This is a stronger latch than the print in place version that I previously uploaded.I had trouble with the all plastic version breaking with my heavier boxes. This model uses a 2mm rod in the hinge. Its modeled to use a coat hanger. Just snip the hanger in segments as long as the latch is wide, and just some plyers to wiggle it through. The latch seems to be working great for me, but im open to feedback on making it better. 

 I use PETG because its resistant to chemicals and such. PLA just wont hold up to constant pressure, chemicals, any kind of heat…