I found the office supply spring clamps for holding the glass build plate in place difficult to clean around so here is my solution. Added files to build 4 clamps at once, should save folks a bit of print time.Recommended material Taulman Bridge Nylon. Set infill for 50% raft on, supports off, Print 4 pieces Tap the hole with 6-32 tap Use 6-32 x 3/8" machine screw. Even if you tighten a 3/8" screw all the way down it's not likely to crack the glass or damage the heated plate.