Jansen 78.7 mm Tie Link
Tie link for the 'NEMA17 Twin-Motor Strandbeest Walker' kit (print ×8). The same part serves as link c (B-K) and link f (D-F) on every leg. It has two 4.5 mm M4 clearance pivot bores exactly 78.7 mm apart, centre to centre, in 16 mm OD × 6 mm hubs, and a solid flat-bottomed 14 × 5.5 mm bar with 0.8 mm chamfers. It is 94.7 mm long overall, runs at layer L2 on M4x25/M4x30 socket head pins with washers and nylocks, and uses about 6 cm³ of plastic.
robotics kit strandbeest jansen-linkage