Date   

Re: Robin Casady tandem bar

ancient.sull
 

--- In ap-gto@..., "Dave" <taka@...> wrote:

The positions on the TRIAD bar are fixed,
The positions where you put the OTAs/saddles relative to the Triad
Bar are fixed but the position of the Triad Bar relative to the mount
is not fixed. You can slide it right left in the saddle.

You can slide the Tandem Bar right-left as well, but with a Tandem
Bar (depending in part on the length of the saddle) you can't move so
far as to get one of the two saddles directly over the center of the
mount.

With a Triad Bar (because one of the three positions is in the
middle) you _can_ put one scope right over the mount.

That is a help if you have a really heavy scope+ camera and a really
light scope+camera.

Drew S.


Re: Robin Casady tandem bar

snightingale40 <snightingale40@...>
 

Hi Dave,

I'm not clear on what you mean by:

"...mounted my scopes directly to the TRIAD"

You aren't using dovetail saddles?

I added up the weight and with rings, etc. should be under 80 pounds;
the mount is rated for 140 so that's OK, especially for visual.

The bad news is that I believe my roll-off roof will be blocked from
opening by the added "width" of the set up when parked. It's the kind
of thing I like to think of BEFORE rigging all this stuff together.
If so (I'll measure later) I'll either go back to the tandem bar if
that will work, or take a chainsaw to the end of the roof!

Steve



--- In ap-gto@..., "Dave" <taka@...> wrote:

The positions on the TRIAD bar are fixed, although Robin may be
able to make you a
custom bar. I have my TOA-130 next to the C11, you could probably
put the 160 on the
end opposite the C11. I don't think it will fit next to it.

How much do the AP scopes weigh? You might need a counterweight
extension bar, but if
you are just visual I doubt you will have a problem. I have
probably at least 12 lbs of
imaging equipment in my setup.

I had flexure problems using the TGAD with the TRIAD, once I
removed it and mounted
my scopes directly to the TRIAD, I don't seem to have any issues.
I am currently using the
TOA-130 for imaging and the FS-102 for guiding.

-Dave

--- In ap-gto@..., "snightingale40" <snightingale40@>
wrote:

Also---

How adjustable is the center position of the triad bar? I would
need
the center scope (the 160) offset slightly to fit with the C11;
the
center to center is a little over 10 inches.

Thanks,

Steve






--- In ap-gto@..., "snightingale40" <snightingale40@>
wrote:

Thanks Sab and Dave,

Well, I was assuming I'd do the C11 with one of my refractors,
now
you all got me thinking of the triad.

I own three OTA's:

C11
AP160
AP130 Gran Turismo.

Don't have the weights handy, but what do you think of ALL
THREE on
a
triad bar on my AP1200? I'm not sure there is a reason to do
this,
but I could always just have two OTA's on it.

I'm replacing my C11 tube with carbon fiber this week. Just the
thought of all this stuff on my AP1200 makes me.....well, never
mind.

But seriously, do you think this would work? I'm purely visual
at
this time, so some slight flexure could be tolerated, but may
try
some imaging at some point. I keep my set-up permanently in a
roll-
off roof observatory.

Steve






Re: Autoconnect: No

Joe Zeglinski
 

I think you're right on that, but old habits die hard.

Joe

----- Original Message -----
From: <chris1011@...>
To: <ap-gto@...>
Sent: Monday, March 02, 2009 11:23 AM
Subject: Re: [ap-gto] Re: Autoconnect: No


In a message dated 3/1/2009 11:43:50 AM Central Standard Time,
J.Zeglinski@... writes:


I find it quite difficult to use the PAS in this large metropolis,
I find it super fast and super easy to use my Quick Star Drift Method. Much
faster and much more accurate than any of the other half dozen methods.

Rolando


Re: Robin Casady tandem bar

Dave Weaver
 

The positions on the TRIAD bar are fixed, although Robin may be able to make you a
custom bar. I have my TOA-130 next to the C11, you could probably put the 160 on the
end opposite the C11. I don't think it will fit next to it.

How much do the AP scopes weigh? You might need a counterweight extension bar, but if
you are just visual I doubt you will have a problem. I have probably at least 12 lbs of
imaging equipment in my setup.

