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.*
Hip-Driven Shoulder Clevis
A U-shaped shoulder clevis for robot arms. The 60 x 86 x 5 mm base plate bolts to a hip servo horn through a 9 mm centre hole and four radial M3 slots (r 7–15 mm). The two 6 mm cheeks rise 75 mm: one has a 20.6 x 41.3 mm MG996R-size pocket with tab slots, and the other has a 5.5 x 16 mm vertical M5 slot for the idler pivot, so you can line the pivot up with the servo shaft.
Steel-Pinned Print-In-Place Knuckle Link
A two-link knuckle joint that prints already assembled: a 12 mm tongue turns on a 10 mm printed pin between clevis cheeks, with 0.5 mm clearance all round. The pin has a 4.1 mm bore, so you can push a 4 mm steel dowel through it for extra stiffness. Each 24 x 8 mm arm has four M3 clearance holes on a 10 x 12 mm pattern for bolting to robot arms, legs or linkages, and the tongue's fillet acts as a hard stop when the link is straight.