Thanks for help. Looks like valid cause of my problems. I will try it on next time.
Thanks for advice about selected design. Do you have any recommendations about replacament for current fan adaptor ?
Thanks for help. Looks like valid cause of my problems. I will try it on next time.
Thanks for advice about selected design. Do you have any recommendations about replacament for current fan adaptor ?
I'm still using the one that came with my UM although I repaired it a bit with kapton tape when I accidentally melted part of it. It is still in the same shape as the original.
Thanks, I will try it when I repair my Ultimaker (I posted new topic)...
For now no printing for me :( (filament is gluing to hot end every time it's starting or retracting or moving over print, which destroys every print)...
(filament is gluing to hot end every time it's starting or retracting or moving over print, which destroys every print
Sounds like something is wrong with your nozzle - maybe some gunk on the tip or maybe it got damaged. I'd look at it with a loupe. Or reading glasses. Or a microscope.
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illuminarti 18
You need to go into the advanced settings and increase the minimum layer time. The problem is that the plastic is not having time to cool properly before another layer gets laid on top of it, and as a result it deforms.
Also, a couple of things to consider about the design itself - I've never tried that fan adaptor, but it may not fit on your printer - it's an old design that predates the current hot end. If you look at the rendering of it fitted on the printer, you'll see that the hot end shown is different - it doesn't have an exposed tube between the peek insulator, and the aluminum block. So the height of the duct opening may not be correct for your new hot end.
Also, I've heard it said that this design doesn't work well for the stock fans because they can't compress the air enough to handle reducing the output opening to such a relatively small size.
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