door/window stopper slightly over-engineered

thingiverse

was wondering how leave a small opening, after some attempts here is.it's for stop the door or window about a couple of centimeters permit to fresh air goes inside on night timeit's only a performance of an idea long time i mindedevery doors/windows have their specs, so it's a good start for develop someone be worth for you.better print in PETG for a better elastic response to stress