Switch button for Air Heater

The buttons on my air heater broke and I couldn't find suitable replacements — other models either didn't fit the housing or were too awkward to operate. So I designed my own, modeled directly after the original buttons. The model is oriented to print on its side, which improves layer adhesion and provides better resistance to stress during everyday use. Supports are included in the default print profile, but you can try printing without them if your setup allows it.