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Old 27-04-2012, 02:01 PM
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ZeroID (Brent)
Lost in Space ....

ZeroID is offline
 
Join Date: May 2010
Location: Auckland, NZ
Posts: 4,949
Quote:
Originally Posted by silv View Post
Hey,

.....
2. rotating the rod:
does anyone know of a detailed picture (maybe ?in a building plan) on how to actually move the rod 1 rpm? ...


Hi Silv, just a bit of clarification here, the curved rod does not rotate. The nut on the rod turns. A barn door tracker can be built with a straight rod that does turn although it won't be quite as accurate in tracking over any long length but the earth only turns 15 degrees per hour so not a real problem. For widefeild it is more than adequate though and a lot easier to build.

Your location tells me you are 18 km from me. Whereabouts in Auckland are you ? Might be able to assist, I have a reasonably full home workshop downstairs. Haven't built a barn door but looks like a fun thing to do .

Cheers
Brent
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