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Losmandy G11 problem

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Lagonda

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Jul 15, 2009, 4:57:20 AM7/15/09
to
I bought Losmandy G11 with Gemini system. On the first startup, when we
tried to allign the mount on Polaris and some other stars, occasionally
happened that on HC was written "motor stalled". We tried to repeat tha
acton two, three times, but nothing happens.
Second, HC or memory inside, can not remember the time. If I put manually
time, coordinates, mount type etc, on the second startup G11 will remember
coordinates, mount type but not the time.

I called service dept. in Losmandy, and the guy said to me that the problem
with time is a little battery inside, that I should replace it or take it
out and leave it for a few hours and then to put it back.
"motor stalled" problem, he said that this can happen when there is low
voltage. On the mount is written 12-18 V. A tried it with electricity from
my car lightener (for cigarettes) and the car was runnig. So I doubt that
there were no or low electricity.

I live in Europe. I bought the mount from Optcorp over the internet.
Does anyone have some idea, sollution or something to help me a little bit
with this problem. It's not easy for me to send that back to US if it's not
necessary.

Losmandy may be a good mount, but to put plastic gear inside (when you
attach the those two motors on it) and it all looks very "cheap made"...
:(
HC have only one line for letters and numbers.


:(

Thanks for any suggestions.

Alan

--
"Gravitation cannot be held responsible for people falling in love. How
on earth can you explain in terms of chemistry and physics so important
a biological phenomenon as first love? Put your hand on a stove for a
minute and it seems like an hour. Sit with that special girl for an
hour and it seems like a minute. That's relativity."


William Mattil

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Jul 15, 2009, 8:41:56 AM7/15/09
to


Alan,

In my opinion the Gemini Control System is problematic at best and many
people have been faced with similar problems. This is not to say that it
can't be beaten into submission. Once you have a reliable working system
it is likely to work well. Here are some thoughts.

Motor Stalled:

This is the most vexing problem. There can be a few sources for this. As
suggested if the input voltage/current is too low then it can set this
condition up. As can having the worm gear mesh too tight, or an
imbalance in the payload. Personally I would *not* run the Gemini from
Batteries. I used a 13.8 VDC Regulated Supply and boosted the output
voltage to 15VDC. Then I had to pay very close attention to the worm
gear mesh. And this needed to be readjusted approx twice a year. Between
winter and summer due to large temperature fluctuations.


And replace the battery as suggested.


Regards

Bill

--
William R. Mattil

http://www.celestial-images.com

Bill

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Jul 15, 2009, 8:44:24 AM7/15/09
to

I can't help with the Gemini, as I have a Skywalker system on my G-11;
but for any motor stallingissue, the first things I'd check that the
mount is balanced and that the worm isn't too tight/binding anywhere.

I would strongly suggest checking out the "Losmandy_users" group on
Yahoo Lots of user to user support, and it's really a great group of
people - with a lot of knowledge on troubleshooting your Gemini & mount.
You might encounter some trouble signing up for the group for the next
day or so - Yahoo is doing some maintenance :-(

The group's url is:

http://tech.groups.yahoo.com/group/Losmandy_users/

Hope it helps,
Bill
--
Email address is a Spam trap.

Craig

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Jul 15, 2009, 10:56:06 AM7/15/09
to

I have a G-11/Gemini system. For teh time issue you will have to
replace the internal battery. takes a few minutes. No big deal.

For the Motor Stalled error - I've had these and it has always been
caused by one of three things.

1: Low power/Voltage. You say you were running off your car so that is
likely not the culprit.
2: Off Balance/ worm gear binding. 1st is the Dec or RA motor
stalling? How much weight do you have on the mount (Equip and Counter
weight). Did you balance the dec 1st or RA? I always balance the DEC
1st then RA.
3: bad cable. try swapping the cables and see if it changes what motor
stalls.

Try running the motor using just the hand controller and see if will
move or stall. this will give you a good idea of what motor is
problematic. proceed from there.

Good luck and let us know how it goes.

