Hi! I just finished documenting my repair of a 1990s Millport CNC vertical mill from a non-functioning brick to a floppy-wielding chip thrower. Even though this is a Bridgeport clone machine, it is surprisingly stout and has all Anilam controls with Baldor servos. I detailed the entire troubleshooting process and PCB level repairs needed to make this DOS based servo-drive CNC shift some 1s and 0s and throw chips again:
https://salvagedcircuitry.com/90s-cnc-revival.html
I thought you guys might get a kick out of this repair as I'm not just stripping the guts and going linux CNC. This is an early 1990s intel 486 computer based CNC, and while it's old, it's still capable. I included some video of it working toward the end of the writeup.
Let me know what you think!
*Moderators, If there is a better sub-forum for this, feel free to change it. Thanks!