PETG corners of prints bending up at around the 1.3mm of thickness
I'm having trouble getting consistent results on a large PETG print. Sometimes it prints without problems, sometimse a small part of a corner will "lift up" a bit, and today I had a lot of pull-up on both corners. The 1st layrer is always good. I slowed down the speed to 80% and set a thickness of .2mm, which for both PLA and PETG produces a great 1st layer.
My question is what parameter or design change is needed to discourage this problem? Should the bed tempurature, which is at the default setting, be changed? This is a 14 hour print, and it takes about 2 hours to get to the "lift up" problems to show up.
Pictures enclosed. In paritular, note that the percent of fill changes depending on if that section of the part will have metal screws or nuts going throught it. Open areas are 20%, the parts that have metal fasteners on them is 50%. IDK if that makes a difference or not.
Gratuitous pix of the project, a StarLink Mini holder, included. TIA
RE: PETG corners of prints bending up at around the 1.3mm of thickness
Do you have a printing plate with PEI film?
How high is your first layer?
Do you use Z-offset correction?
Do you use liquid glue?
How cold/warm is it around the printer? Draughts? Underground?