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Entombing that mess with a squirt of hot melt glue
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A small improvement: add a snippet of heat shrink tubing to the screw in the L-shaped hold-down clamps
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Alas, when I went to the parts bin, that’s the value I didn’t have any of.
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Once a year you gotta clean the crud out, whether it needs it or not.
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I cut two transparent disks from ordinary electronics packaging material, plus a red disk from the Primary Red filter material mentioned there…
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Dragonflies date back to the Age of Dinosaurs
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When I checked the package, most of the dead-on-delivery cells had swollen bottoms
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Bottom line: using the ATmega168 hardware SPI provided a factor-of-15 speedup and serial digital input, too.
The Smell of Molten Projects in the Morning 