Anti Z Wobble

In expensive Chinese printers are not a lost cause. My Geeetech comes with the z-axis coupled to the x-axis. So What? Well, the threaded rods that lift the x-axis aren't straight, and that wobble is directly translated into the x and y directions.

The solution is to decouple the z axis from the x axis. But how? Some have released the top of the threaded rod from the frame, allowing it wobble freely. This does seem to reduce the z-wobble, as the threaded rod has less to push against, but it doesn't solve the problem completely. The solution exists, just attach the brass z-axis nut to separate piece that can slide while lifting the x-axis. Many of these exist on thingiverse, but the first one I tried (supposedly for my very printer), printed way too small. So I designed m own. I never realised just how much wobble there was.

A minor amount of filing was necessary to get the non-brass nut side to move smoothly.

In the end, FREE the X-AXIS, it did nothing wrong!