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Old 03-30-2018, 05:07 PM   #16 (permalink)
freebeard
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It's got your attention, eh?

Moons are traditionally domed for strength but the reflections in the sample look more cone-shaped.

They rent the jig so people won't try on their own and make it not work(prolly). I'm sure they would sell the jig as well to anyone setting up a series.

Anyone with a Bridgeport mill can do without it. Like Bucky Fuller said, it's all in the (reproducible) angle and frequency.
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