Modular Watch Movement Holder

The base is generic and accepts the movement rings, you need to enter the movement OD into the FreeCAD sheet and it will generate the ring which will slot into the base and accept your movement. This design only needs a new ring printed for each movement size (size automatically prints on ring) and used the same base over and over again, saving print time, filament and storage space. The ring and base lock together with a keyway to prevent the ring spinning.