Wrist Tendon Guide Comb
Upright 80 x 20 x 24 mm comb for the 'SG90 Tendon-Driven Robot Hand' kit. It bolts to the Five-Servo Forearm Deck with 2x M3x10 bolts and nuts through Ø3.4 mm holes at (112, ±20), and runs 10 tendons of 0.5–0.8 mm nylon line through Ø2.0 mm guide holes. The guide holes sit at the flexor height (17 mm) and extensor height (5 mm) for each finger lane. Each hole has a 45° countersink widening to Ø5 on the spool side, so lines that come in at an angle don't fray on a sharp printed edge.
robotics kit tendon sg90