A little more about whats under the hood.
I am using 3 gecko 201's, a 48VDC 7.3 A Keling power supply, a Sony 5 VDC 2000 miliamp laptop battery charger for the common 5 VDC on the Gecko's. I'm using a stand Winford BOB. No frills. I am using a switching PS for the 12 VDC I needed to run the fans in the case.
I made one good computer out of several I had. I had to take the ram out of one and the PS out of another, but it's nice and stable. It's running XP optimized for Mach. Below is an older photo of that control box.
My motor step settings (in case I loose them) are 50,800 steps in X.
33866.66666 steps in Y or on the tailstock.
32,000 for the Z lead screw.
The lead screw runs good @ 45 IPM and 20 IPM on the other two. They can go higher, but I am scared of loosing steps. Crashing on a lathe seems like it would be much more undesirable than on a mill.
This is all with just the standard screws. Made my own straight steel motor couplings. The tailstock seems to have a little wiggle when rapiding, but it still seems to drill nicely centered holes without a pilot or center drill.
The other two are smooth running.
I initially had my rapids set pretty high on the Z with a decent matching accel. Well, it popped the half nut then. 45 IPM with an accel. of 16 is what I'm using now and it doesn't pop the half nut. Anyone know of a way to tighten the half nuts up? I haven't studied it yet.