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Skipper Billy

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Posts posted by Skipper Billy

  1. 10 hours ago, Mark2022 said:

    That is a fantastic design.  I have been looking for something which just fits what I need and I think that's it. I'd want to house a fork mounted Meade 8inch SCT and a Skywatcher EQ5 with 120mm aperture F6 refractor however so I'd simply have to make mine wider. If you have drawings etc that would be fantastic to see.

    You are very kind!

    I dont have any drawings or plans etc - I made it up as I went along. If  can help in any way just message me - delighted to help.

    It has worked very well for me and has never let a single drop of rain in despite biblical rain and winds over well over 100 kts and temperatures down to -20º

     

  2. 4 minutes ago, 900SL said:

    That's a nice bit of work Billy. The roof sections presumably are not too heavy as a dead lift?

    I'm planning on using a nominal pitched roof to shed rain but I'll design it for snow and wind load, size is 2.4 X 2.4m (8' square). 

     

    My day job is stuff like this so I might try to get a bit architectural

    Each half of the roof is only about 15kgs so it's fairly easy to open and close.

    Good luck with the day job!!  

    • Thanks 1
  3. Mine is a slight nod in the direction of your design.....

    https://www.flickr.com/photos/113316085@N05/albums/72157663274320360

    https://www.davidbanksastro.com/micro-observatory

    When I was planning it I avoided a flat roof as I could imagine issues with weather sealing - ponding water that could end up in the observatory when the two halves are parted to open up. Also snow loading issues - we are in the Scottish Highlands - it may not be an issue where you are 😉  We often get winds of >100mph and whilst I add storm straps when storms are forecast they have never been required to do anything - yet!

    The only downside I have thought of is that in its current format it would be difficult to motorise it if I wanted to.

     

     

     

     

     

  4. I noticed a significant increase in guiding accuracy when I upgraded from a converted finder to a WO guidestar 61 - probably because it was much more rigidly mounted but also the focus mechanism is so much better. Standard Lodestar in both cases

    I also noticed another increase when I added a UV/IR block filter

    And again when I upgraded to a WO Zenithstar 73 III and again when I upgraded to a Lodestar Pro.

    In decent seeing I am now routinely getting guiding around 0.25 p/arc" (milegae on other mounts may vary!!)

    Is it better - yes!!

     

  5. My fanless Intel NUC has been outside for >4 years now without any form of protection - zero issues. The small amount of heat generated keeps the connections etc dry.

    With a fan cooled one it would be drawing damp air into the casing - that doesnt sound like a good idea.

     

     

    20220831_183825.jpg

    • Thanks 1
  6. On 08/09/2022 at 11:25, Elp said:

    If they're in stock already the prices shouldn't have changed, it's when they're changed in this instance which irks, unless they have commercial agreements to pay later.

    As a retailer - I disagree!

    One of the lines we sell is specialist paint - a 750ml can of a particular paint has gone up £1 per week every week for the last 8 weeks - from £18.50 to £26.50 a can. When we sell a can we have to replace it and effectively we would be retailing at less than the cost price to replace it !!! On top of that our payroll has gone up along with all our other costs and energy costs have gone through the roof. Whilst customers are squealing we are having are profit margins slashed to the bone.

    • Like 3
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