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Horn-Side Drive Arm
A 5 mm thick, 98 mm long drive arm that bolts onto a hobby servo horn. A 2.4 mm radial slot running 6–22 mm from the pivot takes M2 horn screws at any horn hole spacing, and a 7 mm access hole sits over the spline screw. The far end has a pad with two M3 self-tap pilots (2.6 mm, 15 mm deep, 12 mm apart) that screw into the pad edge, so you can attach a linkage, gripper finger or flag.
🧩 Part of the SG90 Sawtooth-Foot Inchworm Crawler (servo-driven side of the front yoke) kit.
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