cylinder($fn = 0, $fa = 12, $fs = 1, h = 1, r1 = 1, r2 = 1, center = false);
	multmatrix([[1, 0, 0, 1], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 1, r1 = 0, r2 = 0, center = false);
	}
	multmatrix([[1, 0, 0, 2], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 1, r1 = 0, r2 = 0, center = false);
	}
	multmatrix([[1, 0, 0, 0], [0, 1, 0, -11], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 1, r1 = 5, r2 = 5, center = false);
	}
	multmatrix([[1, 0, 0, 0], [0, 1, 0, 11], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 10, r1 = 5, r2 = 5, center = true);
	}
	multmatrix([[1, 0, 0, 11], [0, 1, 0, -11], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 5, r1 = 5, r2 = 1, center = false);
	}
	multmatrix([[1, 0, 0, 11], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 5, r1 = 5, r2 = 0, center = false);
	}
	multmatrix([[1, 0, 0, 11], [0, 1, 0, 11], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 8, r1 = 5, r2 = 5, center = false);
	}
	multmatrix([[1, 0, 0, 22], [0, 1, 0, -11], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 5, r1 = 0, r2 = 5, center = true);
	}
	multmatrix([[1, 0, 0, 22], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 5, r1 = 5, r2 = 0, center = false);
	}
	multmatrix([[1, 0, 0, 22], [0, 1, 0, 11], [0, 0, 1, 0], [0, 0, 0, 1]]) {
		cylinder($fn = 0, $fa = 12, $fs = 1, h = 15, r1 = 5, r2 = 5, center = false);
	}