Spare Print Plate Holder for Prusa I3

I print with 200mm x 200mm mirror tiles that I coat with PVA glue so I cycle my build platform between uses. This is a holder for the 3 build plates I am not currently using. The gaps for the plates are 6mm and can handle the 200x200 plates but I wouldnt use much bigger in it.

## Revision 2
The STL for V1 can fall over if bumped hard enough. I have lengthened and widened the base in V2 as well as removed some of the extra unwanted print material. I haven't tested the revised version so let