Hi. Im problem with mid print error. In random time printer definitely freezes on command in repetier “Heating extruder”. But repetier host is not frozen and continuing in print. Some people was suggesting it could be power fluctuation so I added cappacitor to power wires. It helped and printed ok. Now after two weeks maby the error is back. The strange thing is that it stoppes on the same command. I use pingpong communication. But I only enabled it in Repetier. Not in firmware (I didnt find where to enable. Maby its enabled in default)
Honestly, I’d check all wiring. Especially to your heater/thermistor. If any of those get disconnected, a lot of hosts tend to disconnect from the printer and shut down.
the host doesnt detect any disconnection…host continues printing… Just printer is stuck. I think its somewhere in Arduino, firmware or whatewer