What is the best way to fix a warped bed?

    3D Printing Q&ACategory: General QuestionsWhat is the best way to fix a warped bed?
    Tom Baxter asked 2 years ago

    I know you can put a piece of glass over the metal bed, but I was wondering if there was anything else? I have a rather small print volume and didn’t want to lose that much on my Z axis.

    RP replied 2 years ago

    Having had a similar issue with a warped bed there’s a few options. If you’re worried about losing too much build volume some of the PEI and similar style build mats are actually quite thin and you won’t be adding much to the bed height by using one. Personally I prefer glass but if you have a smaller build plate you can always go pick up a few 12″ x 12″ mirrored glass tiles from your local hardware store pretty cheap.

    If the bed warping is bad enough to transfer through to the mirror (or the mat) you may have to add a few layers of tape (preferably foil tape to better transfer heat.) The bow in the middle of the bed I use most frequently had enough of a bow that adding shims in the center of the bed was the only way to get it level and true without changing out the bed entirely.