So far this has been untested, but should theoretically print fine. I don't know the print settings I'd use yet, but I'd start at 2mm resolution and 20% infill. I've included files for the complete object, and each half, but they should be printed at the same time, since they inter-lock.
I printed this last night, and was unsuccessful, the tolerances were too tight, so I've loosened things up a bit and redesigned the latch, since it came out all wonky. I'll leave the original file up for those who want to try it and upload v2.
Printed again this morning and was mostly successful, noticed a few errors I'd made during modeling, and fixed/re-uploaded as v2. Should be the final version.
I'd suggest placing a raft down. Every time I've tried to print it without one the bottom half of the hinge gets bound up since the bottom layer squishes.
I̶ ̶p̶l̶a̶c̶e̶d̶ ̶m̶y̶ ̶s̶u̶p̶p̶o̶r̶t̶s̶ ̶a̶t̶ ̶t̶h̶e̶ ̶h̶i̶n̶g̶e̶,̶ ̶s̶i̶n̶c̶e̶ ̶a̶b̶o̶u̶t̶ ̶7̶5̶%̶ ̶o̶f̶ ̶i̶t̶ ̶i̶s̶ ̶f̶l̶o̶a̶t̶i̶n̶g̶ ̶i̶n̶ ̶s̶p̶a̶c̶e̶.̶
I successfully printed this without supports.