How to fix z-axis crashes on a 2418 Mini CNC Milling Machine

#1

When I first put together my 2418 Mini CNC machine, the Z-axis would work it’s way free and crash into the work piece. I couldn’t get the grub screws on the blue coupler tight enough. The leadscrew would drop straight out.


This is a companion discussion topic for the original entry at http://reprage.com/post/how-to-fix-z-axis-crashes-on-a-2418-mini-cnc-mill