I have to figure out if the thermistor is actually damaged from a botched hot end job or if I’m just too fuckin stupid to hook it up right.

ironically the cad side is mostly easy (been using autocad since 1993 and solidworks/tinycad/freecad off and on… the design stuff isn’t the hard part, it’s the electronics side that challenges me. started with a stock cr10, upgraded the bed heater, ran it mostly off usb/octo pi for years… but when I tried to upgrade the hot end for tpu and other stuff things went sideways.