I had flexure problems using the TGAD with the TRIAD, once I removed it and mounted
my scopes directly to the TRIAD, I don't seem to have any issues. I am currently using the
TOA-130 for imaging and the FS-102 for guiding.

-Dave

--- In ap-gto@..., "snightingale40" <snightingale40@...> wrote:

Also---

How adjustable is the center position of the triad bar? I would need
the center scope (the 160) offset slightly to fit with the C11; the
center to center is a little over 10 inches.

Thanks,

Steve






--- In ap-gto@..., "snightingale40" <snightingale40@>
wrote:

Thanks Sab and Dave,

Well, I was assuming I'd do the C11 with one of my refractors, now
you all got me thinking of the triad.

I own three OTA's:

C11
AP160
AP130 Gran Turismo.

Don't have the weights handy, but what do you think of ALL THREE on
a
triad bar on my AP1200? I'm not sure there is a reason to do this,
but I could always just have two OTA's on it.

I'm replacing my C11 tube with carbon fiber this week. Just the
thought of all this stuff on my AP1200 makes me.....well, never
mind.

But seriously, do you think this would work? I'm purely visual at
this time, so some slight flexure could be tolerated, but may try
some imaging at some point. I keep my set-up permanently in a roll-
off roof observatory.

Steve






Re: Robin Casady tandem bar

snightingale40 <snightingale40@...>
 

Also---

How adjustable is the center position of the triad bar? I would need
the center scope (the 160) offset slightly to fit with the C11; the
center to center is a little over 10 inches.

Thanks,

Steve






--- In ap-gto@..., "snightingale40" <snightingale40@...>
wrote:

Thanks Sab and Dave,

Well, I was assuming I'd do the C11 with one of my refractors, now
you all got me thinking of the triad.

I own three OTA's:

C11
AP160
AP130 Gran Turismo.

Don't have the weights handy, but what do you think of ALL THREE on
a
triad bar on my AP1200? I'm not sure there is a reason to do this,
but I could always just have two OTA's on it.

I'm replacing my C11 tube with carbon fiber this week. Just the
thought of all this stuff on my AP1200 makes me.....well, never
mind.

But seriously, do you think this would work? I'm purely visual at
this time, so some slight flexure could be tolerated, but may try
some imaging at some point. I keep my set-up permanently in a roll-
off roof observatory.

Steve






Re: Robin Casady tandem bar

snightingale40 <snightingale40@...>
 

Thanks Sab and Dave,

Well, I was assuming I'd do the C11 with one of my refractors, now
you all got me thinking of the triad.

I own three OTA's:

C11
AP160
AP130 Gran Turismo.

Don't have the weights handy, but what do you think of ALL THREE on a
triad bar on my AP1200? I'm not sure there is a reason to do this,
but I could always just have two OTA's on it.

I'm replacing my C11 tube with carbon fiber this week. Just the
thought of all this stuff on my AP1200 makes me.....well, never mind.

But seriously, do you think this would work? I'm purely visual at
this time, so some slight flexure could be tolerated, but may try
some imaging at some point. I keep my set-up permanently in a roll-
off roof observatory.

Steve













--- In ap-gto@..., "Dave" <taka@...> wrote:

See the photos/dsw for a picture of my AP1200 with TRIAD and FS-
102 / TOA-130 / C11.

-Dave

--- In ap-gto@..., "snightingale40" <snightingale40@>
wrote:

Great suggestion Drew---thanks!

Steve

--- In ap-gto@..., "ancient.sull" <ancient.sull@>
wrote:

If you are considering a tandem bar, consider a Triad bar
instead.
I
use a Triad bar, even though I only have at most two OTAs
because
with
the Triad bar you can put the heaviest scope directly over the
center
of the mount. The Triad makes it simple to balance things in
all
three
axes even running a very heavy scope in the center and a light
refractor guidescope and guide camera on the side.

Drew Sullivan



--- In ap-gto@..., "snightingale40"
<snightingale40@>
wrote:

Hi,

I just got the bright idea that my AP1200 would handle both
my
C11
and
AP130GT nicely as a side-by-side arrangement


Re: Robin Casady tandem bar

Sabahattin Bilsel
 

Hi Steve,
 
Here my custom solution for 3 scopes or even more :) on AP1200.
http://www.pbase.com/sabbilsel/image/109248131
 
Next 2 images top view from both sides
 
Regards,
Sab.

