Looking at what I believe is the patent for Buildtak and doing some research I believe that it is a polycarbonate sheet attached to an adhesive sheet of some sort. Based on that I would think adhering something like this to a glass sheet might be a cheaper alternative: http://ift.tt/2aSWPDL anyone tried this? If so any luck? I am attempting to print PC-PLus which normally comes with a sheet of buildtak (which that they claim is mandatory to avoid warping) but the package I bought didn’t include the buildtak. http://ift.tt/2aYKKyR