Pinch-Feed Drive Roller, Print-Ready
Created today
Description
A knurl-free drive wheel for a pinch-feed wire feeder, built like a small industrial pulley: a 24 mm roller with a hub on one side and a blind D-bore that slips over a 5 mm D-shaft. The model is just the roller, standing on its hub and ready to slice.
Design notes
- Blind D-bore, open on the hub face and closed by a wall on the far end, so the closed end shows which side stays out.
- M3 grub screw hole with a trapped hex nut that slides in through a slot open to the rim.
- Counterbored screw recess 2 mm deep, so a headed M3 screw sits below the surface and a nylon or TPU sleeve goes on smooth.
- Hub spaces the roller off the motor face so the two do not rub.
Printing
- Stands on the hub with the bore opening onto the bed, so there is no bridging inside the bore and no supports are needed.
- Printing upright keeps the roller round.
- Suggested: PETG, ASA or nylon, 3 or more walls, 25–30% infill.
Images
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