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Ackermann Trapezoid Tie Bar
Fixed-length tie bar for the 'SG90 Ackermann Steering Rover Chassis' kit: a 77 x 24 x 6 mm flat bar joining both knuckle arms through 3.4 mm pivot holes 65.1 mm apart (two M3x25 SHCS + nylocks). A 3.4 x 16 mm centre slot takes an M3x20 pin through the SG90 horn's outer hole, so it works with any horn radius from about 10 to 16 mm.
🧩 Part of the SG90 Ackermann Steering Rover Chassis (links both knuckle arms, driven by servo pin) kit.
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