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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 print-in-place rotary output stage for a NEMA 17 stepper joint: a Ø52 mm race bolts to the 31 mm square M3 faceplate pattern and sits over the 22 mm pilot boss, while a captured rotor clamps to the 5 mm shaft (Ø5.3 bore, M3 grub screw in a radial heat-set insert) and carries the arm on four M3 heat-set bosses in a 16 mm square. The printed race takes the radial and moment load that would otherwise destroy the motor's own bearings; total height 25.5 mm, two pieces, no assembly.
A 60 mm one-piece carabiner whose gate is a built-in flexing spring arm — press it inward to hook on, and a capture nose stops it opening under load. Prints flat with no supports, no assembly, and no metal spring; sized for keys, water bottles, and bag straps.