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Old 25-10-2016, 08:59 PM
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zenith (Tim)
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zenith is offline
 
Join Date: Jun 2013
Location: Melbourne
Posts: 301
Another barn door tracker

Hi all,
Here is the result of too many clouds, a slapped together manual 1 rpm barn-door tracker. Images 2/3 are 100% crop 2 min exposures @ 24mm (full frame camera) untracked/tracked, images 4/5 are 100% crop 1 min exposures @ 105mm untracked/tracked, images 6/7 are full size of images 2/3.
I was cranking a little fast compared to the second hand on the clock that I was watching (which is apparent by the small trailing in the opposite direction). I also have made a couple of adjustments to make the motion smoother, but overall I was pleasantly surprised by the outcome.
I have a 12V low speed high torque DC motor and motor controller on order from eBay...
Cheers
Attached Thumbnails
Click for full-size image (20161024_204741.jpg)
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Click for full-size image (24mm_2min_untracked.jpg)
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Click for full-size image (24mm_2min_tracked.jpg)
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Click for full-size image (105mm_1min_untracked.jpg)
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Click for full-size image (105mm_1min_tracked.jpg)
23.2 KB71 views
Click for full-size image (24mm_2min_untracked_full.jpg)
34.1 KB66 views
Click for full-size image (24mm_2min_tracked_full.jpg)
175.3 KB75 views
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