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.*
Parallel Follower Leg Link
This is the passive follower link for the 'SG90 Parallelogram-Leg Biped Walker' kit. It is 74 x 14 x 6 mm, has full-round R7 ends and two 3.4 mm pivot holes exactly 60.0 mm apart, and a 1.5 x 8 mm stiffening rib runs between them. The top end bolts to the torso's I4 slot and the bottom end to the ankle lug's inboard face, each with an M3x20 socket head screw, washers and an M3 nyloc nut, so the ankle stays level as the leg swings.
SG90 Tibia Foot Link
The lower leg and foot for the 'SG90 18-DOF Hexapod Walker' kit (print 6). It is a tapered link 90 x 20 x 6 mm. It fits an SG90/MG90S single-arm horn in a 1.5 mm recess (a 9 mm circle plus a 6.5 mm slot to 19 mm), and a 6 mm hole gives access to the horn screw. You fix the horn with M2x6 self-tappers drilled through its own holes. The foot tip sits 80 mm from the pivot, has a 5 mm radius and 1 mm chamfers so it rolls cleanly, and a 5 x 36 mm slot takes out weight.