Curtis Croulet

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Jul 15, 2009, 12:13:32 PM7/15/09
to
The people I know who have owned the G-11/Gemini have had little trouble
with it. They are happy. My own G-11 is non-Gemini push-around. As
suggested by others, you should join the Yahoo! Losmandy group. Also, you
might contact OPT, since they were your original vendor. I know they have
people on-staff who can talk knowledgeably about G-11/Gemini.
--
Curtis Croulet
Temecula, California

Davoud

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Jul 15, 2009, 1:16:44 PM7/15/09
to
Lagonda wrote:

> I bought Losmandy G11 with Gemini system. On the first startup, when we
> tried to allign the mount on Polaris and some other stars, occasionally
> happened that on HC was written "motor stalled". We tried to repeat tha
> acton two, three times, but nothing happens.
> Second, HC or memory inside, can not remember the time. If I put manually
> time, coordinates, mount type etc, on the second startup G11 will remember
> coordinates, mount type but not the time.
>
> I called service dept. in Losmandy, and the guy said to me that the problem
> with time is a little battery inside, that I should replace it or take it
> out and leave it for a few hours and then to put it back.
> "motor stalled" problem, he said that this can happen when there is low
> voltage. On the mount is written 12-18 V. A tried it with electricity from
> my car lightener (for cigarettes) and the car was runnig. So I doubt that
> there were no or low electricity.
>
> I live in Europe. I bought the mount from Optcorp over the internet.
> Does anyone have some idea, sollution or something to help me a little bit
> with this problem. It's not easy for me to send that back to US if it's not
> necessary.
>
> Losmandy may be a good mount, but to put plastic gear inside (when you
> attach the those two motors on it) and it all looks very "cheap made"...
> :(
> HC have only one line for letters and numbers.

The G-11/Gemini is a great mount, underrated largely by persons who
never owned one. I had great experience with my G11/Gemini. Replaced it
with an A-P 1200GTO for load-bearing capacity and no other reason. The
A-P 1200 has its share of imperfections, as well.

1. Get a new memory battery.

2. Forget your automobile battery. The Gemini should be run from an 18V
supply if it is in a fixed installation. If you're in the field and
limited to 12V make sure that you have a powerful battery (marine
deep-cycle or equivalent). Use a heavy-duty cable in either case.

3. Check your load balance.

4. "Plastic" sounds like a bad word, but those gears are up to the
task. Mine performed very nicely with a five to 10 kg overload. It was
only when I contemplated putting a total of 50 kg on it (it's rated for
less than 30) that I decided it was time to go for something heavier.

Davoud

--
usenet *at* davidillig dawt cawm

Curtis Croulet

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Jul 15, 2009, 1:47:08 PM7/15/09
to
> The A-P 1200 has its share of imperfections, as well.

What are they? I don't own one. I'm genuinely interested in your answer.

Craig

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Jul 15, 2009, 3:59:16 PM7/15/09
to

I think the plastic he refers to is the coupling between the worm and
the motor. It that little plastic cap which both slide into.

f7j9jwir...@cox.net

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Jul 15, 2009, 4:36:49 PM7/15/09
to
On Jul 15, 1:57 am, "Lagonda" <lagon...@gmail.com> wrote:
> I bought Losmandy G11 with Gemini system. On the first startup, when we
> tried to allign the mount on Polaris and some other stars, occasionally
> happened that on HC was written "motor stalled". We tried to repeat tha
> acton two, three times, but nothing happens.

I'd say this is most likely a voltage issue. Even though you were
connected to the 12 V system in your car (actually about 13.8 V), it's
quite possible that your connection wasn't optimal through the cigar
lighter plug. Contrary to some other claims in this thread, the
Gemini system will operate quite well from a 12 V source, but an ohm
of resistance will kill you, particularly when slewing. I use a
standard 12 V automotive battery with my mount and can run for many
nights between recharges. The only times I've had problems, they
could be traced to the connections at the battery. I've addressed
these by installing a female high-current polarized (Jones) connector
in my battery box, connected to the battery with brass marine battery
clamps and a 10 A fuse. I then fabricated my own power cable using a
mating Jones connector, 14 AWG wire and a DIN connector. This cable
is much shorter than the factory cable since my battery resides under
the tripod, so there's far lower chance of getting tangled in the
dark.

Except for rough alignment of the polar axis, you will have best
success with "aligning" the Gemini if you choose stars farther from
the pole. I like to start with five or more on one side of the
meridian, three or more on the other, then go back to a couple of the
first objects (or some others on the first side of the meridian) when
building a pointing model. I'll also synchronize against objects I'm
viewing as the night progresses to improve the model over time. But
first, you've got to be able to slew without losing synchronization
between the motors and the controller.

