[Fan failure] Filament molten inside of Extruder cold end.
Hello,
I have some problems with my printer. At first it worked just fine. But in my last print the Cold End fan just stopped soinning and I did not notice it. I am pretty sure that filament got meltet inside the plastic tube. At least I cant stick filament in anymore. I disassembled the extruder and tried to follow the manual for tube exchange: http://manual.prusa3d.com/Guide/How+to+replace+PTFE+tube/82
However I rounded my nozzle with my 6mm wrench instead of unscrewing it. Now I dont see a way to get it off anymore. The extruder also seems to be no longer sold...
http://shop.prusa3d.com/en/3d-printer-parts/25-prusa-nozzle-mk2-full-metal-reprap-hotend.html
Can you guys (and girls) tell me how to salvage this situation?
Thanks
Re: [Fan failure] Filament molten inside of Extruder cold end.
1) That is the wrong extruder. You want this one:
https://e3d-online.com/v6
but you probably only need this kit:
https://e3d-online.com/v6-block-sock-kit
If your heater is salvaged from the original.
2) Removing the nozzle should be done at very high temperatures.
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: [Fan failure] Filament molten inside of Extruder cold end.
Thank you. Yes I did know that you are supposed to be doing this at high temperatures. I let it preheat for PLA for a good 20min. (printed only PLA) Still happened... I will try and get it off again.
In case I have to buy the full kit: Is it 12V or 24V?
Also is it 100% compatible with the rest of the carriage?
And here some info to the failure: I am 99% certain that the fan was lose on the Rambo side. It was not really fixed in the plastic plug for the socket in the rambo. Pretty sure its a problem with these fans since I have read about other peoples failing fans.