freecad.gears workbench A gear workbench for FreeCAD 1.3 2024-09-11 looooo GPL-3.0-or-later https://github.com/looooo/freecad.gears https://github.com/looooo/freecad.gears/issues https://wiki.freecad.org/FCGear_Workbench freecad/gears/icons/gearworkbench.svg GearWorkbench ./ 0.19 gear gears scipy