Interlock module for Modular Drawers 2

I like the drawers, but I wanted the interlocking modules to fit really tight, so I designed my own. The modules fit really tight so be warned if your printer is not accurate. The drawers fit loose and slide easily.

I also created a part to mount the modules under a shelf or hang from anything you can put some screws into.

Holes are 3mm, of you concerned about weight you could use two of them.