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printerfan

Hot End Smoking!!!!

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I printed a 17 hour print and it came out fantastic. I let the printer cool for about 30-45 mins before starting a new hour long print. After about 10 minutes I did not hear the printer start and went to check on it. Tons of smoke was coming out of the hot end and the printer had not moved!

I turned off the printer and unplugged it. What should I do?

 

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What printer do you have? I'll assume you have a UM2.

You say the nozzle did not move. Do you mean it stayed at the home position (rear left) or at the print start position (front left).

Was there any filament extruded? Did the feeder grind the filament?

 

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Its an UMO with official heated bed installed. Printer is working again, I took apart the nozzle there was no clog and filament was able to pass from Bowden tube all the way out the aluminum block, I took out the thermocouple and tested it: worked fine, I checked the PEEK insulator: no deformation or melting. Everything checked out fine and now its working. The amount of smoke was insane and it was grey smoke, so maybe it was moisture???

 

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