Update. Adding two fans, one on each side of the bed blowing air along x=0 and x=250 edges, helped. But still had some deformed corners for the first 5mm or so. Dropping the HPB temp to 55degC from 70degC gave me even better result but still slight defect. Will try to drop that to 50degC, shift the ...

Tried the glue but I just can't get a nice even layer and that flat first layer just didn't look good at all. So I ended up with hairspray that gives me a nice smooth first layer. So I re-orient the enclosure 45 degree (which I think changes the corner that get the least airflow to the one on the fr...

I used 4 clips, 2 on left (coord ~ Y=0, X=10 and 190) and 2 on right side (coord ~Y=250, X=10 and 190).
The clips inside edge flush against edge of glass.

I usually do two clips, diagonal pair, at about the same time. Then I do the next diagonal pair.

Thanks for all the replies and feedback. The material is PLA. Overhang is at slightly above 45 degrees. I have tried with several different orientations and, yes, the corners that curled the worst are usually the ones that are in the rear. I will try slowing down the perimeters and adding a small fa...

Help! New to 3D printing and still trying to learn. I have this problem on an enclosure that I am working on. Two corners were ok, two corners have problem shown in the attached image. I can't figure out why. I tried Wipe as well as Coast for 0.5mm, didn't make a difference. Simplify3D. Some params ...