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mapstar

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Posts posted by mapstar

  1. Up and about 4am and their was blanket cloud and quite calm.

    Two hours later and we're being battered by strong winds. It's going to be a rough morning by the sounds of things 😕 

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

  2. Home safely after a record quick time to get home. 3 and 3/4 hours was a surprise and a complete contrast to the 7 and half hours last time.

    Cheers all for a good weekend. To quote the mob moto 

    If you don't go, you'll never know! 

    We had 20 mins clear on Friday night and a couple of Orionids graced the skies. It did rain (more like someone throwing buckets of water at the awning) but as always it was a laugh.

     

    • Like 3
  3. On 14/08/2022 at 18:36, Taraobservatory said:

    Hello, 

     

    I tried to search this online and didnt find anyting. Im not using FB so how can I get some info on this? How to look and maybe book? :)

     

    Cheers

    Roger

    Have you read the post at the start of the thread on page 1. Derek details dates and how to book 

    • Like 1
  4. 20 hours ago, Physopto said:

    The better news is that am reinstating the "Pie and Peas Night".

     

    At present we are fully booked for the Thursday and Friday nights at 25 pitches.

    Saturday night is at present at only 19 pitches, so some room for more, if booked soonest!

    (So I can sort out numbers of pies.)

     

    Because of the higher numbers during the week I am thinking of :

    having the "Pie and Peas Night" on the FRIDAY Evening and not the usual Saturday.

    If things change we can change this back to a Saturday Night.

    Please let me know what you all think.

     

    All good with me Deker. Put me down for a pie please, I'm sure others will be along soon to order 4 or so?  (2 for the night and 2 for the way home)

    • Haha 1
  5. On 11/07/2022 at 08:16, skybadger said:

    Slightly out of sequence, I'm doing something similar with a 16" and looking at your mirror supports. The spherical bearing is just dropped and glued over the hole ? Or rebated in using a counter bore ? Albert T uses domed lock nuts drilled through but I dont see that gives enough freedom. 

    Think I wrote in a post on the thread somewhere that It was counter bored the outside diameter of the bearing. Think it was 14mm? The amount of movement is minute so various methods work. 

    • Thanks 1
  6. 8 hours ago, markse68 said:

    Hi Mapstar, what a beautiful build and it must give amazing views! One question though about your beautifully engineered slip ring system- why did you choose copper for the brushes rather than carbon/graphite? Have they worked out to be reliable or do you need to clean them regularly?

    Mark

    Hi Mark

    Thank you for reading.

    The choice of copper was easier to machine than carbon. I had to hand and they have been really reliable.

    Carbon brushes for slip rings and large motors have a high percentage of copper content but these spin at high rpm. The scope probably does 20 rph so is fine. 

    Damian

     

    • Like 1
  7. 21 hours ago, SthBohemia said:

    The making of the mirrors and mounts is more akin (in my case) to those that create model railways. The fun is in the construction not so much the end product.

    With me the mirror making was a love/hate thing, the structure I thoroughly enjoyed, and the fun is using it and meeting different like minded folks in my case 

    • Like 3
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