This is a heavy duty cage latch which I use for critter cages.

You may need to print the pin and handle by itself for best results.

Print all parts, Place pin in keeper, carefully glue handle in place. I used superglue.

The hole in the catch is extra big and sloppy to allow it to easily operate when the wood is all wet and swolen.

You can see a YouTube video of it in action at https://youtu.be/LfDIh8gLeMs