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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 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.