RE: [APML]Going OT Ho Hum but where to from here.

["Richard Klappal" <klappal@xnet.com>]

Make sure you make allowances for center-of-gravity.  Tipping a std tripod
that far (unless you're quite a ways north) is going to be unstable or
unstoppable.  Then getting stability in the south-pointing counterweight
boom so it doesn't sit there and flex ...

-----Original Message-----
From: astro-photo-bounces@seds.org
[mailto:astro-photo-bounces@seds.org]On Behalf Of Chris Rowland
Sent: Thursday, 10 March, 2005 17:50
To: Discussion of Film Astrophotography
Subject: Re: [APML]Going OT Ho Hum but where to from here.


Thanks Bruce.

I've a NexStar 11 GPS and I can see a wedge in my future, but not at the
prices they are:-)

My plans for fine adjustment are to put a couple of adjusable wedges under a
couple of tripod legs.

Chris
----- Original Message -----
From: "Bruce and Barb" <bruceandbarb@bigpond.com>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Thursday, March 10, 2005 12:05 AM
Subject: Re: [APML]Going OT Ho Hum but where to from here.


OK Chris, I got the idea from Michael Covington. It's a bit of a dog to
align but simple to build, the main thing is making it strong enough.
Michael C made his for an 8" lx200... ours is a 12".  I first built it from
single pieces 17mm 7ply then took it outside to pier and it all looked OK
until I went to get the scope and realised it was hopelessly underbuilt.
:>(   I then sandwiched another layer of 17mm all around it which did the
trick. It is VERY strong now. Of course next time I would sandwich/glue the
ply together before I started cutting pieces. ;>)
I've seen some way better wooden wedges on the net but they're all way
beyond my skills and equipment too.

Here you go:
http://www.users.bigpond.com/bruceandbarb/page17.html
And also Michael Covingtons page:
http://www.covingtoninnovations.com/astro/woodenwedge/


Bruce Thompson
www.thurgoonaastronomy.cjb.net
36°03'31"S 146°59'82"E
  ----- Original Message -----
  From: Chris Rowland
  To: Discussion of Film Astrophotography
  Sent: Thursday, March 10, 2005 8:53 AM
  Subject: Re: [APML] Ho Hum but where to from here.


  I wood be interested in seeing some photos of your wooden wedge.

  Chris
    ----- Original Message -----





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