motors on which end of screw

[Jonathan]

Believe the screws are the ones you sold him so you should know best which they were machined to use.?

Thought it might be those. Have a look at the first post in my build log to see how I did the shorter screw with a single thrust bearing and 'STD' bearing:

http://www.mycncuk.com/forums/showth...outer-building...

I did the Y similarly but with two thrust bearings. Easier to use double row angular contact. Didn't I include some bearings / mounts with it? I forget...