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G11 alti azimuth mod....

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#1 Mr. Bill

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Posted 08 April 2009 - 05:42 PM

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

My 10 inch is super stable.

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#2 Mr. Bill

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Posted 08 April 2009 - 05:44 PM

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

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#3 Mr. Bill

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Posted 08 April 2009 - 06:02 PM

A little better for detail....

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#4 Jim7728

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Posted 08 April 2009 - 06:35 PM

Nice mod there, Bill!

Where's the DEC assembly? :grin:

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

#5 Mr. Bill

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Posted 08 April 2009 - 06:46 PM

Nice mod there, Bill!

Where's the DEC assembly? :grin:

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


Here's the rest....

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#6 Jim7728

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Posted 08 April 2009 - 07:30 PM

Nice! :bow:

#7 Mr. Bill

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Posted 11 April 2009 - 01:53 PM

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

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#8 Jim7728

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Posted 12 April 2009 - 08:48 AM

Very nice!:cool:

Two mounts out of one. ;)

#9 Mr. Bill

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Posted 13 April 2009 - 12:25 AM

Very nice!:cool:

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.

:cool:

#10 Mr. Bill

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Posted 26 April 2009 - 05:31 PM

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

All the pieces of the G11 side by side.

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#11 Gord

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Posted 27 April 2009 - 10:46 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

#12 Mr. Bill

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Posted 27 April 2009 - 12:09 PM

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.

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