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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 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 weighted-footprint cup that parks a wood glue bottle nozzle-down so the glue is always primed and never crusts over. The tapered Ø27–35 mm bore self-centers most 8–16 oz caps, with a 12 mm drip well below the tip and two side slots for grip and level checking; 80 mm base, 60 mm tall.
A soil spike that turns an empty soda bottle into a slow-drip plant waterer — press the inverted bottle neck into the ribbed socket and push the 140 mm spike into the pot. Three staggered drip ports feed water down at the root zone while the 44 mm flange keeps it from sinking.