HotEnd Temperature Sensor
I have been having a wonderful time with my Prusa i3 Mk2. Until I messed up.
I had a failed print, and the head was covered with a blob of molten PLA. I used some pliers to pull it off, and in the process pulled off the wires for the temperature sensor on the hot end. They came loose from where they were soldered to the red/black wires that go down to the electronics.
No problem, right? So I soldered the wires back on the red/black ones, and yet I still get no temperature reading and can't fire anything up. Same reading as if it was not connected. Changed polarity (just in case) and same result.
I would like to fire up the hot end (even without the temp sensor) to melt off some of the plastic, but it of course prevents that (since it can't tell the temp which would be unsafe unattended.)
Any ideas? Do I need to replace the thermal couple? If so, how can I override the temp sensor so that I can remove some of the melt on the hot end?
Thanks in advance,
Aaron Seltzer
Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss. If you solve your problem, please post the solution…
Re: HotEnd Temperature Sensor
Can you put a temporary resistor in place of the thermistor?
guessing try 33k... or use a 100k potentiometer and dial in your preferred DISPLAY temperature... beware this will not control the hot end temperature, so you will have to be aware and switch the power off before it gets too hot.
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: HotEnd Temperature Sensor
Thanks Joan, I will give that a try. If I determine the sensor is an OPEN, and needs to be replaced, which sensor is it? When I google I get a bunch of different ones, even for the E3Dv6.
--ajs
Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss. If you solve your problem, please post the solution…
Re: HotEnd Temperature Sensor
To be honest Ajs. I dont recall which ones i got. They were cartridge type to go with the later larger heatblock.
Other than that. Sorry... no idea.
Joan.
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: HotEnd Temperature Sensor
This is the thermistor cartridge: http://e3d-online.com/Electrical/Components/Thermistor-Cartridge
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…