Professionally, mostly IBM 370s, IBM Series 1 some PDP and VAX-11s, Various Micros: SC/MP, 6502, 6809, 68000
My own first computer had 256 bytes of RAM and controlled my model railway.

Ah for the days when computers did as they were told!


So far I've tried:
A breakout board that the supplier claimed would work on either USB or parallel but they actually meant it could be powered from USB (I know rookie mistake).

A UC-100 added to the breakout board, no life signs. No activity on the USB.

A Chinese USB motion controller that they said would work with Mach3 but later confessed only worked with their own proprietary software. Not that I could get that to work either.

A UK supplied (European made) SODIAL USB motion controller. Mach3 didn't even recognise the plugin provided.

A UK supplied (Far east made) NVUM USB motion controller that was supplied with a plugin driver that didn't match what the instructions claimed. They swear it's the correct plugin. Mach3 recognises the plugin but will not communicate with it.

I've downloaded Mach3 multiple times and tried copies provided by the controller supplier. All claim to be the same version, 3.043.066 . I've reinstalled Windows 10 on a formatted laptop. I've tried both the USB 2.0 and USB 3.0 ports and there is data activity on the USB. I've also tried my old Panasonic Toughbook XP machine (ideal for the workshop).

I am close to binning the whole project and sticking to manual machining.