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thermal runaway with volcano and 65W heater cartridge
- I have a MK3S with 3.13.2 firmware
- I replaced the hotend+extruder with
- OG hemera
- copper volcano block
- E3D 65W high temp heater cartridge (because its 15 more watts, not printing high temps)
- common blue wire E3D thermistor (which should be identical internally to prusa thermistor I have been told?)
- Slice engineering boron nitride paste
- silicone sock
- I started having spiky temperature swings when printing with PETG, which occasionally turned so violent it triggered thermal runaway
- see pic below
- PLA was OK for a while, but now it will thermal runaway while empty and idle at PLA temps
- thermal model is disabled (wont work with a volcano block)
- PID was performed, I tried that several times
- Before I tear apart the hot end again and wrestle with the boron nitride paste, what is more likely, a blown thermistor or blown heater, and
- how likely is firmware being the cultprit?
- I have tried so many different firmware versions which each have a different show-stopping bug. I think I went through at least 6 different versions trying to find one that didn't have any issues.
Posted : 09/10/2023 6:39 am