Its the exact same 100k Thermistor (I purchased a few of them when I upgraded to a heated bed) , I just replaced it with a different one in case the first one had fried.
I checked the 4.7K resistor, that was what fried, thanks, would never have checked that...
Unfortunatelly I seen to have another issue now, the printer pauses between each straight line for about 2 seconds... Any idea what could cause this? I already tried re-replaceing the arduino, that did not help...Edited by bob
I would put the old thermistor back in there. There are probably a dozen differen types of "100K thermister". They all have very different tables that convert resistance to temperature.
Do you still have the 4.7K resistor installed? Maybe that got burned out. When everything is hooked up, what is the actual voltage on either side of the 4.7K resistor? There should be a voltage divider with the 4.7K resistor and the 100K resistor. So if one is 4.7K and the other is 100K then the 5V should get divided (well multiplied really) by ratio R1/(R1+R2) (not sure which is which and too lazy to check schematic, sorry).
That means either 0.22V or 4.77V assuming the thermistor is 100K ohms when you take the measurement.
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