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.
robotics kit delta-robot sg90