door latch from: https://hpi.de//en/baudisch/projects/metamaterial-mechanisms.html
You can print it fully assembled or print the latch extra and glue or nail them together.
If you have a printer with a single extruder, we would recommend printing the parts separately. The reason is that the assembled version requires supports and Ninjaflex is hard to separate. Check the video to see which areas should be glued.
cell size: 5 mm
hinge thickness: 0.4 mm
Nozzle: 0.4 mm