Re: Larger "diameter" Counterweights for AP-1600 ?

Howard Hedlund

Hi Joe,

I'm assuming you got the latitudes backward in the second paragraph ... Anyway, it is a moot point with the 1600 since the azimuth adjuster is in the back of the mount.

Mag. 7 Skies!

Howard Hedlund
Astro-Physics, Inc.
Phone: 815-282-1513<>
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From: ap-gto@... [mailto:ap-gto@...] On Behalf Of Joe Zeglinski
Sent: Thursday, May 03, 2012 4:28 PM
To: ap-gto@...
Subject: [ap-gto] Re: Larger "diameter" Counterweights for AP-1600 ?

Hi Chuck,

If at all possible ... it is best to AVOID using extension bars. I have
been advised by an expert, that he keeps his stack of cwts as close to the
upper bar as possible, and even retained his old, shorter, AP-1200 cwt bar.
He says that with the large mass of cwts down the bar, their "inertia" can
affect the "responsiveness", of fine guiding corrections.

Of course, this won't pose a problem for those at low latitudes, but
those in higher latitudes may have no choice but to use extensions, since
the cwt diameter can clip the mount post-meridian, especially the mount AZ
Adjuster knob, which sticks out a bit further, beyond the pier perimeter.

Some things to consider, before going for lighter weights further own the
bar, for the same leverage.
Joe Z.

-----Original Message-----
From: divenuts
Sent: Thursday, May 03, 2012 4:46 PM
To: ap-gto@...<>
Subject: Re: [ap-gto] Re: Larger "diameter" Counterweights for AP-1600 ?

Don't forget you can get an extention cwt bar, which cost much less than the
weights. If the 1600 couldn't use the 1200 weights..that would be a deal
breaker for me.

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