Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
Rocker Arm With 608 Pivot
This is the main suspension rocker for the 'NEMA17 Rocker-Bogie Mars Rover Chassis' kit (print ×2). Both faces are identical, so the same print works on the left and right sides. It is an 8 mm thick flat arm about 154 × 104 mm. The main pivot is a 22.05 mm through-bore that takes a press-fit 608 bearing on an M8x40 bolt. The front NEMA17 pad has four 3.4 mm M3 holes on a 31 mm square and a 22.5 mm pilot hole. The bogie pivot boss has an 8.4 mm hole for the M8x35 bolt, and the differential ear has a 3.4 mm hole for an M3x25 link bolt.
Rocker-Bogie Rover Bogie Arm
Bogie link for a rocker-bogie rover or trailer suspension: a 148 x 60 mm flat arm that pivots on a press-fit 608 bearing (22.05 mm seat, 7 mm deep, 8.3 mm shaft bore through a 4 mm shoulder) with two 8 mm stub-axle clamps 120 mm apart and 45 mm below the pivot. Each axle end is a split clamp pulled up by an M3 screw into a captured M3 nut, so wheel axles set and lock without set screws; 9 mm thick plate with lightening holes prints flat, layers in the load plane.
NEMA 17 Sprung Suspension Swing Arm
A swing-arm suspension pod that bolts a NEMA 17 drive motor to a rover chassis through an 8 mm rod pivot, with an integrated printed leaf spring that keeps the wheel loaded over bumps. Motor face uses the 31 mm M3 bolt square with a 22.6 mm clearance bore for the 22 mm pilot boss; the pivot hub is a 16 mm long 8.3 mm bore (slip fit on 8 mm rod) set 95 mm from the motor axis, and the leaf tip pad bears on a chassis stop. Overall 127 x 48 x 16 mm, printed flat so all bending load runs in the XY plane instead of across layer lines.