I was doing really well, I have managed to mount the Y axis on slides and it all seems to work well.... Then I decided to try turning a ballnut around on its ballscrew...

I got it off ok onto the nice piece of tube Zapp sends with it. I think I then made the mistake of trying to put it back on the motor end not the floating end...

result balls all over the floor which I am never going to be able to find. I really hope I can get some more... Any suggestions?