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Old 20-02-2007, 07:34 PM
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Escortitis
George

Escortitis is offline
 
Join Date: Feb 2007
Location: Greenwood, Perth WA
Posts: 72
Mount update

Back again,

Got the electronics sorted out and have managed to get 9000 steps over 15 degrees. Reset is 45 secs, and the electronics give me fully adjustable 'distance per step' but the timing pulse is fixed to 2.5 per/sec (not smart enough for that). The speed controller needs cooling at those figures, and quite abit at that!! (maybe lacking some smarts there too!)

So now i have a eq platform of sorts, but no scope. Never fear, i took the lens off a V-gear ccd and stuffed it up an old 135mm Minolta film camera lens. Sat that on the trusty block of foam (reads camera mount), found some stars and.........................spent a long time getting focal lengths right.

I think the area is top part of M42, i took 240 secs at normal exposure using K3ccd3, put it into Registax and got what you see below. I was out of focus, but it was best I could get. The mount tracked really well. There was a hot pixel near a star and it only moved NW about 2 'star lengths' in the 4 Min's.
not perfect for imaging but better than i had expected, great for just looking.

Anyway, its keeping me busy while I'm WAiting.

Cheers Guys,

George
Attached Thumbnails
Click for full-size image (mount1.jpg)
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Click for full-size image (mount3.jpg)
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Click for full-size image (135mm_webcam.jpg)
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Click for full-size image (135mm-orion-180sec.jpg)
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Click for full-size image (K3CCD_0003 Frame - 256.jpg)
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