Spurious thermal anomoly report
Hi people, Advice please.
I recently fitted a new fully assembled hotend from E3D (standard nozzle, heatsink, thermistor and heater, standard temperature range) and also upgraded my firmware to 3.13.2.
It is now printing - happily, I'm pleased to say - but when I went to change my nozzle, it was not a happy bunny. I heated it up to 250°C, and then applied my adjustable spanner to the hotend to prevent rotation, and a small rotary spanner to the nozzle.
Three times a tried this, and as soon as exerted any pressure or torque at all, the printer started screaming at me about thermal anomolies, and cut off the heating.
I've never had this before, despite changing nozzles quite frequently, and I'm not sure how to proceed. Is there something else I should do to disable this new feature?
Because a lot of the prints I do don't need great detail - a 0.8 nozzle works fine for them.
Many thanks,
Paddy
RE: Spurious thermal anomoly report
Don't know if it's related but I've started to get this after updating to the latest firmware and software. Never had it before.
RE: Spurious thermal anomoly report
This edition of the firmware seems to be producing a lot of temperature-based errors, from looking around the forum(s).
I hope it isn't too long before they issue a correction, cos I want to change my nozzle!
RE: Spurious thermal anomoly report
Having read many forum threads, came across one that talked about doing a thermal model calibration fixing this issue for some people.
Prusa thermal model calibration
RE: Spurious thermal anomoly report
Perhaps you should disable these warnings temporarily if you want to change the nozzle and touch the hotend with (heat conductive) metal tools. This messes with the thermal model. The commands to disable the warnings are documented here.
RE: Spurious thermal anomoly report
Thanks Robin and Walter I have now included M310 S0 in my pre-print output, and that particular problem has gone away for now.
But there's a new one - I'll start a new thread for that. I can't get the temperature of the hotend above 230, and printing at 190 (for a filament whose range is 185-195) after 10 mins or so, the temperature starts to slowly drop at about 5 degrees per minute until the print fails with a different thermal anomaly error, when the nozzle temperature is 20 degrees below the reported temperature.
I suspect a loose connection at the Einsy board.