OKay another update..
As Christmas is only less than a week away I havent spent a great deal of time on the Obs, but I can see it being finished early in 2011...
Concreted all 4 posts in now, so at least that is done, managed to squeeze it in to 3mm off square, I am happy with that. Should see my shed, thats heaps further out, and that was professionally built...
Anyway, hit a small snag on one of the holes, where I misjudged it and it was too far out, so I had to dig a bit out so the concrete had enough to go around the pole. Worked out well...
Also trial fitted the door which fitted perfectly, so now I can dig out the final hole, which will be used to secure the door when closed.
Dew straps for my 80mm scope and 17-40mm f4L Lens are completed along with my Dew Heater controller. So that project is now closed, I can work on the obs more..
http://i363.photobucket.com/albums/o.../stuff-004.jpg
http://i363.photobucket.com/albums/o.../stuff-003.jpg