7 months after buying, I still haven’t printed anything with my printer. This weekend I upgraded the firmware to the Mrisoc “Professional” firmware and updated the TJC display. It all appears fine on the surface but when trying to follow a calibration video tutorial (here), my nozzle just dropped onto the board and the X/Y/Z values began to flash. So even though I have done Auto Home and saved settings multiple times, it seems to me as though the firmware has either lost the home settings, rebooted, crashed, or something…
I think the same thing happened yesterday resulting in my bed being scored and the nozzle ripping the bed up at one point.
Actually the same thing happens every time I Auto Home. I move the Z-axis up, Auto Home, then let the printer sit there for several minutes. The nozzle just drops to the bed and then the X/Y/Z values start to flash.
What is happening here?