Springless Rear Suspension for 3D Printed 1:28 RC Car Chassis (Mini-Z)

This is a springless rear suspension design that removes the need for the soft pen/pencil springs used on the rear suspension.

Note: I have printed and installed it on my car and it fits perfectly. The spring stiffness feels pretty good to me, but I have not finished the electronics so I haven't actually driven with it yet. Please give it a go and provide feedback for potential improvement!

I have included a 3MF, STEP, and Fusion 360 file for anyone who wants to modify it themselves.

I removed the shafts that the springs would normally go over and replaced them with a printable zig-zag spring design.