Stop bottle from falling out

thingiverse

Sometimes my drink bottles tumble out of the side pockets on my backpack, leaving me with a mess every time. The larger bottles only add to the problem, and I'm starting to notice that the elastic on my old backpack just isn't holding up like it used to. I think it's high time for a solution, so I've designed a little gadget in OpenSCAD that should do the trick. It'll be printed out of PLA, which is strong enough to get the job done. As a bonus, the little tabs on this design double as mouse ears - they're there to keep the device from sliding off the build plate during printing. Just break them off once you're finished and your new gadget will be ready for action.