Friday 25 April 2008

Rebuild Of Roof Structure




Its been a long wait. A measurement error made by me on the internal measurements of the observatory meant that the scope when facing south hit the door of the observatory.
Two options available to me were rebuild the structure or the more favourable raise the scope.

Option two was the preferred choice,

I needed to raise the scope by 14" to allow the counterweight arm to miss the door frame.

I did not have any more of the tubing so I upended a bucket and added some concrete to raise by the appropriate amount. cut some more M12 bar to accept the mounting plate.

The more difficult task was to raise the roof. Again I could completely rebuild a new roof or raise the existing. Due to many factors such as work commitments, WEATHER, I opted for the raise.

I had booked a week off work for this week to do the job.
I had asked 3 members of Breckland AS to lend a hand . Very kindly Barrie Sherrington, Mike Butcher and Gerald North, said yes and to them I am grateful for their help and advice on the the day.

In preparation I had build a framework for the roof to rest upon and eagerly awaited their arrival. Luck prevailed and the weather was fine. So we lifted the roof off and removed the wheels lifted and tested the new framework in place (all OK it fitted perfectly) Reattached the wheels and lifted the roof onto its new home.

The next couple of days were dodging rain and cladding and doing.

As the photo's show the roof is taller than originally wanted but it does mean the scopes do not have to be removed after an imaging session.

California Nebula

  NGC1499 The California Nebula. Discovered in 1889 The California Nebula is an emission nebula in the constellation of Perseus, currently v...