Dangerous territory for me; I am not an engineer.That said, see attached pdf. Could a cable or rod strung internally in the hollow pole/gnomon be placed under tension, causing the pole to bow upwards against gravity? The rod or cable could have a turnbuckle to make the tension adjustable, until it equally counteracts the droop from gravity.
Must do some experimenting first, so that it does not bend pole unexpectedly sideways, or helically.
-Bill
Carmichael Pole.pdf
Description: Adobe PDF document
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