motors on which end of screw

[JAZZCNC]

STD bearing, is that 'STanDard' bearing? If it's the one of the two screws I think it is then it's one of two cases. Either thrust bearing and standard bearing, or a double row angular contact bearing or pair of thrust bearings.

Yep STD in my world means Standard.! As in STD Deep grove bearings.

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

Thou to be honest I was just trying to make him aware one end needs to be fixed with a simple example of a cheap way to do it. . . .(Knowing because I cut some bits for him that they didn't look like they were designed for 2 bearings.? )