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Ultimaker original thermocouple show consistent but too low temps


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Posted · Ultimaker original thermocouple show consistent but too low temps

Hi,

I recently got into possion of an Ultimaker original.

After I cleaned it up and it passed the Cura checks, I started printing but noticed the sweet-ish smell of burning PLA. I checked the temp and it looked normal but when I measured with my IR thermometer I got values of around 280C ca 50C higher then I intented to print with.

I printed tethered with 50C lower temp and the heating curve was not a smooth as my e3dV6 but still ok and the burning smell was gone.

There were no min temp or other temp halt errors so Im a bit puzzled by that behavior. I thought of a wrong thermistor table but I wouldnt expect that from an Ultimaker since I didnt mess with the firmware.

Anyway has someone ever seen something like this?

and secondly im thinking of switching to a normal 100k thermistor that I have laying around, that shouldnt be an issue even with the 19V electronics right?

Cheers

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