# ElectroMagnetic workbench for FreeCAD
[](https://lgtm.com/projects/g/ediloren/EM-Workbench-for-FreeCAD/alerts/) [](https://lgtm.com/projects/g/ediloren/EM-Workbench-for-FreeCAD/context:python)
## Copyright
### FastHenry support
Copyright (c) 2019
Efficient Power Conversion Corporation, Inc. http://epc-co.com
Developed by FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com under contract by EPC
### VoxHenry, FasterCap and FastCap support
Copyright (c) 2019
FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com
## Description
This project is dedicated to building an ElectroMagnetic workbench for [FreeCAD](https://www.freecadweb.org). FreeCAD is a free 3D parametric CAD.
FreeCAD is used as pre-processor interfacing to the open source electromagnetic field solvers [FastHenry](https://www.fastfieldsolvers.com/fasthenry2.htm) and [FasterCap](https://www.fastfieldsolvers.com/fastercap.htm).
At present, the workbench supports:
- [FastHenry](https://www.fastfieldsolvers.com/fasthenry2.htm) inductance solver
- [VoxHenry](https://www.fastfieldsolvers.com/software.htm#voxhenry) inductance solver: beta support
- [FasterCap](https://www.fastfieldsolvers.com/fastercap.htm) capacitance solver: ongoing development, today at the stage of Python macro only, for creating an input file
## Version
The current version of the ElectroMagnetic workbench can be shown, once installed, from the **EM** menu, selecting **About**.
The version number is also reported in the sources, in the global variable **EM_VERSION** in the file EM_Globals.py.
## Installing
The ElectroMagnetic workbench is managed as a FreeCAD addon. It can be installed from within FreeCAD using the add-ons manager under the Tools menu, see the [FreeCAD add-on documentation](https://www.freecadweb.org/wiki/Std_AddonMgr) for more specific instructions
### Manual installation
This addon can also be manually installed, but this method is not recommended, as the add-ons manager provides a more user friendly experience.
If you still wish to manually install the workbench, you can download it by clicking the **Download ZIP** button found on top of the page, or using **Git**. The addon must be un-zipped in your user's FreeCAD/Mod folder.
**Note**: Your user's FreeCAD folder location is obtained by typing in FreeCAD's python console: `FreeCAD.ConfigGet("UserAppData")`.
You must then rename the new folder 'EM', i.e. the new folder structure must be /Mod/EM. Opening, or closing/reopening FreeCAD then reloads the workbenches, and the E.M. workbench will show up in the pull-down workbenches menu in FreeCAD.
## Additional information
For any additional information please visit [FastFieldSolvers](https://www.fastfieldsolvers.com/), write on the [FastFieldSolvers Forum](https://www.fastfieldsolvers.com/forum) or on the [FreeCAD Forum](https://forum.freecadweb.org/viewforum.php?f=18) under the FEM topic.
See LICENCE.txt for the license conditions.
Access to the binary and source code download pages on [FastFieldSolvers](https://www.fastfieldsolvers.com/) is free, and you may access anonymously if you want.