This is a bottom plate that will fit a DJI F450 with the fire wheel arms. It is 2mm thick, so very light. Model 3 is stronger and 3mm thick. Here is a top plate by dennisbaldwin http://www.thingiverse.com/thing:60076 which goes very nicely with the bottom plate and that I'm currently using. Any comments and suggestions welcome.
Printed on a MakerBot Rep1 with ABS. Holes should match nice with M2 * 8mm up. Model 3 is stronger and 3mm thick.