So Im terrible at cutting paper and won't have access to a laser cutter anytime soon so I tried to 3D print the backplate which actually came out better than expected.
I had so print the plate in three pieces because i only have a 200mm^2 build plate and toleranced them how i thought i should
http://imgur.com/CcBazrs
The end product came out mostly fine except I overestimated the spacing between the plates by about a millimeter which doesn't bother me all that much.
http://imgur.com/JHRVTnH
Edit:lolhowdoespostpictures?