Anyone has any issues with their bed warping? 

If yes, how did you fix it? Did you replace it? Is there one on the market that doesn't warp?

Not heard of a bed warping before. What material is it? Mine is a smooth PEI covered steel sheet

I think it is the aluminum plate itself. I had several successful prints but it started scraping the prints in the center of the bed.

Hi kohfe,

Use a 3mm mirror bed and print ... no more problem !

Thank you

Mine is warped too, manual mesh bed leveling or an auto bed level sensor fixes the problem.