--- On Mon, 3/2/09, Dave <taka@...> wrote:

From: Dave <taka@...>
Subject: [ap-gto] Re: Robin Casady tandem bar
To: ap-gto@...
Date: Monday, March 2, 2009, 5:44 AM






See the photos/dsw for a picture of my AP1200 with TRIAD and FS-102 / TOA-130 / C11.

-Dave

--- In ap-gto@yahoogroups. com, "snightingale40" <snightingale40@ ...> wrote:

Great suggestion Drew---thanks!

Steve

--- In ap-gto@yahoogroups. com, "ancient.sull" <ancient.sull@ >
wrote:

If you are considering a tandem bar, consider a Triad bar instead.
I
use a Triad bar, even though I only have at most two OTAs because
with
the Triad bar you can put the heaviest scope directly over the
center
of the mount. The Triad makes it simple to balance things in all
three
axes even running a very heavy scope in the center and a light
refractor guidescope and guide camera on the side.

Drew Sullivan



--- In ap-gto@yahoogroups. com, "snightingale40" <snightingale40@ >
wrote:

Hi,

I just got the bright idea that my AP1200 would handle both my
C11
and
AP130GT nicely as a side-by-side arrangement


Re: 600 GTO stalling

Jeff Young <jey@...>
 

Dale --

I don't believe the 600 has axis dampeners. (I think the 900 and 1200 axis dampeners operate on "middle" piece -- ie: that which rotates with the worm wheel -- so they will put some very small load on the motor _whether or not_ the clutches are engaged.)

Cheers,
-- Jeff.


From: ap-gto@... [mailto:ap-gto@...] On Behalf Of Dale Ireland
Sent: Sunday, March 01, 2009 4:15 PM
To: ap-gto@...
Subject: RE: [ap-gto] 600 GTO stalling


Jeff
Yes I understand but there must be some lubricants in the bearings. I don't
see any dampen adjustment like the 900 has but the effect is the same.
Also, don't the dampening knobs on the 900 put a load on the motors when the
clutches are engaged?
Dale

-----Original Message-----
From: ap-gto@...<mailto:ap-gto%40yahoogroups.com> [mailto:ap-gto@...<mailto:ap-gto%40yahoogroups.com>]
On Behalf Of Jeff Young
Sent: Sunday, March 01, 2009 2:20 AM
To: ap-gto@...<mailto:ap-gto%40yahoogroups.com>
Subject: RE: [ap-gto] 600 GTO stalling

Dale --

Think of the RA axis as having 3 pieces: the fixed piece
(with the motor and worm), the worm wheel, and the part that
carries the telescope. The motor only sees motion between
the fixed part and the worm wheel, while the clutch controls
the motion between the worm wheel and the part that carries
the DEC axis and telescope.

None of this is to say that you don't have stiff lubricants;
just that stiff movement with the clutch loose is not
measuring the stiffness of the lubricants between the worm
and the worm wheel (but rather that between the worm wheel
and the part that carries the DEC axis and telescope).

Cheers,
-- Jeff.


From: ap-gto@...<mailto:ap-gto%40yahoogroups.com> [mailto:ap-gto@...<mailto:ap-gto%40yahoogroups.com>]
On Behalf Of Dale Ireland
Sent: Friday, February 27, 2009 11:51 PM
To: ap-gto@...<mailto:ap-gto%40yahoogroups.com>
Subject: [ap-gto] 600 GTO stalling


Hello

I have a 600 GTO that is about 10 years old. I have used it
very little because I got a 900 GTO right after the 600.
I had the 600 out this week for the first time in a year or
so and it is very stiff in RA and the yellow light comes on
and it stops tracking (although I still hear some motor
sounds). It was about 25F. The problem comes and goes. I have
a fully charged battery and the load is balanced. It is stiff
even with the clutch disengaged and hard to determine
balance. It is a lot better when inside and warm so I am
guessing it has stiff lubricants. Can I fix this at home or
must I send the unit in for repair. Is there another
explanation for the drag?

