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.*
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.
Delta Upper Arm
The servo-driven upper arm for the 'SG90 Mini Delta Pick-and-Place Robot' kit. Print three, lying flat. A 22 mm × 7 mm solid pad with a 5.5 mm centre hole goes on the SG90 horn, and you drill 1.5 mm pilots through the horn holes for the horn's own self-tapping screws. A 12 × 7 mm beam runs 50.0 mm to a 14 mm OD × 8.0 mm boss with a 3.4 mm hole for the M3x40 ball-joint stack. A scribed centreline helps you level the arm.