Stackable Milk Crates with Print in Place Pegs

This is a remix of LiL_PPJs Milk Crate (https://makerworld.com/en/models/43356-mini-milk-crate?from=search#profileId-44533).

I added pegs in the bottom of the crate, that will drop down, if the crate is not standing on a surface. Thus, if you stack a crate on another, the pegs will drop down and semi-lock in the crate below, preventing sliding off on one side.

This is a test for the mechanism.

There are 8 pegs, they require no supports, if there is a problem with a peg, there is a hole in the top, with which you might clear the peg, so it can also drop via gravity. 

I have made two sizes: 10cm³ and 20cm³, all three lengths (width, depth, height) are the same length

I hope you like this method to effectively stack your decorative and organzing milk crates.