I changed to a BXA QCTP.
Fitted a ground ballscrew to x.
Ac bearings for x.
Changed to CNC.
Small steppers. Removed. Bigger ones. Removed. Gecko drives. Removed.
I will likely fit the 7x with spare small ac servos, 60V, as I have a set of 10.
And a pokeys ethernet controller, good for 125 kHz.
Another idea is machining a new 7-8x minilathe from scratch.
As a technology demonstrator, probably circa 100 kg in mass.
Then made a big, rigid, bed.
Back in 2005-2006, +/-.
650x500x120 mm, steel sides 12 mm thick, preloaded with 2 sets of 3x15 mm rebar, crossed and welded under tension.
Approx 150 kg in mass.
The bed was the best improvement.
Then got a 12x industrial lathe.
Never used the 7x since (once for polishing something.)
Then fitted the 12x for cnc, 3 times.
Now with 32/4 mm ballscrew on z, ac servos x and y, ac servo spindle.
Yesterday with encoder threading finally connected (yeah).
MPG finally connected (yes, yes, YES !!!).
Redoing servo mount today...
The 7x minilathe was fine, but my stuff is all steel and bigger, so it was just too small for me.