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.
Upper Arm Channel Link
This is the elbow-to-head link of the 'MG90S Animatronic Desk Lamp Robot' kit. It is a 131 x 47 x 28 mm U-channel, printed web-down, with its joint axes 95 mm apart. The elbow tongue is 32 mm wide and takes the MG90S/SG90 horn on one side. On the other side it takes an M4x16 bolt, a captive M4 nut and a 7 mm boss that runs on a 624 bearing (4 x 13 x 5 mm). The head clevis is 36 mm wide. It has two M3 heat-set bores (4.0 mm) at a 44 mm pitch for the slotted servo plate, and a 13.05 mm press-fit seat for a 624 bearing.
Turntable Shoulder Clevis
Yaw turntable for the 'MG90S Animatronic Desk Lamp Robot' kit. It is a 118 mm disc that rides on the Weighted Yaw Base Tub's thrust rim at r=54–60, centred by a 53.5 mm skirt. A 32 mm solid horn pad with a 7 mm screw-access hole takes the MG90S/SG90 yaw servo horn. The shoulder clevis sits 36 mm above the deck, with 36 mm between the cheeks. The servo cheek has M3 heat-set bores at a 44 mm pitch and a 34 × 16 mm body window for the slotted servo plate. The bearing cheek has a press-fit 624 seat, 13.05 × 5 mm, behind a 10 mm lip. The disc also has two 20 × 8 mm wire slots.
Four-Finger Palm With Thumb Clevis
The palm of the 'SG90 Tendon-Driven Robot Hand' kit. It is a 90 x 80 x 8 mm plate with a thenar lobe that bolts to the Five-Servo Forearm Deck with 4x M3x16 bolts and nuts through Ø3.4 mm holes. Four finger knuckle clevises and one side thumb clevis each take an M3x20 socket head bolt and nylock nut as the pin, with 6.6 mm gaps for the 6 mm digit tongues. Extensor grooves are cut into the underside and slotted flexor ribs sit on top at 17 mm, so the 0.5 mm nylon tendons run to each finger at their fixed heights.
Carriage Clevis Output Tower
This clevis output is part of the 'NEMA17 Leadscrew Push-Pull Actuator' kit. Its 40 x 36 x 5 mm base bolts to the carriage top with four M3x10 screws. They go through 3.4 mm holes on the 20 x 20 mm MGN12H pattern, with 6.5 mm counterbores. Two gusseted ears stand 35 mm tall with an 8.4 mm gap and hold an M3x20 pin and a nyloc 28 mm up, across the actuator axis. The ears are 12 mm wide so that a hex key can reach all four screws.
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.