@dc42:
When you say the Duet is invisible, do you mean that it doesn't show up in Device Manager when you connect it via USB? It normally shows up under Ports.
Yes, it does not show up in Device Manager, I expanded the whole tree and it's nowhere to be seen.
@dc42:
When you power the Duet from USB, you should get two red and one green LED lit on the edge of the board with the USB connector. Does this happen? If the green LED is not lit than this usually means that you have your endstop switches wired to the wrong pins.
No, there's no green LED. In that case, I'll try without endstops plugged in to see if this resolves the issue.
Thanks for the quick reply!