1

There are ridges on the sides of my 3d prints that are suposed to be flat. They occour at all resolutions and at incremints. I am printing on a prusa i3 clone from ebay and others with this printer do not experience the mishap. Please give advice or reasons as to why this is happening.

2

Hi there,

This sounds like “z wobble,” primarily caused by a bent lead screw. You’ll want to get a replacement and install it. Flex couplers would help as a temporary fix.

Best,

Maddie - 3D Hubs