Simple corner to safely hold a 3mm glass plate on top of the Anet A8 (and possible others) hotplate. Uses the original M3 screws with springs below.
Update 2017/01/26: Added heavy duty version
Will work with 3mm glass planes on a 3mm high hotbed. Print at least two corners for best results use 4 corners (4x corner file included).
For best results, print in ABS. Will also work in PLA if using a low temperature.