@jeremiahtolbert It’s something in the Marlin firmware I flashed into my Monoprice Mini Delta this weekend. It detects something wrong with the heating pad, IIRC, and then shuts down just in case, so you avoid the risk of burning the house down. @jeremiahtolbert There’s some Gcode I need to run that will reset the tolerances a little more. Still won’t burn down the house, but cheapo hardware won’t cause the error, or that’s what I gather from forums. *shrug* I’ll look into it more on Wednesday, when I don’t have classes… @jeremiahtolbert The Marlin firmware and calibration codes are good and totally worth the upgrade, it’s just, you know, some little issues to work out. The MP Mini Delta’s not a super-great machine, so you need to do a few things to get it running properly.