Toodler Proof Door Catch

thingiverse

This design withstands repeated closing or opening of a door by an adult without cracking, yet remains robust enough to keep any doors sealed if locked. Print it on its side since layer adhesion prevents layers from separating. Make sure to print with maximum infill - 100% has proven the strongest during testing. Each one in my home is rigorously tested 20-30 times daily and has held up for nine weeks at this writing.