PrismSize = 15;

module prism (pos = [0, 0, 0], rot = [0, 0, 0]) {
	translate(pos) rotate(rot) {
		rotate([0, 0, -45]) difference () {
			rotate([0, 0, 45]) cube([PrismSize, PrismSize, PrismSize], center = true);
			translate([PrismSize, 0, 0]) cube([PrismSize * 2, PrismSize * 2, PrismSize + 1], center = true);
		}
	}
}

prism();