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ccs_hello
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Reged: 07/03/04
Posts: 5224
CG5 to Stainless Steel Tripod leg Adaptation new
      #491394 - 06/26/05 11:59 AM Attachment (183 downloads)

Folks,

No more Aluminum tripod legs

This is a very similar adaptation from Dennis Steele's prior work (LXD55 to tripod).

I am using the Loew's 4" to 2" PVC Reducing Bushing. code 23314 ($3.98).

The center rod is a 10mm x 1.5 threaded rod. I also used a big washer to tie the CG5 head and bushing together. The Bushing is linked to the flat-top-surface tripod using few self-tapping screws.

The donor tripod is a Celestron 93497 (1.5" leg).


ccs_hello


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ccs_hello
Postmaster


Reged: 07/03/04
Posts: 5224
Re: CG5 to Stainless Steel Tripod Adaptation new [Re: ccs_hello]
      #491396 - 06/26/05 12:01 PM Attachment (148 downloads)

Second picture shows the under side of the bushing.
Yellowish thing is the epoxy. Greyish colored washer can be seen here. In between the washer and the top-surface of the tripod hub, there is a 10mm machine screw. Right below the tripod spreader, there is a 10mm wingnut.

If I have to do it again, I will use a square rod as the post.

ccs_hello


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pollux
artiste


Reged: 04/01/04
Posts: 7307
Loc: Burnaby Canada
Re: CG5 to Stainless Steel Tripod Adaptation new [Re: ccs_hello]
      #491853 - 06/26/05 07:50 PM

I have done something similar before. I asked my friend who is a wood worker to cut me a wood board at 1cm thick. 4" outer diameter and 2.5" hole.

I then put a bolt on this ring to use as the horizontal adjustment peg.

Spray it with glossy black paint and viola!

--------------------
My Web Site


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ccs_hello
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Reged: 07/03/04
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Re: CG5 to Stainless Steel Tripod Adaptation new [Re: pollux]
      #491992 - 06/26/05 10:31 PM

After using SVP's 1.75" legs, 1.5" seems to be a bit skinny. (Though still feeling good : )
I think I will soon get the lower legs off then put the rebar and expansion form in them.

ccs_hello


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Sky Captain
Metal Whisperer


Reged: 11/07/04
Posts: 10375
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Re: CG5 to Stainless Steel Tripod Adaptation new [Re: ccs_hello]
      #492059 - 06/26/05 11:35 PM

ccs, thanks for posting the picts. I've been needing to do something similar and will try your idea.



Kerry

--------------------

Kerry



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JerryWise
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Reged: 12/26/03
Posts: 9284
Loc: Lexington, SC
Re: CG5 to Stainless Steel Tripod Adaptation new [Re: Sky Captain]
      #492357 - 06/27/05 07:57 AM

There is also a trailer axle hub available from Northern Tools and other places that fits the base of the mount perfectly (2 and 3/4 inches if I remember correctly). Being metal, it has no give if there is a bigger OTA on the mount. I'll try and get some pics. and post as soon as I can get a moment. These solutions (above) sure look easier to do.

--------------------
Jerry

TOA 150, FS-152, 14" LX200R, AP-1200



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ccs_hello
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Reged: 07/03/04
Posts: 5224
Re: CG5 to Stainless Steel Tripod Adaptation new [Re: JerryWise]
      #494690 - 06/28/05 05:43 PM

Quote:

... fits the base of the mount perfectly (2 and 3/4 inches if I remember correctly)...




I measured the "hub" of the mount's base, the diameter is 60.5 mm.

ccs_hello


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Oldfield
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Reged: 03/20/02
Posts: 6310
Loc: Hong Kong
Re: CG5 to Stainless Steel Tripod Adaptation new [Re: ccs_hello]
      #495119 - 06/28/05 11:43 PM

My local friend made this for me:



--------------------
The Home Astronomer from a city where most people are proud of the light pollution

Toys: Tele Vue Ranger, GOTO Mark-X, Lumenera LU070M, Canon 10x30 IS...

My observation log and ideas My General Blog


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Anonymous
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Re: CG5 to Stainless Steel Tripod Adaptation new [Re: ccs_hello]
      #496488 - 06/29/05 10:25 PM

Quote:

If I have to do it again, I will use a square rod as the post.




Nice work CCS! Do you own a dremel? If so you could grind the sides of the post flat. Or use a hand file, but that would take a lot of work.


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ccs_hello
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Reged: 07/03/04
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Re: CG5 to Stainless Steel Tripod Adaptation [Re: ]
      #496492 - 06/29/05 10:28 PM

Jeremy,

Indeed. But I have few more #93497 to tinker with :-)
Experiment #2 and on will be better :-)

ccs_hello


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Al Canarelli
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Reged: 12/06/07
Posts: 3339
Loc: Central New Jersey
Re: CG5 to Stainless Steel Tripod Adaptation new [Re: ccs_hello]
      #2316863 - 04/10/08 03:22 AM

Great solution! Please tell me about the threaded rod...

*Could you use the same rod that came with the tripod?
*If not, how much longer did the rod have to be?
*Where do you buy M10 threaded rod? MacMasters?


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ccs_hello
Postmaster


Reged: 07/03/04
Posts: 5224
Re: CG5 to Stainless Steel Tripod Adaptation new [Re: Al Canarelli]
      #2316971 - 04/10/08 07:26 AM

Al,

I got M10x1.5 threaded rod from McMaster-Carr.
Depends on where the tripod spreader is located, the length of threaded rod varies. Mine needs to be 12" long.

Clear Skies!

ccs_hello


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ccs_hello
Postmaster


Reged: 07/03/04
Posts: 5224
Re: CG5 to Stainless Steel Tripod Adaptation new [Re: ccs_hello]
      #2608628 - 08/27/08 11:15 PM Attachment (66 downloads)

Just a clarification:
How the tripod base and the mount head are fastened together?

Threaded rod's top-end is fastened to the mount head.

Threaded rod's bottom-end is pulled by the "hex nut" ("Here" mark in the picture).

Note:
Tripod hub should not play "binding the head and hub together" role. If there is a female inner thread on the hub, either it can be grinded out or a specific section of the (male) threaded rod can be grinded out.

Clear Skies!

ccs_hello

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