I did encounter one anomaly earlier this year which took me a while
to resolve and isn't specifically documented. On a night in May, I
set out to align my mount (which in reality is calibration of the
pointing model to the orientation of the mount relative to the sky), a
series of operations I've performed dozens of times before. I chose
to use stars to the west of the meridian since there were many bright
candidates in that part of the sky at the time. My first target star
was Capella, and the second Rigel. When I attempted to slew to a
third star, the mount was completely lost. I checked the connections,
repositioned the axes manually and started over from Cold Start, with
the same result. It was only after several iterations of checks and
attempts that I realized the mount was barely moving in RA from the
first star to the second. Sure enough, those two stars are within a
couple of arc-minutes of the same meridian, and the Gemini was
apparently getting a very wrong result from what I speculate is an
integer divide operation. I hadn't realized when I chose those two
stars that they weren't well separated in both axes, as their
positions on the sky at the time didn't make that obvious. Starting
calibration with two different stars solved the problem entirely.

Moral of that story: Beware Capella and Rigel. I haven't identified
any other pair of bright stars in the "Goto Bright Star" list which
are likely to cause the same problem.

> Second, HC or memory inside, can not remember the time. If I put manually
> time, coordinates, mount type etc, on the second startup G11 will remember
> coordinates, mount type but not the time.

As others have suggested, replace the internal battery. You likely
got a unit which has been on the shelf for a while and the factory
battery has been run out. My Gemini is 3+ years old, and still
running on the original battery, but I've got a spare in my field box
for the day when it expires.

A word about the Yahoo! groups (there are separate groups for Gemini
and Losmandy mounts, a testament to the fracturing of on-line
communication to the point of nearly total uselessness): if you
subscribe, you may be a bit overwhelmed by the amount of attention
given to after-market worm upgrades and the necessity of completely re-
working your polar axis. My advice would be to take that with a grain
of salt. If you're primary goal is visual observing, you'll probably
have little need to do anything to the mount if you follow Losmandy's
balance recommendations. Even if you're imaging, you will most likely
be able to get pretty good results at shorter focal lengths. If
you're goal is long exposure imaging at long focal lengths, that's a
different story. Based upon my experience though, make sure you have
a problem before doing anything, and take the time to adjust the worm
drive which came with the mount before reaching the conclusion that
you have to drop hundreds more to make it work for you.

-- MC --

William Mattil

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Jul 15, 2009, 5:15:07 PM7/15/09
to
Curtis Croulet wrote:
>> The A-P 1200 has its share of imperfections, as well.
>
> What are they? I don't own one. I'm genuinely interested in your answer.


Curtis,

You should take any response that he gives you with a *huge* grain of
salt. 99% of the complaints about AP Mounts are from those people who
don't actually use them, or are trying to make them into a G-11 for some
unknown reason.

I have two of them. AP900GTO and an AP1200GTO and they have been
completely flawless in operation. Any troubles that I have had were self
inflicted. Replacing the G-11 with an AP mount was the single best thing
I ever did. Period.

Davoud

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Jul 15, 2009, 6:17:05 PM7/15/09
to
Davoud:

> > The A-P 1200 has its share of imperfections, as well.

Curtis Croulet wrote:
> What are they? I don't own one. I'm genuinely interested in your answer.

If you are interested because you are considering buying an A-P
1200GTO, I highly recommend the mount. I think the majority of A-P
mount owners would do the same.

If you are asking in order to challenge me to name some imperfections,
I'm not going to do it. Your best bet is
<http://tech.groups.yahoo.com/group/ap-gto>, and talking in person to
owners.

Davoud

--
usenet *at* davidillig dawt com

Curtis Croulet

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Jul 15, 2009, 7:15:51 PM7/15/09
to
> If you are asking in order to challenge me to name some imperfections,
> I'm not going to do it. Your best bet is
> <http://tech.groups.yahoo.com/group/ap-gto>, and talking in person to
> owners.
>
> Davoud

It wasn't a "challenge." It was an honest, good-faith question, which I
thought I made clear. I would have appreciated a sincere answer.

Davoud

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Jul 15, 2009, 10:42:33 PM7/15/09
to
Davoud:

> > If you are asking in order to challenge me to name some imperfections,
> > I'm not going to do it. Your best bet is
> > <http://tech.groups.yahoo.com/group/ap-gto>, and talking in person to
> > owners.

Curtis Croulet:


> It wasn't a "challenge." It was an honest, good-faith question, which I
> thought I made clear. I would have appreciated a sincere answer.

