compact cylindrical bag dispenser 3d model

Use the uploaded image as a strict reference for the external shape, proportions, and clip design. Create a compact cylindrical dog poop bag holder (approx. 100mm length, 55mm height, 40mm diameter) with a side dispensing slot and rear rotating knob. Internally, implement a manual ratchet rewind system made entirely from plastic geometry (no springs, no separate parts): The spool and ratchet teeth must be integrated into the same printed structure Use angled teeth and a flexible plastic tab (living hinge) to allow one-way rotation when pulling bags out When turning the rear knob clockwise, the tab disengages slightly and allows controlled rewind. No automatic rewind—manual only via knob the mechanism must be simple, printable, and robust (FDM-friendly). The top clip must match the image: Flat, low-profile, and fixed directly to the body Designed to tightly clamp flat leads (up to 25mm wide, 4mm thick). No dangling or rotation Focus on functionality.