I am having trouble finding a good basic description on how to make my own thermistor table for the thermistor I have. Its an NTC 3950 thermistor. I know that repetier firmware has a table for it, but no matter what # of table I choose, even the one I am supposed to I am like 110 C off when at high temperatures. For example, I want 240 C for my abs filament, however, I have to set my extruder to 350 in order to get that at least measured from my IR handheld thermometer at a very close range to the extruder.
So my question is, does someone have a very good step by step udnerstanding of how I go about chaning something in either my electronics, or making my own table so that I can get accurate temperature readings in repetier host because it drives me nuts to have to figure out what I am actually at each time.