Draw Latch

thingiverse

This draw-latch offers parametric design options and considerable holding force via a cam mechanism. It's ideal for securing items. Tested sizes are limited, though, and additional "give" parameter eases closing. To incorporate this latch into your project, attach the "catch" and "base" parts to your model, then print the "cam" and "latch" separately. If you use non-"give" STL file, no play exists post-closure; experimenting with filament pins may enhance flexibility.