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.*
Joist-Mount M8 Hoist Pulley Fork Bracket
A ceiling-joist fork bracket for DIY bike, kayak and ladder hoists. It holds any rope sheave up to 22 mm thick and 80 mm in diameter (for example a 608-hub pulley) on an M8 bolt through 8.3 mm bores, so you don't have to buy a full hoist kit just for the pulley block. The four 5.5 mm holes take #10 (4.8 mm) wood screws into the joist. The part prints on its side, so the downward rope pull runs along the layers instead of across them.
Flagged: lifting or tensioned load. Not for safety-critical use without independent engineering review.
Print-In-Place Shade Chain Loop Tensioner
This print-in-place tensioner for roller and cellular shades has a 40 mm V-groove pulley (8 mm wide, 4 mm deep). The pulley turns on a 9 mm pin and is held in place by an overhead bridge, with 0.5 mm clearance on every mating face. Two #6 screws (4.5 mm holes) hold it to the frame: one goes through the hollow pin and one through the tab. It keeps a loose bead-chain or cord loop (up to about 5 mm) taut and close to the wall, so a worn clutch is less likely to let the shade droop and children can't pull the loop out.
608 Bearing Clothesline Pulley Wheel
A 70 mm replacement pulley wheel for old clothesline brackets whose original wheel has seized or cracked. The bracket stays where it is. A 608 bearing (8 x 22 x 7 mm) press-fits into a 22.05 mm pocket and runs on an 8 mm (M8 or 5/16 in) axle bolt. The wheel is 15 mm thick at the hub, so it fits any fork with at least 16 mm between the cheeks; washers take up any extra width. The 90° V-groove, 5 mm deep, holds clothesline up to about 6 mm thick.
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.
Bike Shifter Pull-Ratio Adapter Pulley
A print-in-place stepped cable pulley that converts shifter cable pull to a different derailleur pull ratio — 1.48:1 (Ø37.2 mm groove in, Ø25.2 mm groove out, or reversed for 0.68:1) so a road brifter can run an MTB derailleur. The pulley spins captive on an integral Ø8 mm axle with a 0.5 mm radial and 0.4 mm vertical clearance; each cable exits a rim notch and is pinched under an M3 screw self-tapped into a 2.6 mm hole. The 72 x 44 x 24 mm base bolts to an M5 bottle boss (5.5 mm clearance hole) or straps to a frame tube through two 8 x 2.5 mm zip-tie slots.
608 Flat Belt Idler Pulley
A 68 mm OD flanged flat idler pulley that runs on two press-fit 608 bearings (22.05 mm pockets, 7 mm deep, top and bottom) instead of a molded plastic sleeve, with a 16 mm flat belt face sized for 1/2 in V-belt backsides and 4 mm flanges to keep the belt tracking. Replaces seized or shattered deck/tensioner idlers on mowers, snowblowers and belt-driven robot drivetrains; ribbed rim and hub keep it under ~40 cm³ and print it without supports.
GT2 60T Pulley 8 mm Bore
A 60-tooth GT2 timing pulley (2 mm pitch, 37.7 mm tooth OD, 41.7 mm flanges) with an 8.3 mm slip-fit bore for 8 mm shaft and a split-clamp hub tightened by a single M3 screw against a captured M3 nut. 22 mm tall with a 7 mm flanged belt land for 6 mm GT2 belt — the big reduction pulley you can't buy off-the-shelf in 8 mm bore.