He3D K280 Glass-bed Bracket

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2871644.

I assembled a HE3D K280 and found the glass bed has no brackets. The pictures I've seen online of folks using it show them taping the glass down with masking tape. So I came up with some small brackets that fit every other hole around the bed and hold it in place.