[MrForbes]

so, did ANYONE figure out that the computer is NOT connected to the mill? It's just an old (very old) computer sitting on the desk in my shop, and the mill is in front of it. I did fire up the computer to take the photo...but it's just asking for the cassette tape to be run so it can execute a program on it's Z80 cpu.

I cut the slot manually. And it's ABS tube, not Carbon Fiber.