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.*
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.
V-Groove Gripper Finger
A bolt-on L-shaped jaw finger (print ×2) for the 'NEMA17 Rack-and-Pinion Parallel Gripper' kit. Its 28 × 36 × 5 mm flange fixes to the LM8UU jaw carriage with two M3x12 screws into brass heat-set inserts, through 3.4 mm counterbored holes 24 mm apart. The 6 mm blade reaches 65 mm forward and has a 90°, 3 mm deep V-groove that centres round stock, plus three grip ribs. The fingers close to a 4 mm gap and open to 56 mm.
Print-In-Place Tendon Robot Finger
A 120 mm, three-joint robot finger that prints as one piece with 16 x 16 mm segments. The pin hinges have 0.5 mm clearance, and there are flexor and extensor tendon channels for 1.5 mm cord or fishing line, with a tie-off hole in the tip. It mounts with four M3 screws through a 32 mm wide flange, so a servo or cable spool can curl it into a gripper.