A snap-action latch for balcony and terrace doors and windows.
It is suitable for the Roto 6 2812 819 20 model, with a size of 30 x 18.5 mm.
I designed two models respectively: one with a lock tongue height of 7 mm, and the other with a height of 9.4 mm.

When printing, PLA material is used, with a fill density set to 75% and support structures added. Although its lifespan may be limited, it currently works extremely well on our own doors.