This versatile door and window stopper can be used in a variety of ways to keep doors and windows open, even against stronger wind gusts. It can be positioned in the gap between a door and the floor, keeping it open similar to a standard wedge doorstop. However, it can also be wedged between the door and the wall. Works similarly for both hinged and sliding windows!

I recommend printing the outer part with a flexible material like TPU to protect surfaces, while the inner core can be printed with a harder material like PLA or PETG. Applying the “fuzzy skin” setting on the outer contour of the outer part can also be an aesthetic and functional improvement!

Simply snap both parts together and reinforce with a little glue, if needed.