group() {
	linear_extrude(file = "", cache = "0.0", layer = "", height = 10, origin = [ 0 0 ], scale = 1, center = false, convexity = 1, $fn = 0, $fa = 12, $fs = 1) {
		square(size = [10, 10], center = false);
	}
	multmatrix([[1, 0, 0, 19], [0, 1, 0, 5], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		linear_extrude(file = "", cache = "0.0", layer = "", height = 10, origin = [ 0 0 ], scale = 1, center = false, convexity = 1, $fn = 0, $fa = 12, $fs = 1) {
			circle($fn = 0, $fa = 12, $fs = 1, r = 5);
		}
	}
	multmatrix([[1, 0, 0, 31.5], [0, 1, 0, 2.5], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		linear_extrude(file = "", cache = "0.0", layer = "", height = 10, origin = [ 0 0 ], scale = 1, center = false, convexity = 1, $fn = 0, $fa = 12, $fs = 1) {
			polygon(points = [[-5, -2.5], [5, -2.5], [0, 2.5]], paths = undef, convexity = 1);
		}
	}
	multmatrix([[1, 0, 0, 0], [0, 1, 0, -12], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		linear_extrude(file = "", cache = "0.0", layer = "", height = 20, origin = [ 0 0 ], scale = 1, center = false, convexity = 1, twist = 45, slices = 3, $fn = 0, $fa = 12, $fs = 1) {
			square(size = [10, 10], center = false);
		}
	}
	multmatrix([[1, 0, 0, 19], [0, 1, 0, -7], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		linear_extrude(file = "", cache = "0.0", layer = "", height = 20, origin = [ 0 0 ], scale = 1, center = false, convexity = 1, twist = 90, slices = 7, $fn = 0, $fa = 12, $fs = 1) {
			circle($fn = 0, $fa = 12, $fs = 1, r = 5);
		}
	}
	multmatrix([[1, 0, 0, 31.5], [0, 1, 0, -9.5], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		linear_extrude(file = "", cache = "0.0", layer = "", height = 20, origin = [ 0 0 ], scale = 1, center = false, convexity = 1, twist = 180, slices = 15, $fn = 0, $fa = 12, $fs = 1) {
			polygon(points = [[-5, -2.5], [5, -2.5], [0, 2.5]], paths = undef, convexity = 1);
		}
	}
}