Nick Leindecker of the Stanford Optical Society shows Laser Craze, a laser cutter that is controlled by two knobs much in the way an Etch a Sketch works. At Maker Faire Bay Area 2011 he allowed attendees to try out his invention on various burnable surfaces, while also showing his LED creations.
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You’re burying the lead here. That’s the first laser cutter I’ve seen where the Y gantry is cantilevered. More on that, please! That solves a TON of issues with whether to lead-screw, or double steppers, do they have focusing issues when fully extended, etc.