Dale







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Re: Autoconnect: No

Roland Christen
 

In a message dated 3/1/2009 11:43:50 AM Central Standard Time,
J.Zeglinski@... writes:


I find it quite difficult to use the PAS in this large metropolis,
I find it super fast and super easy to use my Quick Star Drift Method. Much
faster and much more accurate than any of the other half dozen methods.

Rolando


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Re: 600 GTO stalling

Roland Christen
 

In a message dated 3/1/2009 10:14:39 AM Central Standard Time,
direland@... writes:


Yes I understand but there must be some lubricants in the bearings. I don't
see any dampen adjustment like the 900 has but the effect is the same.
There are no damping adjustments on the 900 in the GTO versions.

Rolando


**************
A Good Credit Score is 700 or Above. See yours in just 2
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Re: 600 GTO stalling

Roland Christen
 

In a message dated 2/27/2009 5:51:11 PM Central Standard Time,
direland@... writes:


I had the 600 out this week for the first time in a year or so and it
is very stiff in RA and the yellow light comes on and it stops tracking
(although I still hear some motor sounds). It was about 25F. The
problem comes and goes. I have a fully charged battery and the load is
balanced. It is stiff even with the clutch disengaged and hard to
determine balance. It is a lot better when inside and warm so I am
guessing it has stiff lubricants. Can I fix this at home or must I send
the unit in for repair. Is there another explanation for the drag?
Being stiff with the clutch loose and having it stall are two different
issues. The clutch looseness or tightness has nothing to do with the load on the
motor.

If you want to have the mount checked out and overhauled, please contract
Christine at AP for a return number.

Rolando


**************
A Good Credit Score is 700 or Above. See yours in just 2
easy steps!
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Re: Robin Casady tandem bar

Dave Weaver
 

See the photos/dsw for a picture of my AP1200 with TRIAD and FS-102 / TOA-130 / C11.

-Dave

--- In ap-gto@..., "snightingale40" <snightingale40@...> wrote:

Great suggestion Drew---thanks!

Steve

--- In ap-gto@..., "ancient.sull" <ancient.sull@>
wrote:

If you are considering a tandem bar, consider a Triad bar instead.
I
use a Triad bar, even though I only have at most two OTAs because
with
the Triad bar you can put the heaviest scope directly over the
center
of the mount. The Triad makes it simple to balance things in all
three
axes even running a very heavy scope in the center and a light
refractor guidescope and guide camera on the side.

Drew Sullivan



--- In ap-gto@..., "snightingale40" <snightingale40@>
wrote:

Hi,

I just got the bright idea that my AP1200 would handle both my
C11
and
AP130GT nicely as a side-by-side arrangement


Re: Autoconnect: No

Dean S
 

Rick,

If it does rotate with the RA on the 1200 I have never noticed, and will have to look at it tomorrow night when I set it back up. And to make sure we are saying the same thing, you are saying it automatically turns as the mount moves? Not just rotating by hand?

I don't see how it can turn with with the RA since it screws into the back the same way on both mounts?

And I do use the same PAS with both the same way and it gets me very close on both. Then I do a few minutes with PemPro to fine tune them. Just did them last week at WSP with ease. I don't understand when you say they are different?

Dean

----- Original Message -----
From: "Rick K" <JunkMailGoesHere@...>
To: <ap-gto@...>
Sent: Sunday, March 01, 2009 3:41 PM
Subject: [ap-gto] Re: Autoconnect: No


This isn't quite true but it doesn't really matter as far as polar
aligning goes. The PAS does rotate with the rotation of the RA axis on
the 900 and 1200. In fact, it is the method used to align the PAS to
the polar axis of these mounts. It does not rotate with the rotation
of the Mach1GTO so accurate alignment of the PAS cannot be done in
this manner. To extremely accurately align the PAS on a Mach1, one has
to reverse the process. Polar align the scope using a drift method. Do
NOT use the PAS. Then, once the mount is polar aligned, shim the PAS
to align it to the mount.

Rick.


--- In ap-gto@..., Dean S <dean@...> wrote:

On both my mach1 and 1200 it does not rotate worm the mount. And once
aligned it will always be correct when pointing at Polaris.

