Good idea Joe, I'll try switching from tape to an o-ring on the
shaft, I also use an o-ring on my SPL eyepieces as a bumper in the
diagonal, that wasn't my idea either but it works great.
--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@...>
You bring up an interesting point about "marking a
position" on the shaft.
I found it very convenient to do so with my new AP-900.
I located a 2" or so, O-Ring, and positioned it on the
exactly at the top of the counterweight. Every time I set up the
the dark field, it is a simple matter to snug the counterweight
against the O-Ring. That is a good pre-balanced starting point when
attaching the OTA. No need to squint for a tape or ink marker -
the weight up against the rubber O-Ring. If I add other equipment
that, it is easy to just slide the weight down a tad - for example,
predetermined one or two fingers (etc) down from the ring. The
counter balancing, as Roland often says, isn't that necessary -
it's not a G11 :-)
----- Original Message -----
From: "bguerin1234" <zapkgbg@...>
Sent: Tuesday, May 06, 2008 1:47 AM
Subject: [ap-gto] Re: Belated thanks to bguerin1234
If you have just one setup, it would probably be worth doing for
peace of mind and mark where everything goes with tape or marker.
Apparently I did put a diagram in the files section on how to hook
up your ampmeter to get the readings. You can search the archives
and read the postings related to this subject.
--- In ap-gto@..., "javier_laina" <javier_laina@>
Could you explain how to balance a servo-controlled mount by
--- In ap-gto@..., "bguerin1234" <zapkgbg@> wrote:
I'm glad it helped!!
--- In ap-gto@..., "tucstargzr" <tucstargzr@>
I'm almost ashamed it took this long to complete this, but...
bguerin1234 posted a hand drawn schematic in the Files
illustrates how to use an amp-meter to balance the mount. I
installed Amperage and voltage meters just under the rope
the Observatory. Since I'm using an 11.5 Amp power supply, I
With both the AP 600 and 1200 humming along, it barely
amp! Slewing, of course bumps it up another ~1/2 amp, but on
meter, that isn't quite the resolution for the fine balance
At the same time, for an all thumbs "electrician", it was
to see how much of a load various 12V items I have draw.
Sings with the Stars
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