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It’s really “pitch”, but I can’t make a case for being that pedantic
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A target directly on Mirror 2 showed the beam was badly off-center
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A piece of right-angle polypropylene backed with hot pink vinyl
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Another reminder why you must never, ever run your laser unattended
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The snake hadn’t yet reached operating temperature
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Rather than fight, I switched to a battery with more capacity
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Laid out a quartet of elevators on scrap 3 mm acrylic
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The machine has no detectable trace of backlash
The Smell of Molten Projects in the Morning 