Thanks for your help Kip,

The build's coming along nicely (so more pics soon)...

I'll fudge the motor power together using 3NM motors I think... At least I'll have some decent parts to move over to machine #2!!

It really is time to think about leadscrews now. What about leadscrew whip? My X axis screw will be 1600mm long (63"). I was hoping to get away with 16mm (or 18mm) diameter. What do you recon?