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pinched print

Posted: Mon May 06, 2019 5:17 pm
by chrisbare
I have a flashforge creator pro and it has started to have an odd printing error.
The model shown is a straight cylinder, but after about 10 layers, the next 15-20 layers are slightly smaller, then it goes back to normal.
Does anyone have any idea what could be causing this? The machine is several years old, so it might be time to replace belts or something, but i'd ratherf not start replacing parts at random.
bad_print.jpg

Re: pinched print

Posted: Tue May 07, 2019 9:27 am
by wirlybird
My initial thought is it has to do with temps. you gave no info on material, temps, speeds etc.

Also notice that the area is lined up with the holes in the back plate. May mean something may not but curious.

Re: pinched print

Posted: Tue May 07, 2019 1:03 pm
by zemlin
PLA? I'd look at lowering the bed temp.