Summary

As promised , here is the flat top shelf mount for the quick change mount system i posted a while back. in conjunction with my quick change mounting system (http://www.thingiverse.com/thing:3749886) if printed in ABS and used with my mounting bracket at 100% infill each shelf bracket has an estimated minimum static load value of 70lbs before permanently distorting or breaking. if printing at 50% cubic infill with 2 perimeters and 0.4mm nozzle the safe load value is 65lbs. if you were to make this bracket from aluminum the static load value is over 500lbs.