Addon for importing STEP files into Blender for macOS only.

Inspired by its equivalent called stepper for Windows, STEPmac produces a mesh based on triangulation of the underlying surface to import *.STEP files into Blender.

Current Version: 1.0.5 (macOS only)

Tested with:

• macOS Sonoma 15.6 , blender 4.5.3 (last version)
• macOS Sonoma 14.4, blender 4.1 & 4.2

It should work with older macOS versions.
Compatible builds for Intel or Apple Silicon (M1, M2, M3) processors.

Install procedure:

1) Download the file after purchasing

2) Open blender. Go to Edit > Preferences

3) For Blender > 4.3

Select the downloaded ZIP file by clicking on the INSTALL button

Then click on INSTALL FROM DISK

For Blender < 4.3

Select the downloaded ZIP file by clicking on the INSTALL button

And, select the STEPmac ZIP file you just downloaded.

4) To import a STEP file, go to File > Import > STEP (.step, .stp)

Parts are imported and hierarchy of the parts is conserved:

6) To open the STEPmac menu press 'N'

Troubleshooting:

1) Mach-o file error

ImportError: dlopen(/Users/.../STEPmac/OCC/Core/_BRep.so, 0x0002): tried '/Users/.../STEPmac/OCC/Core/_BRep.so' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64'))

If you have a mach-o file error on the _BRep.so file, this probably comes from a wrong choice of Blender version based on you mac chipset. Note that you can install Blender version intel on a silicon chip and the macOS will emulate... So, reinstall Blender with the correct version:

• Blender Silicon on silicon chips (M1, M2, M3 ...)
• Blender Intel on intel chips

2) Octane rendering

Currently, the plugin is not working with Octane rendering. It needs to use the built-in rendering Cycles.