I see that the part of my reply that you quoted was poorly worded; I
did not mean to imply that your question was merely a taunt. I suppose
one sees so many taunts on Usenet that one may wrongly let oneself be
influenced by them. Please accept my apology.

The second part of the reply is sincere, and, I think, good advice.
Join the group and also talk in person to some owners.

A-P vs. the world is as almost as much a powder keg as Mac vs. Windows.
Some would say its worse; the Mac may be a religion-like cult, but so
is A-P. Furthermore, in the Mac world, one doesn't have to wait for
years for the Messiah to arrive; you can go down the block and pick one
up at any time. Not so a new A-P mount or 'scope, so its arrival after
years of waiting seems to be a bit like having yearned for the Second
Coming of the Messiah (or the first, if one is Jewish) for a lifetime
and being fortunate enough to have it happen during one's lifetime. I
have been attacked in a public forum, talked down to in a humiliating
fashion, and all but called too dumb to own an A-P mount for pressing a
key on the keypad that the manual told me to press. That's why I'm more
than a bit shy about discussing any shortcomings or problems in any
public forum. Following my public dressing down I received quite a few
e-mails from people who had similar issues, including one well-known
expert whom I cannot name. None of them said that the A-P 1200GTO is a
bad mount, but each had had his problems, and each of them believed
that his problem was not of his own making.

Furthermore, the shortcomings in my A-P 1200GTO are not huge; I use the
mount practically every clear night with good pointing and guiding, and
in spotlighting minor issues I might exaggerate their importance.

That leads me to another parallel between the cults of A-P and the Mac
OS; however much mystique may be attached to A-P mounts and 'scopes,
and to the Mac OS, there has to be something to it because the
faithful, A-P or Mac, aren't really insane, as sometimes claimed, and
they would soon seek a new religion if they weren't getting the results
they expected from their present religion.

Whether A-P gear is worth the wait is a different question, one that I
can answer only for myself. I have advised my brother-in-law that if
his five-year-old son shows the slightest interest in astronomy, he
should order an A-P mount and 'scope for him _immediately_ .

Me? I have a Takahashi TOA-150 refractor arriving soon. :>)

Davoud

--
usenet *at* davidillig dawt cawm

Davoud

unread,
Jul 15, 2009, 11:28:14 PM7/15/09
to
Davoud:

> >> The A-P 1200 has its share of imperfections, as well.

Curtis Croulet:


> > What are they? I don't own one. I'm genuinely interested in your answer.

William Mattil:


> You should take any response that he gives you with a *huge* grain of
> salt. 99% of the complaints about AP Mounts are from those people who
> don't actually use them, or are trying to make them into a G-11 for some
> unknown reason.

This illustrates what I said about the parallel between A-P vs. world
and Mac vs. Windows. You perceive that I have slighted the mount(s)
that you love, and you are highly incensed and insulting. I should be
ignored because I don't own a 1200GTO (except that I do) and because
any problems I have had are of my own making.

Sez you. I have heard from too many people who "made" the same problems
to believe that. They also came under attack in this way, and, like me,
they will no longer seek help on the A-P in a public forum. I can't
figure out why there should even be a public discussion forum for a
"flawless" instrument, except perhaps to give people the opportunity to
tell others how wise they are for having purchased one--and to tell the
odd person who has a problem how wrong and how dumb s/he is.

So, I think that Mr. Croulet should take your response with a half
grain of salt because Mr. Croulet has already shown that he is quite
capable of deciding for himself what to think about my response.

Curtis Croulet

unread,
Jul 16, 2009, 1:30:24 AM7/16/09
to
> A-P vs. the world is as almost as much a powder keg as Mac vs.
> Windows...etc., etc.

This has nothing to do with Macs vs Windows or A-P vs The World. You claim
to own an A-P mount, yet when asked to explain *your own voluntary remark*
that it "has its share of imperfections," a fog suddenly descends. Bizarre!
A friend of mine owns a Mach 1 mount, and he's very happy with it, and he
reports tracking abilities that I cannot achieve with my G-11 (at over 3x
the price, I might add). But I have to say that if there's something so
embarrassingly wrong with the AP-1200 (and the 900 too?) that their owners
are reluctant to discuss it in public for fear of being accused of heresy,
then I'd be very hesitant to consider buying one should a lotto ticket
finally strike gold. While trying to protect the reputation of your
favorite mount, you have instead sown the seeds of doubt. In a sense, I
have an answer to my question.

