I have the 728-VT and have done the conversion. The Ultra Precision conversion was a snap. Had it all completed in one long afternoon.
It is truly a bolt on conversion. All the parts are heavy cast iron and well finished.
I highly recommend the Centroid controller with Clearpath servos. If you really
want the flexibility and precision.
My question is... I need a good way to mount an encoder so I can have spindle control.
My current bad idea is to, go VFD drive. I could then lose the bottom spindle pully to make room
for about a 2 1/2" timing pully. I would mount the encoder inside the head (plenty of room) with the shaft
protruding through the top deck also with a 2 1/2" pully. This will allow the encoder to be 1:1
with the spindle.
Any ideas? All comments appreciated.