Resetting at preheat or filament load
Guidance welcome -- Mk3s reboots on a filament load or preheat. I've the bed turned off for filament loads.
I've replaced the hotend thermistor/heater cartridge. Is this a rambo or psu issue?
RE: Resetting at preheat or filament load
A couple of questions :
When you switch on the printer, the temperatures of nozzle and bed are correct ? ( i.e. room temperature ).
Are you able to start heating the bed without problems and the screen shows a progressive increase in the temp. of the bed ?.
If the answer to both questions is yes, and the hotend thermistor//heater cartridge are OK. then it must be the Einsy board, as you suspect.
Just to be sure about that, if you have access to a multimeter, disconnect the cables of the heater cart. and thermistor hotend in the Einsy board and check the resistances of both components ( around 100-125 KOhm for the thermistor and 14-15 Ohm for the cartridge).
Additionally, with the cables of the heater cart. disconnected, see what happens when you try to load filament ( or heat the nozzle).
RE: Resetting at preheat or filament load
Thank you for responding!
A couple of questions :
When you switch on the printer, the temperatures of nozzle and bed are correct ? ( i.e. room temperature ).
Correct. They register correctly.
Are you able to start heating the bed without problems and the screen shows a progressive increase in the temp. of the bed ?.
I couldn't heat the bed on a mk3 without the nozzle, but shutting off the bed heating on the filament reload didn't get rid of the issue... I think I ruled the bed out.
If the answer to both questions is yes, and the hotend thermistor//heater cartridge are OK. then it must be the Einsy board, as you suspect.
I replaced the complete hotend with another V6 with a hardened nozzle I had sitting to the side to remove the extruder from the equation
Just to be sure about that, if you have access to a multimeter, disconnect the cables of the heater cart. and thermistor hotend in the Einsy board and check the resistances of both components ( around 100-125 KOhm for the thermistor and 14-15 Ohm for the cartridge).
They both test within those specifications, and the same as the ones i removed.
Additionally, with the cables of the heater cart. disconnected, see what happens when you try to load filament ( or heat the nozzle).
I'll try that next. Running a voltage check on the PSU will probably not reveal anything. I don't think I have an equivalent PSU sitting around to swap out. If it's the EINSY rambo, I may be convinced todo a mki3.5 upgrade rather than buy a new rambo... if its the PSU.. well you just gotta buy one of them. Am I missing anything?