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13-05-2014 #11
Last Activity: 29-07-2017
Mike all laser cutters will cut with a draft angle on the edge and not 90 degrees to the surface. this is down to the focus lens. The lens takes the 1mm wide co2 laser beam and concentates the beam down to a focused ~0.1mm dot. There is only a narrow range in which the beam is in focus, so with your 6mm sheet fir example maybe only 1mm is in focus then the beam starts the spread apart. Its this spreading of the beam that causes the non straight cuts. Hope that made sense?
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