Toddlersafe secret cupboard maglock.

thingiverse

This is just a basic concept, but it needs more solid construction. I think the hidden safety lock is a great feature to keep toddlers from rummaging through cabinets. You'll also need neodymium magnets, which come in a 10x10x5mm square size. If you want to secure other things, just add a "key" to the design. Here are some basic instructions: * Left-handed cabinets require a specific configuration. * You only need three printed parts and an extra magnet. * Make sure you have one regular screw and three of its corresponding holes, which should be 4mm in diameter.