It however does not have issues maintaining the temperature when it’s not actually printing. I can set my hotend to 215 before beggining my print and it’s happy to sit there.
Other problems with it include under extrusion and extruder skipping, as it seems to have troubles pushing the filament out.
What does this sound like it could be? Does it sound like a blockage? Could a blockage cause temperature issues? I have already tried turning off the part cooling fan as I had a similar issue with that a while back but that has no made a difference it seems.
You say that the temperature is fine when it’s not printing. Have you tried turning on the part cooling fan when it’s not printing to see if that is affecting the hotend?
I had a similar problem caused by loose thermistor wiring, similar to what other people here are suggesting. I used an extra zip tie to secure the wire so it doesn’t wiggle during printing, and the issue was fixed for me.
That looks like a failing thermistor or heater cartridge. You might want to swap out both the thermistor and the heater cartridge at the same time. Had something similar happen to me and it turned out the failure of the one, likely influenced the other to wear out prematurely. The cartridge wasn’t exactly broken, but seemed to have a less consistent response curve. You can test them separately, but they are cheap enough that it is not worth the hassle
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You say that the temperature is fine when it’s not printing. Have you tried turning on the part cooling fan when it’s not printing to see if that is affecting the hotend?
I have, and sadly it did not seem to make a difference as far as I could see.
That’s usually a bad thermistor or thermistor autre breaking.
Hmm I hadn’t considered that the reading could be wrong, I’ll pull apart my hotend later today to have a look at it.
It’s a pretty new printer though, I’d be surprised if I have managed to wear down the wire yet, but still I’ll have a look.
I had a similar problem caused by loose thermistor wiring, similar to what other people here are suggesting. I used an extra zip tie to secure the wire so it doesn’t wiggle during printing, and the issue was fixed for me.
That looks like a failing thermistor or heater cartridge. You might want to swap out both the thermistor and the heater cartridge at the same time. Had something similar happen to me and it turned out the failure of the one, likely influenced the other to wear out prematurely. The cartridge wasn’t exactly broken, but seemed to have a less consistent response curve. You can test them separately, but they are cheap enough that it is not worth the hassle
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Most likely this