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Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.
A printed beam-flexure shaft coupler that joins a 5 mm stepper shaft (NEMA 17) to an 8 mm T8 leadscrew, with three 60°-indexed relief slots so it absorbs misalignment instead of binding the nut. 20 mm OD x 44 mm long, 5.3 mm and 8.6 mm bores, four M3 self-tapping grub screws (two per hub at 90°).
A 60 mm OD × 18 mm wide spoked drive wheel that slips onto any 5 mm motor shaft (NEMA 17, 37 mm gearmotor) and locks with an M3 set screw threaded into the 6.3 mm hub wall. The 8 mm × 2.5 mm rim groove seats a #64 rubber band as a tire, and 24 scallops in the flanges give traction if you run it bare — replaces the hub-and-tire set nobody stocks for one-off robot builds.
A 144 mm desk plate with three real meshing gears — a 24-tooth crank wheel with a domed finger knob driving two 14-tooth pinions, all captured on mushroom-cap posts. Prints fully assembled, no supports: four separate pieces, 0.45 mm clearance everywhere, spin the knob and the whole train turns.
A 139 mm print-in-place centipede: eight leg-bearing body segments joined by seven captured ball-and-socket joints, so the whole body ripples and curls in your hand. Prints fully assembled, flat on the plate, no supports and no assembly.
A tapered 1-cup (240 ml) scoop for dog food, birdseed, coffee beans or detergent, with a flat base so it stands on the counter and a 10 mm hole in the angled handle to hang it on a hook. Bowl is 129 mm long with 2.4 mm walls.