Infrared thermometer might not tell the truth entirely. Uninstall the thermistor and if you have a multimeter of some sort, check the resistance of it. It should read something around 100kohm in room temperatures (+20C or so).instasquid wrote:JTa: I have an infrared thermometer which says the tip of the hotend is only 95C instead of 195C. So that seems a likely culprit. Thanks!
What do I do to fix the termistor?
There should be replacement thermistor in your Felix kit? I'm actually using the thermistor that came with the E3D hotend. These are glass capsuled and the one I installed has not failed yet, even after doing high temps (+260C and above) for long prints, something the ones that came with Felix could not handle.
This thermistor issue is too common to be coincidence. Hopefully they'll replace the current thermistor model shipped with Felix with something better in future, it sure makes this great printer look bad.