Recently having problem with prints lifting off the bed before the print is finished.
Imagine printing a 4” x4” x4” cube, with fill=20%, layers=0.20mm, using PLA with head = 210 deg F and bed = 70 deg F.
About 1 hour into the print, the front of the cube on the bed starts lifting off the bed, which of course affects all layers printed after that.
Is this a PEI failure?
Is it the print warping problem?