Lagonda

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Jul 16, 2009, 5:36:17 AM7/16/09
to

"Lagonda" <lago...@gmail.com> wrote in message
news:h3k5i3$c94$1...@ss408.t-com.hr...

>I bought Losmandy G11 with Gemini system.

cut

:)
Thanks for all your answers. I tried the mount without any payload. Just eq
head.
I will replace the battery inside.
I will try to put higher voltage. Somebody said that the car voltage could
be ok, but the weak link could be cigarette-voltage-output.
I will try also to tight the mount not so strong.

In a few days, I will let you know what happened.

Thanks once again.

Alan


William Mattil

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Jul 16, 2009, 7:28:45 AM7/16/09
to
Davoud wrote:
> Davoud:
>>>> The A-P 1200 has its share of imperfections, as well.
>
> Curtis Croulet:
>>> What are they? I don't own one. I'm genuinely interested in your answer.
>
> William Mattil:
>> You should take any response that he gives you with a *huge* grain of
>> salt. 99% of the complaints about AP Mounts are from those people who
>> don't actually use them, or are trying to make them into a G-11 for some
>> unknown reason.
>
> This illustrates what I said about the parallel between A-P vs. world
> and Mac vs. Windows. You perceive that I have slighted the mount(s)
> that you love, and you are highly incensed and insulting. I should be
> ignored because I don't own a 1200GTO (except that I do) and because
> any problems I have had are of my own making.

You are very well known on this group *and* other public forums for
having a ridiculously thin skin and now you even venture down the path
of telling me how I feel ? Remember sonny I am well aware of the
differences between RCAL and SYNC and furthermore I didn't try to
endlessly justify my mistake. Unlike yourself.


>
> Sez you. I have heard from too many people who "made" the same problems
> to believe that. They also came under attack in this way, and, like me,
> they will no longer seek help on the A-P in a public forum. I can't
> figure out why there should even be a public discussion forum for a
> "flawless" instrument, except perhaps to give people the opportunity to
> tell others how wise they are for having purchased one--and to tell the
> odd person who has a problem how wrong and how dumb s/he is.


This sums it up. You behaved like a buffoon and more than one person
handed you your hat and so you run away and hide instead of addressing
the *real* cause of the problem. Which is your inability to accept blame
for a mistake that you made. It's really pretty simple. And your
posturing here doesn't add any more credibility to your argument.

>
> So, I think that Mr. Croulet should take your response with a half
> grain of salt because Mr. Croulet has already shown that he is quite
> capable of deciding for himself what to think about my response.
>


You are welcome to think whatever you like. Furthermore Curtis can think
whatever he likes about AP Mounts.I suspect that unlike yourself he
doesn't have an "axe to grind" based upon some perceived injustice that
you suffered at the hands of the cretins over on the AP-GTO List.

And for any innocent reader of this I would like to add that I had
nothing at all to do with the exchange that took place on the
aforementioned list. But I was entertained by it. David, if nothing else
is predictable.


Your Hat Sir .......


Thanks

Davoud

unread,
Jul 16, 2009, 10:21:47 AM7/16/09
to
William Mattil wrote:

> You are welcome to think whatever you like. Furthermore Curtis can think
> whatever he likes about AP Mounts.I suspect that unlike yourself he
> doesn't have an "axe to grind" based upon some perceived injustice that
> you suffered at the hands of the cretins over on the AP-GTO List.

I have no idea what you are babbling about. I wrote "If you are


interested because you are considering buying an A-P 1200GTO, I highly
recommend the mount. I think the majority of A-P mount owners would do
the same."

I also wrote "I use the mount practically every clear night with good


pointing and guiding, and in spotlighting minor issues I might
exaggerate their importance."

"I highly recommend the mount" and "good pointing and guiding" <> axe
to grind, in my book.

Davoud

unread,
Jul 16, 2009, 10:56:18 AM7/16/09
to
Curtis Croulet wrote:

> You claim to own an A-P mount,

<http://www.primordial-light.com/technique.html> I claim that I am the
person depicted in that photograph. I further assert that I am the
lawful owner of the equipment depicted in that photograph.

> yet when asked to explain *your own voluntary remark*
> that it "has its share of imperfections," a fog suddenly descends. Bizarre!
> A friend of mine owns a Mach 1 mount, and he's very happy with it, and he
> reports tracking abilities that I cannot achieve with my G-11 (at over 3x
> the price, I might add). But I have to say that if there's something so
> embarrassingly wrong with the AP-1200 (and the 900 too?) that their owners
> are reluctant to discuss it in public for fear of being accused of heresy,
> then I'd be very hesitant to consider buying one should a lotto ticket
> finally strike gold. While trying to protect the reputation of your
> favorite mount, you have instead sown the seeds of doubt. In a sense, I
> have an answer to my question.

