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Posted: Mon Mar 11th, 2019 19:51 |
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Robert
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I have looked at the link JK, thanks it's a good, a well explained set of articles, which don't assume the reader is accustomed to the jargon of astronomy, it never fails to puzzle me why, in writings aimed at explaining complicated processes to total novices, the writer often uses incomprehensible terminology which is only meaningful to an expert. I have unravelled the mystery of the wiggly lines. The motor output is 1/10th of a revolution per minute, 10 minutes per rev. The repeat time of the wiggly lines is 10 minutes. I am putting the uneven tracking down to the motor to worm shaft gears being too closely meshed and the gears not perfectly concentric. I have adjusted the meshing and tomorrow I am expecting to do a trial run in daylight to test the tracking and to adjust the polar scope, which is well out of adjustment. Somebody has been fiddling because it's so far out, it couldn't have been used properly as it was. I went to the local brickworks and asked to borrow their chimney, the manager was somewhat suspicious but said OK so long as they get it back tomorrow! (At this point the Splash screen kicked in, I simply back swiped on my track pad and OK'd sending the form again nothing lost, brilliant, thanks Chris, that's long overdue.) Said chimney... It's handy having the lightning conductor because it gives me a pin point accurate reference in the image. I am hoping when I have adjusted the polar scope, the rotated image will have all the images centred at that point, in fact this afternoon I used the nearest corner of the chimney as the target.
____________________ Robert. |
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