The file 'Compliant / Spring Leadscrew Nut Mount For BZB 3D Printer Model' is (stl) file type, size is 25.9KB.
it replaces parts 2 & 3 and uses a compliant spring instead of a screw based rotational axis, though it still has one.
sorry for the appearance of resulting shape, that wasn't intentional, there was only so much space to build in the compliant mechanism lol
Spring_Inner.stl | 128.9KB |