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.*
8 mm Shaft Differential Windlass Drum
A two-diameter differential windlass ("Chinese windlass") drum for an 8 mm rod. The 32 mm and 22 mm barrels wind the same rope in opposite directions, so the load rises only 15.7 mm per turn, about 24:1 ideal advantage with a 60 mm crank. It's 91 mm tall with 44 mm flanges, a captured M3 nut and set screw to lock it on the shaft, and rope anchor holes in the end flanges. Use it to lift or tension heavy loads slowly from a small hand crank or motor.
Flagged: lifting or tensioned load. Not for safety-critical use without independent engineering review.
Print-In-Place Rope Turning Block
A surface-mount rope pulley with a 34 mm sheave that prints in place on its own 9 mm axle post — no bearings, no assembly. The V-groove takes 5–6 mm rope (clothesline, tarp ridgeline, ceiling hoist, kayak or gate pull line) and redirects it up to 180°; the 50 x 58 mm base screws down with four M5 / #10 wood screws through 5.5 mm holes, and the capture cap keeps the rope in the groove even when the line goes slack.
Flagged: lifting or tensioned load. Not for safety-critical use without independent engineering review.