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09-11-2014, 11:57 AM #1
General Question About Hot End Cartridge Heaters
Hey guys!
I think the ceramic cartridge heaters that are being used in place of resistors for hotends are pretty neat. I just want to try and understand them a little more and haven't been able to find info or datasheets on them.
I have a question about their operation. From what I gather from a few web searches, it seems like they are ran at 12V and the temperature is controlled by changing PWM values which increase the percentage of current it receives and using a thermistor to regulate the PWM to maintain temperature.
What happens if you run it at 12VDC and dial the current to a certain value with a potentiometer to set the heater cartridge at a fixed temperature?
Why we would prefer to depend on a thermistor to regulate the temperature instead of setting it to a fixed current and temperature?
New to 3d printing looking for...
05-20-2024, 12:56 AM in Tips, Tricks and Tech Help