module cutout()
{
		intersection()
		{
			rotate(90, [1, 0, 0])
			translate([0, 0, -50])
				linear_extrude(height = 100, convexity = 1)
					import(file = "example007.dxf", layer = "cutout1");
			
			rotate(90, [0, 0, 1])
			rotate(90, [1, 0, 0])
			translate([0, 0, -50])
				linear_extrude(height = 100, convexity = 2)
					import(file = "example007.dxf", layer = "cutout2");
		}
}

module clip()
{
	difference() {
		// NB! We have to use the deprecated module here since the "dorn"
                // layer contains an open polyline, which is not yet supported
                // by the import() module.
		rotate_extrude(
			file = "example007.dxf",
			layer="dorn",
			convexity = 3);
		for (r = [0, 90])
			rotate(r, [0, 0, 1])
				cutout();
	}
}

module cutview()
{
	difference()
	{
		difference()
		{
			translate([0, 0, -10])
				clip();

			rotate(20, [0, 0, 1])
				rotate(-20, [0, 1, 0])
				translate([18, 0, 0])
				cube(30, center = true);
		}

		# render(convexity = 5) intersection()
		{
			translate([0, 0, -10])
				clip();
		
			rotate(20, [0, 0, 1])
				rotate(-20, [0, 1, 0])
				translate([18, 0, 0])
				cube(30, center = true);
		}
	}
}

translate([0, 0, -10])
	clip();

// cutview();