module shape() { difference() { translate([ -35, -35 ]) intersection() { union() { difference() { square(100, true); square(50, true); } translate([ 50, 50 ]) square(15, true); } rotate(45) translate([ 0, -15 ]) square([ 100, 30 ]); } rotate(-45) scale([ 0.7, 1.3 ]) circle(5); } import(file = "example009.dxf", layer = "body", convexity = 6, scale=2); } // linear_extrude(convexity = 10, center = true) shape();