I am a new 3D printer user and having some difficulty with my prints lifting off the bed. I have a Ender 5 running th3D firmware with a auto leveling kit. The problem I am having is after the first few layers the print lifts on the corners.
I am printing using PETG and have tried nozzle temps ranging from 235 to 250 (suggested mfg temp). The bed is off and I am printing on blue painters tape with some glue stick as I have read that can be helpful with PETG. The problem is don't know what aspects causes the lifting so I am not sure what to adjust.
Anyone have some advice?