Took the bowden tube off and looked in but couldn't see anything , heated the head up and fed the PLA in by hand , felt it stop , put a little pressure on it and felt it give then it started flowing again so definitely thinking it was a plug between the end of the tube and the head , thanks gr5 for the suggestions, will put it all back together and see if it still flows
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gr5 2,224
What happens if you pull the filament all the way out and put it back in again.
1) Is there a notch in the filament where the hobbed bolt ground it up? If so cut off one inch from the melted end of the filament before re-inserting.
2) If it doesn't come out liquid and hot at the end maybe it isn't even reaching the tip. In this case take off the bowden tube and look down into the print head (remove blue clip and push down before sliding out bowden.
3) Or maybe you have a block at the tip. I doubt it as you are getting smoke puffs. More likely a plug higher up or you ground up filament at the feeder.
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