Inserter (from Factorio)

This is an inserter loosely based on the same item from the computer game Factorio. I made this model for myself, but I'm open-sourcing it for the internet because the internet wanted it.

The one I printed out of PLA can't hold anything, it's too light. I recommend scaling this up, making it out of more durable material, adding weights, whatever's necessary to make it functional.