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Making a 20" Gregorian.
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21-07-2018, 09:11 AM
Billyboy78
(Bill)
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Join Date: May 2018
Location: CRESTMEAD Brisbane
Posts: 103
Hopefully a pic will appear courtesy of my whizz kid daughter.
What you see is the glass, spherometer , concrete grinder, turntable driven by a couple of drill presses, and in the background parts of the GEM.
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