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Mr. Bill
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Reged: 02/09/05
Posts: 5219
Loc: Northeastern Cal
G11 alti azimuth mod....
      #3032718 - 04/08/09 06:42 PM Attachment (52 downloads)

How to make a G11 into a Giro type alti azimuth mount....

My 10 inch is super stable.

Attachment

--------------------
The night sky is the palette....
My optics are the brushes....

The Milky Way is the masterpiece

Member IDA



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Mr. Bill
Postmaster


Reged: 02/09/05
Posts: 5219
Loc: Northeastern Cal
Re: G11 alti azimuth mod.... new [Re: Mr. Bill]
      #3032721 - 04/08/09 06:44 PM Attachment (38 downloads)

Closeup....notice spacers are 1 1/4 adapters as shaft just happens to be 1 1/4.

Attachment

--------------------
The night sky is the palette....
My optics are the brushes....

The Milky Way is the masterpiece

Member IDA



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Mr. Bill
Postmaster


Reged: 02/09/05
Posts: 5219
Loc: Northeastern Cal
Re: G11 alti azimuth mod.... new [Re: Mr. Bill]
      #3032763 - 04/08/09 07:02 PM Attachment (40 downloads)

A little better for detail....

Attachment

--------------------
The night sky is the palette....
My optics are the brushes....

The Milky Way is the masterpiece

Member IDA



Edited by Mr. Bill (04/08/09 07:23 PM)


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Jim7728
Postmaster


Reged: 04/10/05
Posts: 7284
Loc: Stoop Landing Observatory, NYC
Re: G11 alti azimuth mod.... new [Re: Mr. Bill]
      #3032818 - 04/08/09 07:35 PM

Nice mod there, Bill!

Where's the DEC assembly?

Did not know the mount could turn on it's base.

--------------------
<Jim>15x70-Ultra~TV-85/SM-60~MN-66
Unistar Deluxe~Unimount Light~DM-6


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Mr. Bill
Postmaster


Reged: 02/09/05
Posts: 5219
Loc: Northeastern Cal
Re: G11 alti azimuth mod.... new [Re: Jim7728]
      #3032833 - 04/08/09 07:46 PM Attachment (37 downloads)

Quote:

Nice mod there, Bill!

Where's the DEC assembly?

Did not know the mount could turn on it's base.




Here's the rest....

Attachment

--------------------
The night sky is the palette....
My optics are the brushes....

The Milky Way is the masterpiece

Member IDA



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Jim7728
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Reged: 04/10/05
Posts: 7284
Loc: Stoop Landing Observatory, NYC
Re: G11 alti azimuth mod.... new [Re: Mr. Bill]
      #3032901 - 04/08/09 08:30 PM

Nice!

--------------------
<Jim>15x70-Ultra~TV-85/SM-60~MN-66
Unistar Deluxe~Unimount Light~DM-6


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Mr. Bill
Postmaster


Reged: 02/09/05
Posts: 5219
Loc: Northeastern Cal
Re: G11 alti azimuth mod.... new [Re: Jim7728]
      #3038218 - 04/11/09 02:53 PM Attachment (35 downloads)

Final version with 21 pound counterweight and cut down shaft.....

Attachment

--------------------
The night sky is the palette....
My optics are the brushes....

The Milky Way is the masterpiece

Member IDA



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Jim7728
Postmaster


Reged: 04/10/05
Posts: 7284
Loc: Stoop Landing Observatory, NYC
Re: G11 alti azimuth mod.... new [Re: Mr. Bill]
      #3039458 - 04/12/09 09:48 AM

Very nice!

Two mounts out of one.

--------------------
<Jim>15x70-Ultra~TV-85/SM-60~MN-66
Unistar Deluxe~Unimount Light~DM-6


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Mr. Bill
Postmaster


Reged: 02/09/05
Posts: 5219
Loc: Northeastern Cal
Re: G11 alti azimuth mod.... new [Re: Jim7728]
      #3040820 - 04/13/09 01:25 AM

Quote:

Very nice!

Two mounts out of one.




I took an eq mount that had been sitting around gathering dust and turned it into two very servicable alti azimuth mounts that can each easily handle 35 pound loads.



--------------------
The night sky is the palette....
My optics are the brushes....

The Milky Way is the masterpiece

Member IDA



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Mr. Bill
Postmaster


Reged: 02/09/05
Posts: 5219
Loc: Northeastern Cal
Re: G11 alti azimuth mod.... new [Re: Mr. Bill]
      #3068930 - 04/26/09 06:31 PM Attachment (33 downloads)

Two mounts for the price of one.....

All the pieces of the G11 side by side.

Attachment

--------------------
The night sky is the palette....
My optics are the brushes....

The Milky Way is the masterpiece

Member IDA



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Gord
Carpal Tunnel


Reged: 01/06/04
Posts: 1543
Loc: Toronto, ON, Canada
Re: G11 alti azimuth mod.... new [Re: Mr. Bill]
      #3070329 - 04/27/09 11:46 AM

That's a cool setup. How does the one carrying the 10" rotate in azimuth? Did you have to make some sort of bearing for the top of the pier?

It's a nice option for being able to stand an observe, as opposed to sitting with a dob.

Thanks,

-Gord

--------------------
Gord
  • C14 EdgeHD
  • C10N/Normand Fullum/MoonLite/ProtoStar/Antares
  • C8 EdgeHD
  • Tasco 11TR/Normand Fullum/JMI/ProtoStar
  • IStar 6" F10/Astro-Physics hardware
  • C102 achro, 80ED, Astro-Physics 60/700
  • Losmandy G11 DSC, EQ6/Losmandy, Vixen GP-DX, CG5a, UniStar Lite
  • Burgess 15x70, Nikon 10x50
  • PST, StarBlast, Apex 102, MallinCam's, and some EP's with green lettering
... and still the best wife I could wish for!


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Mr. Bill
Postmaster


Reged: 02/09/05
Posts: 5219
Loc: Northeastern Cal
Re: G11 alti azimuth mod.... new [Re: Gord]
      #3070510 - 04/27/09 01:09 PM Attachment (30 downloads)

The azimuth bearing is stock....simply removed the azimuth lockdown knobs and azimuth adjustment worm.

Bearing surfaces are metal-metal....was going to put a piece of Telfon between but the surfaces are machined smooth enough and the weight is distributed fairly equally between the scope and the counterweight that it turns extremely smooth and the right amount of drag without modification.

Incidently, the motions are well balanced... that is the same effort is required to move both axis.

Attachment

Edited by Mr. Bill (04/27/09 01:20 PM)


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