To avoid coming up with the wrong answer to your question, I would urge
you to pay attention to the parts of my posts that I emphasized.

Nonetheless, the bottom line is that I stand behind what I said and I
have no need to justify or further explain. You will answer your
questions in a manner that suits you, and you don't have to explain
yourself, either.

William Mattil

unread,
Jul 16, 2009, 11:25:42 AM7/16/09
to
Davoud wrote:

>
> I have no idea what you are babbling about.
>

I never babble. Your ability to focus on this discussion is certainly
questionable. And your quoting skill are nil.

you wrote:

"
The G-11/Gemini is a great mount, underrated largely by persons who
never owned one. I had great experience with my G11/Gemini. Replaced it

with an A-P 1200GTO for load-bearing capacity and no other reason. The


A-P 1200 has its share of imperfections, as well.
"

As Curtis pointed out, had you actually bothered to read his response,
was that you not only didn't answer his rather easily understood
question but instead clouded the issue up even more. I suspect you think
you were being cute. But no matter.

When asked to provide even one "imperfection" of an AP-1200GTO you
declined to do so.

It was a typical BS response that you deserve to be called on. And
before you even try...... I, along with many others, do not consider a
Gemini Equipped G-11 to be imperfect either. Because that statement
means nothing. Perfection is only in the eye of the beholder.


> I wrote "If you are
> interested because you are considering buying an A-P 1200GTO, I highly
> recommend the mount. I think the majority of A-P mount owners would do
> the same."


And you also included some diatribe about how your poor little feelings
were trounced upon in a public forum by some insensitive AP owners and
that *many* others agree with you. Somehow it's important to you that
you have some kind of a "fan" base or something <lol>. You have a
history of not being able to take criticism and this is a good example
of that. You chose to criticize the AP1200 for something that you failed
to understand. When several people then tried to educate you, you
resisted their efforts and could only carp on about how you did
*everything* by the book. You ask for help, it's provided and then you
choose to be critical about the manner in which is was provided. You
have done this several times to a number of different people.


>
> I also wrote "I use the mount practically every clear night with good
> pointing and guiding, and in spotlighting minor issues I might
> exaggerate their importance."
>
> "I highly recommend the mount" and "good pointing and guiding" <> axe
> to grind, in my book.
>

The axe that you chose to grind is clearly evident by anyone reading
your post. I'll quote it below...

"
Sez you. I have heard from too many people who "made" the same problems
to believe that. They also came under attack in this way, and, like me,
they will no longer seek help on the A-P in a public forum. I can't
figure out why there should even be a public discussion forum for a
"flawless" instrument, except perhaps to give people the opportunity to
tell others how wise they are for having purchased one--and to tell the
odd person who has a problem how wrong and how dumb s/he is.
"

You clearly have issues in dealing with people who try to help and
apparently go out of your way to try and deride them for trying to help.
Simply because you didn't like the answer doesn't make it incorrect.

Might I suggest you limit yourself to those discussions pertaining to
Macs, Windows and how bad the Bush Administration was ? You'll be happier.

Davoud

unread,
Jul 16, 2009, 12:09:18 PM7/16/09
to
William Mattil wrote:

> ...And your quoting skill are nil.

Gotta have something worth quoting to start with.

> Might I suggest you limit yourself to those discussions pertaining to
> Macs, Windows and how bad the Bush Administration was ?

No.

Might I suggest you kill-file me?

William Mattil

unread,
Jul 16, 2009, 12:35:39 PM7/16/09
to
Davoud wrote:

>
> Might I suggest you kill-file me?
>


You can suggest. But I won't do that as it's the last refuge of the weak.


You have a good day now.

Curtis Croulet

unread,
Jul 16, 2009, 1:07:37 PM7/16/09
to
> When asked to provide even one "imperfection" of an AP-1200GTO you
> declined to do so.

Between now and that distant day when I'm in a serious position to buy an
A-P mount, I'll certainly have the opportunity to personally talk to owners.
There's no rush. But this has certainly been an odd discussion here. I've
been told to go to a Yahoo! group to have *them* explain the freely-uttered
remark of someone in this thread. If the 'imperfections" were a simple
matter of awkwardly-placed adjustment knobs or a confusing set-up sequence,
I'd have had my answer yesterday. I sense that something is going on here
that is quite separate from A-P and their mounts. Perhaps there's something
personal between Mr. Davoud and Rolando. I'll let the matter drop for now.

