Contain all the relevant files. For FreeCAD, I have included 'input_parts.csv' as that format has to be followed for creating the input file. Bill of Material and exported STEP and STL file for washer ...

Arc Slot is to be used in an open sketch and will create a constrained, arced slot. Optionally, it can be self constrained (that is it will move as a whole, with geometry and constraints) or the same ...