Heyho

This is quite a simple Design :)

In my kids Kindergarden they had a keyhole with a big opening.

Due to "pinch protection security" we had to create an opening <8 mm so the tiny fingers can't insert into the hole.

So I designed this simple adapter to glue in place. If the part that is going “inside” the lock is too long you can simply cut that to your needs with every slicer.

Have fun!