I made the mistake of buying a fellow poster's X2 project last winter. He had started doing a Hoss conversion but didn't have a modicum of ability. I had my first clue when I saw the sheet metal screws coming out the front of the control box over an inch long so you impaled yourself if you hit the E-stop button. No big, just change them for some machine screws. Then I found that the axis thrust bearings were "press fit" into the bores so they didn't spin at all. Stripped threads, and misaligned holes too. Finally finishing the Z axis and the "new" nut seemed really loose when I installed it. Christ, it's missing so many balls there could still be some more added to the body and the tube is empty. The sad part is this "Goofin" idiot made sure to take pictures hiding the flaws and never mentioned lost ball bearings or other flaws.
I need to find which bearing house sells loose balls so I can pack the ball nut properly. Now that I see the Z nut is boned, I'm thinking it would be to my benefit to check the X and Y nuts that are already installed.
Thanks in advance