And as William said, it should not take long to set it anyways.


Sent from my iPhone

On Mar 1, 2009, at 9:12 AM, "Joseph Zeglinski"
<J.Zeglinski@...> wrote:

Hi Dean,

I can go and triple check, but I'm pretty certain the polar axle
carrying the screwed in polar scope rotates.
The "exception is the Mach-1", I believe, in which the PAS does not
move,
since if it did the cables through the RA axle would twist.
Otherwise, if you are slow and meticulous in aligning both Polaris
and the
two dimmer stars, you would be chasing them and correcting all
night, since
they rotate in the polar scope's field of view.

Joe

----- Original Message -----
From: "Dean S" <dean@...>
To: <ap-gto@...>
Sent: Sunday, March 01, 2009 6:22 AM
Subject: [Bulk] Re: [ap-gto] Re: Autoconnect: No


Why do you think it makes a difference? The polar scope does not
rotate anyways.



Sent from my iPhone



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Re: Robin Casady tandem bar

snightingale40 <snightingale40@...>
 

Great suggestion Drew---thanks!

Steve

--- In ap-gto@..., "ancient.sull" <ancient.sull@...>
wrote:

If you are considering a tandem bar, consider a Triad bar instead.
I
use a Triad bar, even though I only have at most two OTAs because
with
the Triad bar you can put the heaviest scope directly over the
center
of the mount. The Triad makes it simple to balance things in all
three
axes even running a very heavy scope in the center and a light
refractor guidescope and guide camera on the side.

Drew Sullivan



--- In ap-gto@..., "snightingale40" <snightingale40@>
wrote:

Hi,

I just got the bright idea that my AP1200 would handle both my
C11
and
AP130GT nicely as a side-by-side arrangement


Re: Robin Casady tandem bar

ancient.sull
 

If you are considering a tandem bar, consider a Triad bar instead. I
use a Triad bar, even though I only have at most two OTAs because with
the Triad bar you can put the heaviest scope directly over the center
of the mount. The Triad makes it simple to balance things in all three
axes even running a very heavy scope in the center and a light
refractor guidescope and guide camera on the side.

Drew Sullivan



--- In ap-gto@..., "snightingale40" <snightingale40@...>
wrote:

Hi,

I just got the bright idea that my AP1200 would handle both my C11
and
AP130GT nicely as a side-by-side arrangement


Re: Autoconnect: No

observe_m13
 

This isn't quite true but it doesn't really matter as far as polar
aligning goes. The PAS does rotate with the rotation of the RA axis on
the 900 and 1200. In fact, it is the method used to align the PAS to
the polar axis of these mounts. It does not rotate with the rotation
of the Mach1GTO so accurate alignment of the PAS cannot be done in
this manner. To extremely accurately align the PAS on a Mach1, one has
to reverse the process. Polar align the scope using a drift method. Do
NOT use the PAS. Then, once the mount is polar aligned, shim the PAS
to align it to the mount.

Rick.

--- In ap-gto@..., Dean S <dean@...> wrote:

On both my mach1 and 1200 it does not rotate worm the mount. And once
aligned it will always be correct when pointing at Polaris.

And as William said, it should not take long to set it anyways.


Sent from my iPhone

On Mar 1, 2009, at 9:12 AM, "Joseph Zeglinski"
<J.Zeglinski@...> wrote:

Hi Dean,

I can go and triple check, but I'm pretty certain the polar axle
carrying the screwed in polar scope rotates.
The "exception is the Mach-1", I believe, in which the PAS does not
move,
since if it did the cables through the RA axle would twist.
Otherwise, if you are slow and meticulous in aligning both Polaris
and the
two dimmer stars, you would be chasing them and correcting all
night, since
they rotate in the polar scope's field of view.

Joe

----- Original Message -----
From: "Dean S" <dean@...>
To: <ap-gto@...>
Sent: Sunday, March 01, 2009 6:22 AM
Subject: [Bulk] Re: [ap-gto] Re: Autoconnect: No


Why do you think it makes a difference? The polar scope does not
rotate anyways.



