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I cut some transparent acrylic pencil guides to go along with the 45° Triangle Ruler: The guides along the rear are the 3D printed versions from a decade ago. The three transparent guides taught us: So the engraved ring on the two in the front row carries a cheerful Sharpie color to make them stand…

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Now KE4ZNU-10 won’t become a lithium fire in the attic stairwell…
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The prices suggest folks who need Pi Tapes need them /bad/
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All swoll up, as the saying goes
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Another knockoff Neopixel failed in the usual way
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The boss … snaps neatly into the unpunched hub hole of a hard drive platter
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That was completely uneventful, which is pretty much the whole point of good fixturing
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The clamp must position the tube’s centerline so the envelope will clear the V groove