Quote Originally Posted by regpye View Post
The control board will be a USB Mach3 5 axis with separate stepper drivers. The THC lifter has it's own DC motor and is self controlling.

Have you bought anything yet?
One thing I'll say is I would steer clear of usb controllers. Use a basic parallel one or go ethernet.
Usb can be an arse with noise issues. I've seen plenty of folk have problems.

Why do you think parallel was there for years, then usb started coming out and almost immediately 'proper' manufacturers were ditching it for ethernet.
Hmmmmm....