eps = 0.01;
infty = 100;

wall = 0.8;
bottom_h = 0.5;
upper_h = 4.5; // mozna snizit tak o 2 mm, ale to by v jednom tl. byla dira

module button(x, y, h) {
	difference() {
		union() {
		translate([-x/2-wall, -y/2 - wall, 0])
			cube([x+2*wall, y+2*wall, bottom_h]);
		translate([-x/2, -y/2, 0])
			cube([x, y, upper_h + bottom_h]);
		}
		if (h > 0)
		translate([-x/2+wall, -y/2+wall, -eps])
			cube([x-2*wall, y-2*wall, h+eps]);
	}
}


button(7.7, 9.7, 3);

translate([10, 0, 0]) button(7.3, 7.8, 0);