Sent from my iPhone



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Re: Autoconnect: No

observe_m13
 

Sorry but there is no need to have the mount powered up other than to
supply a bit of energy to light up the LED to see the reticle. Polar
alignment is about aligning the RA axis of the mount to the North
Celestial Pole by diddling around with the altitude and azimuth of the
mount. For visual, you can forget the PAS and just look through the
hole, centering Polaris as well as you can by eye. Good enough for
goto operation with a low power wide field eyepiece once it is synced
up. One might need to hit "recal" every so often but pretty good for
most of the sky.
If you want to use the PAS, do so! Once again the mount need not be
powered other than for providing those fickle electrons to the reticle
LED. One could use the battery pack but I find it simpler to get power
from the mount since I probably want the mount running eventually
anyway. The PAS method will, if done quickly, be good enough to do
goto's across the entire sky. With a fair bit of care, and if the PAS
has been tuned in and aligned to the mount, I can use the PAS to align
to where I don't have to use drift aligning for at least 10 and
sometimes 15 minute or longer subs.
You just can't beat Roland's CCD method or other (PEMPRO, etc) CCD
drift aligning to really nail things down if required, but they are
more time consuming.

RIck.


--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@...> wrote:

Hi Dave,

There may be one other problem with "not having the mount power
up in
tracking mode", as you would like.
Many people, who don't have a permanent setup in an observatory,
use the
PASILLx Polar Alignment Scope to get at least an initial good
alignment. If
you were to power up and the mount is not tracking, then this kind of
alignment would be difficult, since the pole star would be moving in
the
reticle's field of view, but the PAS is stationary. You would be
chasing a
moving target. I made that mistake once, when in a hurry, I forgot
to power
up the AP-900, and started using the PAS. Now I am very careful to
make
sure that the scope is tracking on power up.

Joe

----- Original Message -----
From: "Dave" <taka@...>
To: <ap-gto@...>
Sent: Saturday, February 28, 2009 12:09 AM
Subject: [Bulk] [ap-gto] Re: Autoconnect: No


I always park mine with ref park 1 and resume as a cold start. I
would
prefer to not have
the servos start moving the mount when I power it on. Couldn't
this be
made an option if
the mount was parked? One day I powered it on in the park
position and
forgot about it, it
almost ran into the pier.

Thanks,
-Dave


Re: Autoconnect: No

William R. Mattil <wrmattil@...>
 

Joseph Zeglinski wrote:
Not really Bill,

I find it quite difficult to use the PAS in this large metropolis, where I find myself lucky if I can even spot Polaris, never mind the other two fuzzies.
This has nothing at all to do with the rotation, or lack of, of the PAS.


Then, my vision isn't what it used to be, so the tiny eyepiece on the PAS is a bear to use. Finally, at Lat 45, its darned uncomfortable squinting up at a milky night sky from that position - at any higher latitude, I would have to saddle the pier. After that, there is the continued exertion for two star alignment. I hope to adapt a webcam to the PAS for this task later this year.
Again - this isn't relevant to the discussion. But if it pains you so to polar align the mount there are a lot of other options available.
So, getting at least two of the reference stars aligned, takes me a while. Hope you can appreciate that, Bill.
Sure I can. I just don't understand your continual whining about it. You have demonstrated in many other threads your proclivity towards excessive complexity to solve a relatively simple "problem". I mean really if it is such a freaking problem hire somebody to do it for you. Seriously ... I dislike having to carry all of my astro gear in and out of the house. But I don't whine about it. I'm not going to engineer a robot to carry it either.

And the PAS requires you to move your eye around the FOV a bit..... Yeah we all know that seeing the other two alignment stars in mag 2 skies can be a problem. In fact, truth be told, when I set up in the back yard and use the PAS I only use Polaris and one other star. The other one cannot be seen due to skyglow.
By the way Bill, do you have an observatory, or do you set up your portable system every time?
I have an Observatory and due to the walls I cannot even use the PAS. And No ... I didn't engineer a series of mirrors to enable me to use it either. I drift aligned the mount. It was no problem. And I also, as mentioned earlier, set up another mount in the back yard and also at remote locations. So I use the PAS for this. And after two major surgeries this past year, one on my neck, I can still manage to use the PAS, even in my light polluted skies without having to Engineer some ridiculous solution so that I don't have to, God Forbid, kneel down.

