Automatic Latching System

thingiverse

I'm attempting to make an automatic latching system for the lid of my heated build chamber. The goal is to have a mechanism that a handle is pushed into which latches, and unlatches when pushed on again. Instructions It's not pictured, but there would be a rubber band or spring pulling the top of the hook arm to the left. Please make suggestions or modifications to my design! I'm kinda stuck here.