Cutting a circle out of balsa wood with a table-top CNC router I built. This test was done with a long and dull 1/8" end mill purchased at harbor freight. It kicked up a bunch of burr around the edges of the cut. There is another video with a much better cutter... The router itself is a dewalt laminate router and it is controlled by a custom 3 axis gantry. The gantry is driven with steppers all controlled from EMC2.