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Old 02-01-2020, 11:10 PM
ausastronomer (John Bambury)
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ausastronomer is offline
 
Join Date: Mar 2005
Location: Shoalhaven Heads, NSW
Posts: 2,508
I would use at least 25mm diameter aluminium poles on a 12" scope.

25mm x 1.2mm poles are a lot stronger and will give greater stability at the top end than 20mm x 1.6mm. 25mm x 1.6mm would be the best choice IMO.

My 10"/F5.3 has 20mm poles and in hindsight I wish I specked it with 25mm poles.

Cheers
John B

Last edited by ausastronomer; 02-01-2020 at 11:21 PM.
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