· Get a Cloudy Nights T-Shirt · Submit a Review / Article    Click here if you are having trouble logging into the forums Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Equipment Discussions >> ATM, Optics and DIY Forum Previous   Index   Next   Flat   Jim Romanski Pooh-Bah Reged: 01/02/05 Posts: 1022 Loc: Guilford, Connecticut Re: Truss pole termination idea       10/23/09 10:42 AM Attachment (29 downloads) Edit   Reply   Quote   Quick Reply:   Here is the setup that I’m using with the 17.5” Scope. One of the design principles that I was taught with truss tubes was to have the connection butt together in the horizontal plane so that there’s less movement in the vertical. In other words, I didn't want to stick a bolt in from the side when connecting it to the scope to prevent wear and slop. The bottom uses Moonlite ball connectors. The top has Tie Rod Ends or Heim joints from McMaster Carr permanently bolted into an aluminum angle plate. The 1/4-20 thumb screw is captive and screws into the top ring. By having the connections butt in the horizontal plane the vertical length is maintained overall collimation is better retained. Also, this makes for 4 pairs of struts that are easy to assemble in the dark. I used studs with 1/4-20 thread on one end and 1/4 -28 on the other for the Heim joints since the ones sold by McMaster Carr are only available as 1/4-28 and the tube inserts are 1/4-20. I prefer to use the tube inserts as this also retains the same connection scheme of butting in the horizontal. The struts are also adjustable. -------------------- Jim 17.5" Dob "Project" 13.1" Coulter 8” Cave NP 101 on a CG-5 25x100 binos Naglers, Ethos, etc. Post Extras       Entire thread Subject Posted by Posted on Truss pole termination idea HandyAndy 10/20/09 05:29 PM Re: Truss pole termination idea MitchAlsup   10/23/09 12:47 PM Re: Truss pole termination idea Glig   10/23/09 03:35 PM Re: Truss pole termination idea Roy McCoy   10/24/09 12:41 AM Re: Truss pole termination idea Roy McCoy   10/24/09 12:48 AM Re: Truss pole termination idea Roy McCoy   10/24/09 12:40 AM Re: Truss pole termination idea MitchAlsup   10/23/09 04:18 PM Re: Truss pole termination idea grendel   10/23/09 04:33 PM Re: Truss pole termination idea grendel   10/23/09 04:36 PM Re: Truss pole termination idea Roy McCoy   10/24/09 12:36 AM Re: Truss pole termination idea Roy McCoy   10/24/09 12:37 AM Re: Truss pole termination idea lightfever   10/24/09 02:26 PM Re: Truss pole termination idea Roy McCoy   10/24/09 03:52 PM Re: Truss pole termination idea Glig   10/24/09 03:21 PM Re: Truss pole termination idea Roy McCoy   10/24/09 04:13 PM Re: Truss pole termination idea Scott Watson   10/24/09 06:40 PM Re: Truss pole termination idea Roy McCoy   10/24/09 07:01 PM Re: Truss pole termination idea HandyAndy   10/27/09 07:29 AM Re: Truss pole termination idea Roy McCoy   10/27/09 10:03 AM Re: Truss pole termination idea HandyAndy   10/27/09 12:46 PM Re: Truss pole termination idea HandyAndy   10/27/09 07:31 AM Re: Truss pole termination idea HandyAndy   10/27/09 07:32 AM Re: Truss pole termination idea Glig   10/27/09 09:13 AM Re: Truss pole termination idea Scott Watson   10/24/09 08:40 PM Re: Truss pole termination idea Roy McCoy   10/24/09 09:37 PM Re: Truss pole termination idea Jim Romanski   10/24/09 11:02 PM Re: Truss pole termination idea Glig   10/24/09 07:52 PM Re: Truss pole termination idea Glig   10/24/09 08:32 PM Re: Truss pole termination idea Glig   10/24/09 08:07 PM Re: Truss pole termination idea Glig   10/24/09 08:12 PM Re: Truss pole termination idea MitchAlsup   10/25/09 01:58 PM Re: Truss pole termination idea Glig   10/24/09 08:22 PM Re: Truss pole termination idea Dick Jacobson   10/25/09 06:38 PM Re: Truss pole termination idea Glig   10/26/09 12:34 AM Re: Truss pole termination idea Dick Jacobson   10/26/09 09:22 PM Re: Truss pole termination idea Dick Jacobson   10/26/09 09:16 PM Re: Truss pole termination idea Dick Jacobson   10/26/09 08:39 AM Re: Truss pole termination idea Glig   10/24/09 03:25 PM Re: Truss pole termination idea Roy McCoy   10/24/09 03:47 PM Re: Truss pole termination idea HandyAndy   10/24/09 11:29 AM Re: Truss pole termination idea Roy McCoy   10/24/09 12:43 PM Re: Truss pole termination idea HandyAndy   10/24/09 11:24 AM Re: Truss pole termination idea grendel   10/23/09 03:50 PM Re: Truss pole termination idea Glig   10/23/09 04:01 PM Re: Truss pole termination idea Roy McCoy   10/23/09 03:53 PM Re: Truss pole termination idea Kalle   10/23/09 02:45 PM Re: Truss pole termination idea HandyAndy   10/23/09 03:18 PM Re: Truss pole termination idea polaraligned   10/20/09 05:42 PM Re: Truss pole termination idea Don W   10/20/09 06:27 PM Re: Truss pole termination idea Owen   10/21/09 09:12 AM Re: Truss pole termination idea Howie Glatter   10/21/09 09:31 AM Re: Truss pole termination idea Owen   10/21/09 09:58 AM Re: Truss pole termination idea HandyAndy   10/21/09 03:23 PM Re: Truss pole termination idea jasonharris   10/21/09 05:37 PM Re: Truss pole termination idea Roy McCoy   10/22/09 02:15 AM Re: Truss pole termination idea Owen   10/22/09 05:09 AM Re: Truss pole termination idea Scott Watson   10/22/09 10:22 PM Re: Truss pole termination idea Jim Romanski   10/23/09 10:46 AM Re: Truss pole termination idea Owen   10/23/09 12:12 PM Re: Truss pole termination idea Owen   10/23/09 03:20 AM Re: Truss pole termination idea Vincent Becker   10/23/09 05:07 AM Re: Truss pole termination idea Owen   10/23/09 05:16 AM Re: Truss pole termination idea Jim Romanski   10/23/09 10:42 AM Re: Truss pole termination idea Jim Romanski   10/23/09 10:43 AM Re: Truss pole termination idea Jim Romanski   10/23/09 10:43 AM Extra information 15 registered and 9 anonymous users are browsing this forum. 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