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.*
Horn-And-Bearing Joint Yoke
A C-shaped yoke for a robot arm joint. The top arm bolts to a servo horn (7 mm centre hole plus two 2.4 mm screw slots) and the bottom arm holds a 624 bearing (13 mm OD) press-fit on the same axis, so the servo is supported on both sides instead of hanging off its spline. The 5 mm back plate has four M3 clearance holes on a 16 x 20 mm pattern to mount the next arm link, and the part prints on its side so the joint loads run along the layers, not across them.
Print-In-Place Tendon Thumb
A two-segment robot thumb, 72 mm long, that prints in place. It has a clevis IP joint with a fused 5 mm pin running in a 6 mm bore (0.5 mm clearance) and two 2 mm flexor/extensor tendon channels that end in a tie window at the tip. The root pivots on an M3 bolt through a 3.4 mm clearance hole, so you can add a tendon-driven thumb to a servo or string-pulled robot hand.
Print-In-Place Tendon Finger
A three-segment robot finger that prints already assembled. It has two 5 mm pin knuckles with 0.5 mm clearance, plus flexor and extensor tendon channels (2 mm bores) for fishing line or Dyneema driven by a servo. It is 18 x 14 mm in section and about 104 mm long, and mounts through a 3.4 mm M3 hole at the base.
Continuum Snake Spine Vertebra
A stackable 2-DOF vertebra for snake robots and tendon-driven continuum arms. Each 36 mm link has a 10 mm hollow centre channel for wiring and four 2.4 mm tendon holes on a 30 mm circle. You chain identical links by turning each one 90° to the last. Every pivot is an M3x8 screw that passes through a 3.4 mm clearance tab and threads into a 2.6 mm self-tap tab, and each joint tilts about ±35°. It prints without supports because a 45° funnel sits under the disc.
Dual 608 Bearing Yaw Joint Pedestal
A pedestal that preloads two 608 bearings (8 x 22 x 7 mm) 36.6 mm apart on a common vertical axis, giving a printed robot-arm shoulder/waist joint the moment stiffness people normally pay $100+ for a cross-roller bearing to get. 44 x 44 mm gusseted flange with four M4 clearance holes on a 32 mm square, 44 mm tall, 19 mm centre bore for an 8 mm shaft plus collars, and a slotted pinch collar with an M3 bolt and captured nut that takes the slop out of the upper press fit.