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re: The Official 3D Printing Thread
Posted on 1/26/21 at 10:13 am to DJNOS1978
Posted on 1/26/21 at 10:13 am to DJNOS1978
is your filiment coming out of the extruder bit into from the extruder gear causing friction in the ptfe? I would first just loosen the spring knob a loos as you can to see before cutting the spring. and cut just 1/4 or 1/2 rings off at a time.
1
Posted on 1/26/21 at 12:30 pm to CarRamrod
To be honest I am not 100% sure what the issue is. Filament does come out of the nozzle somewhat smooth but with a lot of tension. If I push by hand at the extruder there is serious tension there. It should not be that much tension to push filament through the nozzle.
What is weird is that I am used to hearing the filament back feed at the extruder when there is too much pressure (at least from my custom extruder builds). It has to be somewhere in that dang tube.
Now I do notice this a lot more when I am doing prints with supports and it retracts a lot. So you are probably correct.
The extra PFTE tube that I put in the nozzle has not worn out yet. Which is strange to me. Normally when that goes out the filament is jammed and I have to replace the entire extra tube piece.
I also did notice that on a 17 hour print that about 15 hours in the print it failed. The next morning I came back and somehow the tube connector detached from the top of the hot end heat sink. So there was a ton of filament unwound between the extruder and hot end.
What is weird is that I am used to hearing the filament back feed at the extruder when there is too much pressure (at least from my custom extruder builds). It has to be somewhere in that dang tube.
Now I do notice this a lot more when I am doing prints with supports and it retracts a lot. So you are probably correct.
The extra PFTE tube that I put in the nozzle has not worn out yet. Which is strange to me. Normally when that goes out the filament is jammed and I have to replace the entire extra tube piece.
I also did notice that on a 17 hour print that about 15 hours in the print it failed. The next morning I came back and somehow the tube connector detached from the top of the hot end heat sink. So there was a ton of filament unwound between the extruder and hot end.
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