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Printing issues ...
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Ok, well a few light bulbs are going off. Thanks to your replies, I was starting to suspect something was wrong with my heat break.
See File_1.jpg. The hole where the ptfe tube slides in is roughly 14.5 mm deep.
When I look at the e3d website (File_2.jpg) , the cross-sections they show for their heat breaks aren't that deep at all.
Because mine is so deep, it's maybe too close to the hot e
by
Kfj
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Printing
Ggherbaz, Thanks for your comment. Between the heat break and the nozzle, shouldn't the plastic be sufficiently molten to continue to flow? And re the remark about ptfe tube length vs a full metal one, does that apply to a bowden setup? I'm probably not catching your drift.
by
Kfj
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Printing
I think you may be looking at the ptfe tubing. The filament is normal right up to the bulge.
by
Kfj
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Printing
That's a good question, I think it's somewhere in the heat break. I'll check it this morning. As I said, I suspect if the ptfe tube is not all the way down the throat of the heat break, there will be a small gap where the filament can melt enough to create that small collar and thus jam.
As I read more, I gather a warm heat sink is not good. It's only mildly warm to the touch, but maybe that'
by
Kfj
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Printing
Looking for help diagnosing what's happening here. It's a new prusa i3 setup, ebay clone e3d v6, with a bowden extruder. 1.75mm, measured ok.
I've tried temps ranging anywhere between 180 and 230, with the same result. I can get a nice flow by hand when I first load the filament, but then flow is weak (curling as it comes out) and then stops altogether when using yhe extruder.
I suspect the
by
Kfj
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Printing