group() {
	group();
%	linear_extrude(height = 22, center = true, convexity = 10, scale = [1, 1], $fn = 0, $fa = 12, $fs = 2) {
		import(file = "example009.dxf", layer = "body", origin = [0, 0], scale = 1, convexity = 1, $fn = 0, $fa = 12, $fs = 2);
	}
%	group() {
		multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 12], [0, 0, 0, 1]]) {
			linear_extrude(height = 2, center = true, convexity = 10, scale = [1, 1], $fn = 0, $fa = 12, $fs = 2) {
				import(file = "example009.dxf", layer = "plate", origin = [0, 0], scale = 1, convexity = 1, $fn = 0, $fa = 12, $fs = 2);
			}
		}
		multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, -12], [0, 0, 0, 1]]) {
			linear_extrude(height = 2, center = true, convexity = 10, scale = [1, 1], $fn = 0, $fa = 12, $fs = 2) {
				import(file = "example009.dxf", layer = "plate", origin = [0, 0], scale = 1, convexity = 1, $fn = 0, $fa = 12, $fs = 2);
			}
		}
	}
	intersection() {
		linear_extrude(height = 20, center = true, convexity = 10, twist = -57.5288, slices = 4, scale = [1, 1], $fn = 0, $fa = 12, $fs = 2) {
			import(file = "example009.dxf", layer = "fan_top", origin = [0, 0], scale = 1, convexity = 1, $fn = 0, $fa = 12, $fs = 2);
		}
		rotate_extrude(convexity = 10, $fn = 0, $fa = 12, $fs = 2) {
			import(file = "example009.dxf", layer = "fan_side", origin = [0, -40], scale = 1, convexity = 1, $fn = 0, $fa = 12, $fs = 2);
		}
	}
}
