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I’m sure something different has come along in the last third of a century
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The top view shows the height map press nested inside the cutter blade
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It turns out that a PGM (“Portable Graymap”) file is almost exactly what we need
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Low res also speeds up the OpenSCAD processing
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Some doodling indicates that a simpler solution may suffice
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The fix requires jamming the proper value directly into /etc/X11/xorg.conf
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The negative wire was discolored all the way from end to end and couldn’t be soldered