I also have an assortment of Piers in different sizes. And the shorter ones require more exertion on my part to use. But I don't feel the need to write an encyclopedia about it either.


Maybe you younger folks find it easier.
Maybe we just don't whine about it endlessly ?

My Apologies to the group.


Bill



--
William R. Mattil

http://www.celestial-images.com


Re: Autoconnect: No

Larry Phillips
 

Despite what you say, which is true for me also, having the mount
running should have no affect on doing a polar alignment.

Larry

--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@...>
wrote:

Not really Bill,

I find it quite difficult to use the PAS in this large
metropolis, where
I find myself lucky if I can even spot Polaris, never mind the
other two
fuzzies. Then, my vision isn't what it used to be, so the tiny
eyepiece on
the PAS is a bear to use. Finally, at Lat 45, its darned
uncomfortable
squinting up at a milky night sky from that position - at any
higher
latitude, I would have to saddle the pier. After that, there is the
continued exertion for two star alignment. I hope to adapt a
webcam to the
PAS for this task later this year.

So, getting at least two of the reference stars aligned, takes
me a
while. Hope you can appreciate that, Bill. By the way Bill, do you
have an
observatory, or do you set up your portable system every time?
Maybe you younger folks find it easier.

Joe

----- Original Message -----
From: "William R. Mattil" <wrmattil@...>
To: <ap-gto@...>
Sent: Sunday, March 01, 2009 11:37 AM
Subject: Re: [ap-gto] Re: Autoconnect: No


Joseph Zeglinski wrote:
Hi Dean,

I can go and triple check, but I'm pretty certain the polar
axle
carrying the screwed in polar scope rotates.
The "exception is the Mach-1", I believe, in which the PAS does
not move,
since if it did the cables through the RA axle would twist.
Otherwise, if you are slow and meticulous in aligning both
Polaris and
the
two dimmer stars, you would be chasing them and correcting all
night,
since
they rotate in the polar scope's field of view.


I think what Dean meant, and he can feel free to correct me, is
that no
one really cares if the mount is powered up or not while using
the PAS.
Why ? Because it doesn't matter. If it takes someone that long to
use
the PAS then they have much bigger problems in life.

Joe - you seem to be skirting the slippery slope of "Anal
Retentiveness
here"

Bill

--
William R. Mattil

http://www.celestial-images.com



------------------------------------

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Re: Autoconnect: No

Joe Zeglinski
 

Not really Bill,

I find it quite difficult to use the PAS in this large metropolis, where I find myself lucky if I can even spot Polaris, never mind the other two fuzzies. Then, my vision isn't what it used to be, so the tiny eyepiece on the PAS is a bear to use. Finally, at Lat 45, its darned uncomfortable squinting up at a milky night sky from that position - at any higher latitude, I would have to saddle the pier. After that, there is the continued exertion for two star alignment. I hope to adapt a webcam to the PAS for this task later this year.

So, getting at least two of the reference stars aligned, takes me a while. Hope you can appreciate that, Bill. By the way Bill, do you have an observatory, or do you set up your portable system every time?
Maybe you younger folks find it easier.

Joe

----- Original Message -----
From: "William R. Mattil" <wrmattil@...>
To: <ap-gto@...>
Sent: Sunday, March 01, 2009 11:37 AM
Subject: Re: [ap-gto] Re: Autoconnect: No


Joseph Zeglinski wrote:
Hi Dean,

I can go and triple check, but I'm pretty certain the polar axle
carrying the screwed in polar scope rotates.
The "exception is the Mach-1", I believe, in which the PAS does not move,
since if it did the cables through the RA axle would twist.
Otherwise, if you are slow and meticulous in aligning both Polaris and the
two dimmer stars, you would be chasing them and correcting all night, since
they rotate in the polar scope's field of view.


I think what Dean meant, and he can feel free to correct me, is that no
one really cares if the mount is powered up or not while using the PAS.
Why ? Because it doesn't matter. If it takes someone that long to use
the PAS then they have much bigger problems in life.

Joe - you seem to be skirting the slippery slope of "Anal Retentiveness
here"

Bill

--
William R. Mattil

http://www.celestial-images.com



------------------------------------

To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gtoYahoo! Groups Links