Print as shown in the picture.

0.4 mm nozzle

0.2 layer height

3 perimeters

Use a wooden 6 mm dovel cut to length to connect both parts (or print the 5.8 mm cylinder flat)

Use 3 mm diameter screws to fix it to the door.

The first few times it might be a bit tight but after a while it will be easier to activate.

Enjoy your simple lock