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10-20-2020, 06:01 AM #2
was there a little plastic ptfe tube in the hotend when you removed the original nozzle ?
If so it;s either not there any more or it;s been pushed up the heatblock.
The other thing it might be, is that the new nozzle ha sa shorter thread than the original - not all nozzles are the same.
In fact there seems to be at least 3 or 4 different designs. So just check that.
If the thread on the new nozzle is shorter than you need a longer guide tube.
Basically what's happening is th filament should be guided by a narrow tube to the top of the thread on the nozzle - and for some reason you now have a gap in the feed system before the molten plastic hits the nozzle.
That causes the lump at the end of the filament and really buggers things up - as you've discovered :-)
New to 3d printing looking for...
05-20-2024, 12:56 AM in Tips, Tricks and Tech Help