About this 3D model

BOM: M3x22 - 5pcs - gearbox M3x10 - 3pcs - gears cover M6x10 - 1pc - knob M3x5 - 4pcs - piston linkages 8mm OD aluminum tube, ~52mm length - 3pcs Grease The drive gear must be aligned well before mounting the planetary gearbox. There is alignment mark on the drive gear and the bottom plate. Align those marks while the locking bolts are fully retracted. Some flexing of the bottom plate is required to get the gears in place.