Davoud

unread,
Jul 16, 2009, 1:39:45 PM7/16/09
to
Curtis Croulet:

> Perhaps there's something
> personal between Mr. Davoud and Rolando. I'll let the matter drop for now.

Let's clear that up right now. My last encounter with Roland was in
person, and it was a brief, cordial encounter. In the course of that
encounter I provided to Marj a nice photograph of my A-P 1200GTO in
use, at her request. While I have met Roland and Marj a couple of
times, always under cordial circumstances, they do not know me
personally; I would be extremely surprised if either of them was able
to attach my name to a photo of myself, unless the one I gave them was
in front of them. This is as expected; they're busy people, and they
meet a lot of members of the public, owners and non-owners alike.

In short, your assertion is made from whole cloth.

Curtis Croulet

unread,
Jul 16, 2009, 1:50:50 PM7/16/09
to
> In short, your assertion is made from whole cloth.

A hypothesis, not an assertion. But it looks like I hit a nerve.

Pierre Vandevenne

unread,
Jul 16, 2009, 1:57:21 PM7/16/09
to
On Jul 16, 5:25 pm, William Mattil <wrmat...@ix.netcom.com> wrote:

> before you even try...... I, along with many others, do not consider a
> Gemini Equipped G-11 to be imperfect either. Because that statement
> means nothing. Perfection is only in the eye of the beholder.

Fair enough. No need to get into a fight then?

Pierre Vandevenne

unread,
Jul 16, 2009, 1:59:50 PM7/16/09
to
On Jul 16, 7:39 pm, Davoud <s...@sky.net> wrote:

> personally; I would be extremely surprised if either of them was able
> to attach my name to a photo of myself, unless the one I gave them was

Now that you've posted the picture of your historical meeting with
Chris, you'll both be major attractions at future astronomical events!

William Mattil

unread,
Jul 16, 2009, 2:18:11 PM7/16/09
to
Curtis Croulet wrote:
>> In short, your assertion is made from whole cloth.
>
> A hypothesis, not an assertion. But it looks like I hit a nerve.


You'll notice that he only mentioned personal meetings as opposed to
email exchanges ? Curious. But not unexpected <g>

William Mattil

unread,
Jul 16, 2009, 2:19:37 PM7/16/09
to


You see any fight going on ?

Curtis Croulet

unread,
Jul 16, 2009, 3:18:50 PM7/16/09
to
> You'll notice that he only mentioned personal meetings as opposed to email
> exchanges ? Curious. But not unexpected <g>

I suspect lawyers and litigation are at the heart of this. That would be a
credible explanation for the strangeness of this conversation. I've never
seen a Usenet discussion where an aggrieved customer was not eager to air a
complaint, but a threat on legal stationery would certainly put a wet
blanket over it.

William Mattil

unread,
Jul 16, 2009, 4:05:16 PM7/16/09
to


Certainly could be the case. Well, at any rate.. *if* the Lottery hits
and you find yourself potentially in the market there are many who will
give very good references for the AP Mounts, and the Bisque mount as
well. Regardless of what innuendo might surface here.

http://tech.groups.yahoo.com/group/ap-gto/

Is a good place to start and you can read about all the issues and make
an informed decision.


But truth be told, depending on your payload and how much effort you
want to put into it a Gemini equipped G-11 can also work very well. But
I would hesitate recommending them to someone who is afraid of tinkering
with worm adjustments etc. But truthfully - somewhere I have a
screenshot of a MaximDL tracking graph of my G-11 holding a 10inch f/6
Newtonian/STL11K showing accuracy that I even found hard to believe.
plus/minus probably .25 of a pixel for a long period covering several
hours while imaging, and guiding at ~1700mm. Payload in excess of 50
pounds too. It did this the final night before it (the G-11) was due to
be shipped off to its new owner. And I never burned up a motor either.
Been a few complaints about the G-11/Gemini and motors. But I never saw
that. I've had two Losmandy mounts. A G-11 and an older GM-100. I won't
lie, the GM-100 was better at dealing with payload and wind. But it
wasn't GoTo. So while some people might infer this discussion to be
about how much better the AP mounts are, that is blatantly false. The
G-11 was not a good choice for unattended, robotic operation. That's why
it was sold.

