Corner bracket for glass bed Anet A8

I was inspired by design http://www.thingiverse.com/thing:645203 but inevitable it didn't fit my printer bed and glass size!

I had tried using bulldog clips but these interfered with the auto bed leveling sensor some times.

As you will see from the drawing I measured the distance from the edge of the heated bed to the glass edge when the glass is centered. In my case it was 12mm from the front/back edges and 4mm from the side.

When you load your design in the slicer you will need to f