboard; - Restart FreeCAD in safe mode
Help > Restart in safe modeand try to reproduce the issue again. If the issue is resolved it can be fixed by deleting the FreeCAD config files. - Start recording a macro
Macro > Macro recording...and repeat all steps. Stop recording after the issue occurs and upload the saved macro or copy the macro code in the issue; - Post a Step-By-Step explanation on how to recreate the issue;
- Upload an example file (FCStd as ZIP file) to demonstrate the problem;
For more details see:
Note
The FPA offers developers the opportunity to apply for a grant to work on projects of their choosing. Check jobs and funding to know more.
Usage & Getting Help
The FreeCAD wiki contains documentation on general FreeCAD usage, Python scripting, and development. View these pages for more information:
The FreeCAD forum is a great place to find help and solve specific problems when learning to use FreeCAD.
This project receives generous infrastructure support from
and KiCad Services Corp.