Search:

Other way round! NC will normally be at ground voltage (Normally Closed to ground) until triggered. "Normal' means you have NOT driven the machine to it's limit and it is continuing to cut material...

Yes and no.
What you are doing when squaring the gantry is setting it perpendicular to the MASTER RAIL and NOT the frame. Infact forget the frame because unless you have built it perfectly square...

20T are what I find best, don't go less than 18 because it makes it difficult with the boss size and you don't have much left for the grub screws. Also, don't try boring them by just drilling on a...

Wow!, just... Wow! I take back everything.

Following the previous post I'd realised I have a bench PSU with a chunky toroidal transformer that I'd previously hacked to pieces. Sounds like a good...

Yep works exactly as you describe.