SolveSpace in same time has 2D & 3D constraints-based solver ("libslvs"). > FreeCAD has a 2D constraints-based solver (the sketch workbench) Fun Fact: SolveSp

SolveSpace in same time has 2D & 3D constraints-based solver ("libslvs"). > FreeCAD has a 2D constraints-based solver (the sketch workbench) Fun Fact: SolveSpace solver "libslvs" used by 'realthunder' for Assembly3 Workbench for FreeCAD.[0,1] [0] https://github.com/realthunder/FreeCAD_assembly3/wiki/Build-Instruction#solvespace https://github.com/realthunder/FreeCAD_assembly3/wiki/Build-... [1] https://forum.freecadweb.org/viewtopic.php?p=204024#p204024 https://forum.freecadweb.org/viewtopic.php?p=204024#p204024