However, once the price difference becomes less of an issue, the better
mounts almost certainly will provide better performance. Even more so at
longer focal lengths.


Regards

Davoud

unread,
Jul 16, 2009, 4:58:42 PM7/16/09
to
Davoud:

> > In short, your assertion is made from whole cloth.

Curtis Croulet:

> A hypothesis, not an assertion. But it looks like I hit a nerve.

Absolutely. People will answer false hypotheses or assertions when the
assertion applies to them personally. Human nature.

Davoud

unread,
Jul 16, 2009, 5:00:28 PM7/16/09
to
William Mattil:

> > You'll notice that he only mentioned personal meetings as opposed to email
> > exchanges ? Curious. But not unexpected <g>

Curtis Croulet:


> I suspect lawyers and litigation are at the heart of this. That would be a
> credible explanation for the strangeness of this conversation. I've never
> seen a Usenet discussion where an aggrieved customer was not eager to air a
> complaint, but a threat on legal stationery would certainly put a wet
> blanket over it.

This is going way beyond hilarious. Why don't you ask Roland if he
knows me and if either of us is suing the other? Court records are also
available on line--one can't sue in secret. Let me know what you learn.

Of course, I could be part of the moon-landing hoax/aliens held at Area
51 coverup, and involved of a secret lawsuit as well. But if I win it's
going to be hard to collect whatever I'm suing for from someone who
doesn't know he's been sued!

How was I to know when I responded to your initial question that I was
dealing with a paranoid conspiracy theorist? Nothing here, so you begin
making stuff up in your futile search for secrets. Have at it. I simply
don't know how to deal with paranoia.

Davoud

unread,
Jul 16, 2009, 5:05:36 PM7/16/09
to
William Mattil wrote:

> Certainly could be the case. Well, at any rate.. *if* the Lottery hits
> and you find yourself potentially in the market there are many who will
> give very good references for the AP Mounts

Just as I did.

> http://tech.groups.yahoo.com/group/ap-gto/
>
> Is a good place to start and you can read about all the issues and make
> an informed decision.

Just what I said.

> But truth be told, depending on your payload and how much effort you
> want to put into it a Gemini equipped G-11 can also work very well. But
> I would hesitate recommending them to someone who is afraid of tinkering
> with worm adjustments etc. But truthfully - somewhere I have a
> screenshot of a MaximDL tracking graph of my G-11 holding a 10inch f/6
> Newtonian/STL11K showing accuracy that I even found hard to believe.
> plus/minus probably .25 of a pixel for a long period covering several
> hours while imaging, and guiding at ~1700mm. Payload in excess of 50
> pounds too.

A virtual echo of my own words. It was the need for more payload
capacity that led me to the A-P 1200GTO.

Curtis Croulet

unread,
Jul 16, 2009, 9:06:24 PM7/16/09
to
> How was I to know when I responded to your initial question that I was
> dealing with a paranoid conspiracy theorist? Nothing here, so you begin
> making stuff up in your futile search for secrets. Have at it. I simply
> don't know how to deal with paranoia.

You're looking at paranoia in the mirror, which you pretty much spelled out
in a post yesterday. Else you would have answered my original query about
"imperfections." I'm trying to give you the benefit of the doubt, that
there's a credible reason for your deferring an explanation of your own
statement to third parties in another forum. OK. Have it your way. There
is no credible reason. So be it.

lou feeders

unread,
Jul 17, 2009, 7:04:21 AM7/17/09
to
"Curtis Croulet" <calypte@**NO**SPAM**verizon.net> wrote in message
news:k8Q7m.2813$P5....@nwrddc02.gnilink.net...

This "Davoud", David, or whatever isn't a respecter of opinions of other
people. He tends to flame the group, sometimes with irrational statements
and then wonders why he gets criticized. Extremely opinionated and then
tries to poorly justify himself even if he's totally wrong, which happens
often.

Davoud

unread,
Jul 17, 2009, 3:46:59 PM7/17/09
to
Davoud:

> > personally; I would be extremely surprised if either of them was able
> > to attach my name to a photo of myself, unless the one I gave them was

Pierre Vandevenne:


> Now that you've posted the picture of your historical meeting with
> Chris, you'll both be major attractions at future astronomical events!

LOL! Chris gave a great talk on guiding, and I think it is fair to say
he was a major attraction at MWAIC. Me, sitting toward the back, asking
the occasional dumb question? Not so attractive.

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