Intermittent Mintemp Bed errors, where to buy thermistor?
I have a new Mk2s, built last weekend. Has been operating fine until updating to 3.0.12 firmware today. Now I'm getting MINTEMP BED errors intermittently. Sometimes restarting it will fix. The bed is heating for sure. When printing I can see the bed temp will intermittently change to something lower. It'll be like 56..55..19..54..56..55..29..55...
So, I'm guessing the firmware update is unrelated and it seems like an intermittent connection to me but where? I reseated the thermistor connector at the controller end and it seems fine. Thermistor is still firmly taped down under the bed. I can't check the actual wires *at* the thermistor since I don't have any kapton tape.
I don't see one listed for sale from Prusa. Does anyone know the specs on the thermistor or where I can buy one? If I've got to take it all apart I'm thinking it's a cheap enough part I should just replace it while I'm there.
Re: Intermittent Mintemp Bed errors, where to buy thermistor?
inside the firmware the temp sensor for the bed is defined with type #1:
1 is 100k thermistor - best choice for EPCOS 100k
but it's most likely that your problem is related to a broken cable between thermistor and rambo board... or maybe the connector got loose (or is badly crimped).
dem inscheniör is' nix zu schwör...