Quote Originally Posted by stevenblake View Post

I've seen people mention "make sure it grounded well" but the instructions I've read don't mention anything other than grounding the incoming AC which is securely attached to the ground bar in the cabinet. There's only one other wire that goes to the ground bar and that goes to the stepper drives. It's secure. Can't figure out what else to ground.

Any suggestions for what I could try? I was super excited to do so many things with this but now I'm trying to figure out how to get rid of it. I can't rightly sell it if it doesn't work.
Had lots of communication errors until I grounded my Dust Collector hose. I run a copper wire connected to the router, thru the inside of the dust collector hose, all the way back to the dust collector itself, and then terminate the copper wire on the dust collector frame. My comm errors went away with this setup. I moved some hoses one day, forgot to reconnect, and the comm errors came back. Rehooked up wire, and away they went. With all your stuff off, not sure if this is your issue or not, but one more step to try.