THIS IS A GOPRO SESSION MOUNT FOR RACE QUADS
it was drawn in standard Inch format. and i used simplify 3D to print it with support.
there is now a MM version added hope this works out for ya it was given to me in MM by another guy on here .
this should be printed with some sort of flexi material as it fits tight like a rubber glove.
i believe i used 40% infill on my own