Re: New member - advice on switching from G11 to AP900

Joe Zeglinski

Thanks for clearing up the confusion.

I think that Gilles approach, of manufacturing a special AP900 "base to
Losmandy adapter", is a good approach. That way, I can continue to use the
Losmandy standard pier, or on the Losmandy Meade Adapter (MA) option, attached
to an outdoor pillar, or even on a different portable tripod (with another
MA), at a remote site.

It's nice to simple drop and twist an AP900, without having to remove three
large knobs.
The AP900 SPA will be about 2 1/2 inches wider at the base (about 5.5" G11,
vs. 7.75" AP), than the Losmandy G11 base, but that shouldn't make a problem
in stability - or I could just machine a thicker short aluminum cylinder.
Wonder what dimensions Gilles used for his conversion.


----- Original Message -----
From: <>
To: <>
Sent: Thursday, March 29, 2007 2:19 PM
Subject: Re: [ap-gto] Re:New member - advice on switching from G11 to AP900

In a message dated 3/29/2007 1:05:17 PM Central Daylight Time, writes:

You actually have to "REMOVE", entirely, from the top sides of the pier
(pipe), these 6 screws (O.K. fewer, after you lose a few in the grass or
snow, at night).
Yes, you are correct. The three knobs are for the Mach1 mounting. I was
confused by the multiple posts and thought we were talking about the Mach1
vs. G11

The 900/1200 uses 6 screws which need to be removed. However, it is just as
easy to remove the 4 knobs from the base of the mount and carry it out to a
permanent pier and re-attach without losing any polar alignments, as others
pointed out.


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