Jump to content


Photo

Counterweight help

  • Please log in to reply
6 replies to this topic

#1 evilmedic13

evilmedic13

    Vostok 1

  • -----
  • Posts: 105
  • Joined: 22 Jun 2012
  • Loc: Chicago,Il

Posted 13 November 2012 - 11:45 AM

I purchased a Nexstar 11gps this summer with the celestron counterweight system #94192. Since then, I've upgraded the diagonal. and have been using 2" eps, which have been giving some balance issues. Now, after using a ff/fr and my Nikon D700 for imaging tests, I'm finding the 2.5lb weight a little on the light side. Unfortunately, Celestron has discontinued that cw system. Does anyone here know of any weights compatible with this system, or or should I just suck it up and order a whole new cw system?

#2 evilmedic13

evilmedic13

    Vostok 1

  • -----
  • Posts: 105
  • Joined: 22 Jun 2012
  • Loc: Chicago,Il

Posted 13 November 2012 - 12:03 PM

Ummm, okay, this is embarrassing. Literally 30 seconds after I posted this, I tried another search. I found one on Amazon, it showed what looked like a 22lb cw, but stated it was 2.5 and had the right #'s. After I placed my order, I went to double check, and it said there were no more available. Looks like I grabbed the last one. Lucky me!

#3 MikeBOKC

MikeBOKC

    Aurora

  • *****
  • Posts: 4649
  • Joined: 10 May 2010
  • Loc: Oklahoma City, OK

Posted 13 November 2012 - 01:26 PM

Should that not work out, and assuming that the Celestron counterweight system is similar to the Losmandy one with a screw-on 2.5 pound weight, you might try what I found to be a simple low-cost solution. First, screw a large nut with a wide washer onto the spindle. Next go to a sporting goods store and get the small 2.5 pound weights for barbells (as many as you require -- they cost about three bucks!) Then slide it on and screw the original threaded counterweight on the spindle, tightening it below and the nut/washer above to secure the new weight.

#4 7of 9

7of 9

    Vostok 1

  • *****
  • Posts: 120
  • Joined: 19 Jul 2008
  • Loc: Valley Forge, PA USA

Posted 15 November 2012 - 01:44 AM

You can check here:
http://starizona.com...omplete-Kit-...

Rachel

#5 Lord Beowulf

Lord Beowulf

    Apollo

  • *****
  • Posts: 1360
  • Joined: 13 Oct 2008
  • Loc: Cedar Park, TX

Posted 15 November 2012 - 06:13 AM

Wow, at that price I'd dump the whole thing and go with the ADM solution. That's what I use on both my C11s and it works great. It's about 40% less and has a much more robust Vixen rail system. You could add two additional counterweights (although I never use my second one) and still end up costing less. Just a thought...

Beo

#6 doctomster

doctomster

    Lift Off

  • -----
  • Posts: 13
  • Joined: 04 Feb 2008
  • Loc: North Carolina

Posted 21 November 2012 - 07:45 PM

I actually installed the Starizona counterweight system on my CPC 1100 two years ago. It is pricey but it works as promised. I can load up the viewing end with heavy denkmeier binoviewer and eyepieces. Then adjust the counterweights on the rail to take all the load off the altitude clutch. I think this will extend its life considerably and that would be worth it to me.

#7 Ian Robinson

Ian Robinson

    Skylab

  • *****
  • Posts: 4151
  • Joined: 29 Jan 2009
  • Loc: 33S , 151E

Posted 21 November 2012 - 10:53 PM

If you know someone who has a metal lathe, why not get a bit of lead round bar about the right diam and have them make you suitable (very compact !!! cf the steel ones sold by the OEMs) mass counterweight.

Add a bit enamel paint to the outside and it'll look great and be a very cost effective solution.






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics