Date   

Re: questions from a possible 900GTO owner

Joe Zeglinski
 

Hi Gil,

I did a few quick measurements of my Losmandy G11 mount bottom, and saw
the dimension Drawing of the AP900 Pier Adapter Plate, and see it is easy to
make a "reducing" adapter so that the top of this 2" or 3" tall ring has the
shape and 6 small screw holes - as though this were the top of any AP tripod -
to accept the AP900, then is cut inward, to the shape and dimensions of the
Losmandy head base at the bottom.

Here is a direct link to the AP "Pier Adapter" dimensions document, at
their Tech Support page, under the AP900 list of PDF documents (consider this
the same as the bottom of your AP900, which drops into an AP tripod pipe):

900 Mount Base (Pier Adapter) Dimensions (05-17-00)

The bottom of this plate is the same as the bottom of the AP900 Standard
or Rotating Pier Adapter, which you would be already using on that mount. Have
your machinist make the top 1/2 inch or so it accepts this base. The bottom
of the reducing adapter is just a narrower cylinder with 3 holes to screw in
the Losmandy G11 screws/knobs.
It's like a "gender changer" - female AP900 at the top (like the pipe), and
G11 male at the bottom.

After that, you can treat the AP900 mount as though it were a G11 mount -
for your Losmandy tripod - or with MA option, if you like using the Meade
tripod legs (or any other heavy photographic tripod) with a Losmandy MA bolted
on top of it.
This "reducing adapter" opens up both Losmandy and Meade tripods
compatibility for the AP900.

I assume you have purchased the optional Losmandy knobs - they are so
convenient. You might buy an extra set for your G11 adapter. They make it
soooo easy to just drop the heavy mount straight into it's pier, knobs and
all.
My plan is to make this "coupler as short as possible", so it stays
attached to the AP900 mount (pier adapter) permanently, just like the AP900
actually had a Losmandy G11 mount base. That way, I can simply drop the AP900
directly into my G11 tripod, or into my Losmandy Meade Pier Adapter (MA) -
same thing.

The down side, is that the AP900 mount still needs to fit into your
travelling case - you may have to remove a bit of foam since the Losmandy
adapter remains screwed to the bottom of the AP mount with those 6 permanent
screws. Since I haven't received my AP900 yet, I can still search for a
suitable case for it to fit this modified bottom shape.

NOTE:
If you buy a SCOPEGUARD case for the AP900, they use their own standard AP900
shaped pre-cut foam insert, which won't be cut for that 2 or 3 inch adapter -
and the case might even then be slightly too small (don't know). I plan on
using a suitable Pelican case, and remove the foam cubes myself to fit the end
result.

Since at this point you are just a "possible 900GTO owner" as you say,
then we are in the same boat. I won't start machining until it arrives so the
result can be test fitted to both parts.

Meanwhile, show your friend your current G11 tripod, and give him the
AP900 pier adapter plate dimension diagram, in preparation. It's so simple, AP
should have done this a long time ago, since a lot of AP mount owners are
current or former G11 owners as well. Makes VERY good marketing sense. Heck,
it may even help Scott sell more of HIS tripods, for those like me who don't
like the AP tripods. Then again ... maybe AP doesn't want to encourage
customers buying Losmandy's tripods, and Losmandy doesn't want people buying
AP's mounts instead of his own G11 etc :-)

I'll work on my own sketch for this soon, but I think there is enough data
for your friend's advice already.

Good luck,
Joe


Re: More follow-up on attaching TOA 150 to AP900

Geoff <geoffc@...>
 

The "hover mouse over image" will only work if javascript from the
bttechnologies site is allowed to execute in your local browser.

Geoff



Jeff wrote:

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I very much appreciate it if someone would show
pictures of this
plate, the ring and/or the whole set-up.
http://www.bttechnologies.com/bt_dp.htm
<http://www.bttechnologies.com/bt_dp.htm>

Scroll down to the Tak-02dp plate... Then "mouse over" the image. You have
to mouse over to see how the rings are attacthed.

jeff


Re: More follow-up on attaching TOA 150 to AP900

Jeff <jlc@...>
 

I very much appreciate it if someone would show
pictures of this
plate, the ring and/or the whole set-up.
http://www.bttechnologies.com/bt_dp.htm

Scroll down to the Tak-02dp plate... Then "mouse over" the image. You have
to mouse over to see how the rings are attacthed.

jeff


Re: questions from a possible 900GTO owner

Gjanek@...
 

any picture, or drawings you could make during construction would be appreciated. My neighbor owns a machine shop.
Thanks Gil

-------------- Original message --------------
From: "Joseph Zeglinski" <J.Zeglinski@rogers.com>
Hi,

Everything for an AP900 is extra, to make the price easier to take when
you first see it, I suppose. Would be nice if there were a check box order
sheet of "essential items", when you buy their mounts. After all, you have to
have some counter weights, unless the AP900 is for tour snapshot camera, and
you can't just attach it to a stub at the end of the DEC axle :-)
It's sort of having a sit down meal at a restaurant, and asked if you will be
requiring a plate and cutlery.

I'm going to make an G11 pier converter for myself, as soon as the new
AP900 arrives.
Actually, before I got the unexpected notification, I bought a Losmandy G11
Meade MA tripod adapter, which is just the short tube section at the very top
6 inches or so of the standard G11 pier. My intent was to use it on my
favourite tripod head, instead of the standard Losmandy one. Then, get a
second MA for a permanent G11 pier in the yard. I really like the design of
the Losmandy pier top.

Well, I have looked at all the combinations, and decided that the Meade
Adapter (MA), is still a good accessory, with it's Losmandy "drop-in-slot-and
twist" top for a G11. The way I see it, its is a trivial machining task to
make an AP900 to Losmandy MA, "step down, conversion ring" - at most, about 3
inches tall, with the AP's 6 button "post" screws for the bottom of the AP900.
Then, simply tap 3 holes (3/8-16), for the Losmandy optional mount knob set,
on the 8 inch to 6 inch step down ring, to drop into either the Losmandy
tripod, or into the Losmandy Meade tripod Adapter (MA). That solves a lot of
issues, especially if you don't like the AP portable pier style compared to
the Losmandy tripod.

AP should be selling this "trivial" item - they already sell other
Losmandy dovetails and plates.

Joe

----- Original Message -----
From: "dtlnew" <dtlnew@yahoo.com>
To: <ap-gto@yahoogroups.com>
Sent: Sunday, April 01, 2007 12:03 AM
Subject: [ap-gto] questions from a possible 900GTO owner

Hi,

A couple "dumb" questions from someone looking and the possibility of
moving from a G11 to a 900GTO:

1) Does the current production run of the 900GTO mount "come with"
counter-weights, or are they "a la cart?" Can't find anything one way
or the other on the AP web site.

2) Is is possible to mate a 900GTO to a standard Losmandy G11 tripod?
I haven't been able to find any discussion of mating them so I assume
that's not possible/feasible?

Thanks!

-Dick Locke




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




Re: More follow-up on attaching TOA 150 to AP900

Eric Baumgartner
 

Niels:

While I cannot show you photos of a whole set-up, I can offer this link,
which might help you visualize things:

<http://www.bttechnologies.com/bt_dp.htm>

BT Technologies machines Losmandy D-style dovetail plates specifically for
the Takahashi clamshell tube rings, including the rings for the TOA-150. If
you scroll down the page, you'll see a description and photo of their
Tak-02dp plate. Mouse over the photo and you'll see a dual-ring system
mounted to the plate. The plate is available in clear or black anodization,
or Takahashi green.

The next photo on the page shows a shorter D-style plate, which, when moused
over, morphs to a dual-clamshell illustration on a Losmandy G11 mount.

Either would work with the Losmandy D-dovetail saddle that AP offers
(DOVELM2), as well as the BT Technologies dovetail saddle, Univ-Sad03,
illustrated at the top of the page.

Hope this helps,

Eric Baumgartner
Redding, CT USA

On 04/01/07 6:03 AM, "N. Foldager" <nf@dadlnet.dk> wrote:


Ray York:

I would recommend going with the Tak plate:
http://www.buytelescopes.com/product.asp?t=&pid=11366&m=

and the Tak rings:
http://www.buytelescopes.com/product.asp?t=&pid=9817&m=

Due to the increased rigidity.
The image of the Tak plate doesn't say me much, and there is no image
of the Tak rings.

I very much appreciate it if someone would show pictures of this
plate, the ring and/or the whole set-up.

Best regards,

Niels Foldager


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



Re: questions from a possible 900GTO owner

Joe Zeglinski
 

Hi,

Everything for an AP900 is extra, to make the price easier to take when
you first see it, I suppose. Would be nice if there were a check box order
sheet of "essential items", when you buy their mounts. After all, you have to
have some counter weights, unless the AP900 is for tour snapshot camera, and
you can't just attach it to a stub at the end of the DEC axle :-)
It's sort of having a sit down meal at a restaurant, and asked if you will be
requiring a plate and cutlery.

I'm going to make an G11 pier converter for myself, as soon as the new
AP900 arrives.
Actually, before I got the unexpected notification, I bought a Losmandy G11
Meade MA tripod adapter, which is just the short tube section at the very top
6 inches or so of the standard G11 pier. My intent was to use it on my
favourite tripod head, instead of the standard Losmandy one. Then, get a
second MA for a permanent G11 pier in the yard. I really like the design of
the Losmandy pier top.

Well, I have looked at all the combinations, and decided that the Meade
Adapter (MA), is still a good accessory, with it's Losmandy "drop-in-slot-and
twist" top for a G11. The way I see it, its is a trivial machining task to
make an AP900 to Losmandy MA, "step down, conversion ring" - at most, about 3
inches tall, with the AP's 6 button "post" screws for the bottom of the AP900.
Then, simply tap 3 holes (3/8-16), for the Losmandy optional mount knob set,
on the 8 inch to 6 inch step down ring, to drop into either the Losmandy
tripod, or into the Losmandy Meade tripod Adapter (MA). That solves a lot of
issues, especially if you don't like the AP portable pier style compared to
the Losmandy tripod.

AP should be selling this "trivial" item - they already sell other
Losmandy dovetails and plates.

Joe

----- Original Message -----
From: "dtlnew" <dtlnew@yahoo.com>
To: <ap-gto@yahoogroups.com>
Sent: Sunday, April 01, 2007 12:03 AM
Subject: [ap-gto] questions from a possible 900GTO owner


Hi,

A couple "dumb" questions from someone looking and the possibility of
moving from a G11 to a 900GTO:

1) Does the current production run of the 900GTO mount "come with"
counter-weights, or are they "a la cart?" Can't find anything one way
or the other on the AP web site.

2) Is is possible to mate a 900GTO to a standard Losmandy G11 tripod?
I haven't been able to find any discussion of mating them so I assume
that's not possible/feasible?

Thanks!

-Dick Locke




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




More follow-up on attaching TOA 150 to AP900

N. Foldager
 

Ray York:

I would recommend going with the Tak plate:
http://www.buytelescopes.com/product.asp?t=&pid=11366&m=

and the Tak rings:
http://www.buytelescopes.com/product.asp?t=&pid=9817&m=

Due to the increased rigidity.
The image of the Tak plate doesn't say me much, and there is no image
of the Tak rings.

I very much appreciate it if someone would show pictures of this
plate, the ring and/or the whole set-up.

Best regards,

Niels Foldager


Re: questions from a possible 900GTO owner

ayiomamitis
 

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

Hi,
Hi Dick,


A couple "dumb" questions from someone looking and the possibility of
moving from a G11 to a 900GTO:

1) Does the current production run of the 900GTO mount "come with"
counter-weights, or are they "a la cart?" Can't find anything one way
or the other on the AP web site.
The base price you see is for the equatorial head and counterweight
bar. The counterweights themselves are extra ... and they come in two
flavours.


2) Is is possible to mate a 900GTO to a standard Losmandy G11 tripod?
I haven't been able to find any discussion of mating them so I assume
that's not possible/feasible?
The Losmandy G11 pier has a diameter of 6" whereas the 900GTO needs an
8" pier. However, the Mach1GTO does indeed need a 6" post which makes
this combination an interesting scenario and which I am looking at for
my Mach1GTO which is due.

Anthony.


Thanks!

-Dick Locke


Re: questions from a possible 900GTO owner

William R. Mattil <wrmattil@...>
 

dtlnew wrote:
Hi,

A couple "dumb" questions from someone looking and the possibility of
moving from a G11 to a 900GTO:

1) Does the current production run of the 900GTO mount "come with"
counter-weights, or are they "a la cart?" Can't find anything one way
or the other on the AP web site.
Ala Carte.

2) Is is possible to mate a 900GTO to a standard Losmandy G11 tripod?
I haven't been able to find any discussion of mating them so I assume
that's not possible/feasible?
Possible with the proper adapter. But that would likely be a custom piece (read as expensive).



Regards

Bill



--

William R. Mattil : http://www.celestial-images.com


questions from a possible 900GTO owner

Dick Locke
 

Hi,

A couple "dumb" questions from someone looking and the possibility of
moving from a G11 to a 900GTO:

1) Does the current production run of the 900GTO mount "come with"
counter-weights, or are they "a la cart?" Can't find anything one way
or the other on the AP web site.

2) Is is possible to mate a 900GTO to a standard Losmandy G11 tripod?
I haven't been able to find any discussion of mating them so I assume
that's not possible/feasible?

Thanks!

-Dick Locke


Re: 16" LX200R on an AP1200

ocular21 <rbissinger@...>
 

I have the 16" LX200R mounted on my AP1200GTO, along with an Optec
filter wheel, an Optec focuser, a SBIG AO-L, and a SBIG ST-10XME. I
use a set of Parallax rings, on the top of which I have a Losmandy
dovetail holding a 90mm guidescope. I also use an 24" AstroPhysics
ribbed plate where I drilled a 2nd set of holes to mount one of the
Parallax rings. Because the 16" LX200R is so tail heavy the Parallax
rings are offset to one end of the ribbed plate, allowing me to
position the tail of the OTA closer to the Dec axis. I still need to
use some pancake weights towards the front of the OTA for proper Dec
balance.

I also found adding the 28" AstroPhysics counterweight shaft
necessary for the additional payload. But the system tracks
extremely well; I can't tell any degradation in performance from when
I had a C14 mounted on it. So, the AP1200 mount will easily carry
the 16" LX200R OTA and accessories.


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

I'm considering mounting a 16" LX200R on my new AP1200. I believe
the
OTA weight is 110 lbs.

By the time accessories etc are added this would be close to the
advertised capacity limit of 140 lbs.

This concerns me and I wonder if anyone can offer any advice as to
whether this would be a suitable match or whether I'd be better
with
a
14" SCT (70 lbs). The scope would be used for visual work only and
housed in an observatory.

Is the extra 2" going to cause more problems than it's worth?

Thanks
Gavin


Re: 16" LX200R on an AP1200

Gavin Bray
 

Thanks Barbara for the reassurance. From what you and Jeff have said
I'm pretty sure I'm going to go with the 16". I just have to hope I
get a good one. :-)

Regards
Gavin

--- In ap-gto@yahoogroups.com, "Barbara Harris" <barbharris1@...>
wrote:

Gavin,
I have a LX200GPS OTA on an AP1200 with a Televue Pronto as a
guidescope permanently mounted in an observatory and it handles
the
weight just fine. I am not sure of the wt. difference between the
LX200 and the LX200R but I would not rely on Meade for that info.
They
really could not give me an accurate wt. of the OTA only (I think
they
quoted 120 lbs.). They are use to the whole setup and usually
will
quote you the OTA and fork arms wt. When I weighed my assembly I
think it was around 80 lbs. for the OTA only. Anyway, the mount
has
no
trouble handling the weight. I have the scope mounted with a
Losmandy
dovetail.

Barbara

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

I'm considering mounting a 16" LX200R on my new AP1200. I
believe
the
OTA weight is 110 lbs.

By the time accessories etc are added this would be close to the
advertised capacity limit of 140 lbs.

This concerns me and I wonder if anyone can offer any advice as
to
whether this would be a suitable match or whether I'd be better
with
a
14" SCT (70 lbs). The scope would be used for visual work only
and
housed in an observatory.

Is the extra 2" going to cause more problems than it's worth?

Thanks
Gavin


Re: 16" LX200R on an AP1200

Barbara Harris <barbharris1@...>
 

Gavin,
I have a LX200GPS OTA on an AP1200 with a Televue Pronto as a
guidescope permanently mounted in an observatory and it handles the
weight just fine. I am not sure of the wt. difference between the
LX200 and the LX200R but I would not rely on Meade for that info.
They
really could not give me an accurate wt. of the OTA only (I think
they
quoted 120 lbs.). They are use to the whole setup and usually will
quote you the OTA and fork arms wt. When I weighed my assembly I
think it was around 80 lbs. for the OTA only. Anyway, the mount has
no
trouble handling the weight. I have the scope mounted with a
Losmandy
dovetail.

Barbara

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

I'm considering mounting a 16" LX200R on my new AP1200. I believe
the
OTA weight is 110 lbs.

By the time accessories etc are added this would be close to the
advertised capacity limit of 140 lbs.

This concerns me and I wonder if anyone can offer any advice as to
whether this would be a suitable match or whether I'd be better
with
a
14" SCT (70 lbs). The scope would be used for visual work only and
housed in an observatory.

Is the extra 2" going to cause more problems than it's worth?

Thanks
Gavin


Re: 16" LX200R on an AP1200

Joe Zeglinski
 

Thanks Jeff,

Excellent. That speaks volumes for Roland's design of the AP1200, and I
will assume of the AP900 as well, which I am fortunate to be soon receiving.
Your comments make the decision I made, MUCH easier on my frown lines.

Joe

----- Original Message -----
From: "Jeff Young" <jey@adobe.com>
To: <ap-gto@yahoogroups.com>
Sent: Friday, March 30, 2007 7:25 PM
Subject: RE: [ap-gto] Re: 16" LX200R on an AP1200


Joe --

I certainly had too much flexure when I was using a Losmandy dovetail to
mount it. (The biggest problem was differential sag between the front
and rear which caused collimation changes.)

I've since switched to Parallax rings on the 15" ribbed plate -- a
combination which is much more rigid. There is still some flexure left,
but I like that: with a star diagonal rotated to different angles I
never can keep directions straight so I get my bearings by nudging the
OTA and seeing which way the view moves -- and I also sometimes jiggle
the OTA to bring out really low contrast objects or details. But all
the flexure is still in the plate/rings -- I have essentially zero
backlash on both axes and the axes themselves don't exhibit any
measurable flex.

-- Jeff.


Re: 16" LX200R on an AP1200

Jeff Young <jey@...>
 

Joe --

I certainly had too much flexure when I was using a Losmandy dovetail to
mount it. (The biggest problem was differential sag between the front
and rear which caused collimation changes.)

I've since switched to Parallax rings on the 15" ribbed plate -- a
combination which is much more rigid. There is still some flexure left,
but I like that: with a star diagonal rotated to different angles I
never can keep directions straight so I get my bearings by nudging the
OTA and seeing which way the view moves -- and I also sometimes jiggle
the OTA to bring out really low contrast objects or details. But all
the flexure is still in the plate/rings -- I have essentially zero
backlash on both axes and the axes themselves don't exhibit any
measurable flex.

-- Jeff.





________________________________

From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] On
Behalf Of Joseph Zeglinski
Sent: Friday, March 30, 2007 10:14 PM
To: ap-gto@yahoogroups.com
Subject: [ap-gto] Re: 16" LX200R on an AP1200



Glad you are in contact, Jeff.

Just a thought - have you tested shaft and dovetail flexure,
which might
increase if you go to an even larger OTA, even if the cradle
bolts don't shear
off, first?

I wonder if taking a circumpolar exposure, by rotating the mount
quickly,
might show elliptical paths, if there is any sign of flexure on
the OTA
attachment.
Perhaps, as a guess, reflecting a laser pointer off the counter
weight shaft,
onto the ceiling or dome, might show the beam angle deflected by
tiny bends of
the shaft.

Joe

----- Original Message -----
From: "Jeff Young" <jey@adobe.com <mailto:jey%40adobe.com> >
To: <ap-gto@yahoogroups.com <mailto:ap-gto%40yahoogroups.com> >
Sent: Friday, March 30, 2007 4:48 PM
Subject: RE: [ap-gto] Re: 16" LX200R on an AP1200

[snip]
> I'm using Parallax rings and the AP 15" ribbed plate, which
likely add
> another 15 lbs. The dovetail, rings and refractor on top are
likely
> good for another 20 lbs. Figure 120 lbs all told. I'm
comfortable
> enough with those weights on it that I'm considering going to
a
> considerably heavier OTA....
>
> -- Jeff.
>
>
>
>


Re: 16" LX200R on an AP1200

Joe Zeglinski
 

Glad you are in contact, Jeff.

Just a thought - have you tested shaft and dovetail flexure, which might
increase if you go to an even larger OTA, even if the cradle bolts don't shear
off, first?

I wonder if taking a circumpolar exposure, by rotating the mount quickly,
might show elliptical paths, if there is any sign of flexure on the OTA
attachment.
Perhaps, as a guess, reflecting a laser pointer off the counter weight shaft,
onto the ceiling or dome, might show the beam angle deflected by tiny bends of
the shaft.

Joe

----- Original Message -----
From: "Jeff Young" <jey@adobe.com>
To: <ap-gto@yahoogroups.com>
Sent: Friday, March 30, 2007 4:48 PM
Subject: RE: [ap-gto] Re: 16" LX200R on an AP1200


[snip]
I'm using Parallax rings and the AP 15" ribbed plate, which likely add
another 15 lbs. The dovetail, rings and refractor on top are likely
good for another 20 lbs. Figure 120 lbs all told. I'm comfortable
enough with those weights on it that I'm considering going to a
considerably heavier OTA....

-- Jeff.




Re: 16" LX200R on an AP1200

Jeff Young <jey@...>
 

"jeybball" and Jeff Young are the same guy.

It's a long story, but I worked for a Unix company back before the whole
world had email, and so everyone used their initials for their email.
Mine are "jey". I first used Yahoo to manage a fantasy basketball with
a friend -- thus "jeybball". Later, it seemed like too much trouble to
create another account....

In any case, Gavin already found me on CloudyNights (where I go by the
somewhat simpler "Jeff Young").

But to answer the question directly, I'd be very much surprised if the
16" LX200R OTA were really 110 lbs. Meade quotes the GPS version at 120
lbs, but that includes the Dec axis trunions and drive system, which you
won't have. In any case, my 16" GPS OTA weighs on the order of 85 lbs
-- I'd expect the R version to be within 10% of that.

I'm using Parallax rings and the AP 15" ribbed plate, which likely add
another 15 lbs. The dovetail, rings and refractor on top are likely
good for another 20 lbs. Figure 120 lbs all told. I'm comfortable
enough with those weights on it that I'm considering going to a
considerably heavier OTA....

-- Jeff.





________________________________

From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] On
Behalf Of Joseph Zeglinski
Sent: Friday, March 30, 2007 4:10 PM
To: ap-gto@yahoogroups.com
Subject: Re: [ap-gto] Re: 16" LX200R on an AP1200



Gavin,

Actually, there is a 16" LX200GPS/FC-100 on an AP1200 mount on a
permanent
pier, in the PHOTOS section of this group (see the LAST image in
the
Miscellaneous folder):

http://tech.ph.groups.yahoo.com/group/ap-gto/photos/view/ede6?b=18
<http://tech.ph.groups.yahoo.com/group/ap-gto/photos/view/ede6?b=18>

You should contact the contributor "JEYBBALL" - I think it is
identical to
your system.

Joe

----- Original Message -----
From: "ebuehrens" <ebuehrens@rcn.com
<mailto:ebuehrens%40rcn.com> >
To: <ap-gto@yahoogroups.com <mailto:ap-gto%40yahoogroups.com> >
Sent: Friday, March 30, 2007 7:34 AM
Subject: [ap-gto] Re: 16" LX200R on an AP1200

> Gavin,
>
> There's a guy named Jeff Young that hangs out on the Astromart
> Equipment forum that has exactly this setup. Not sure he's too
happy
> with the OTA but the mount seems to take the load just fine.
You might
> want to email him.
>
> Eric
>
> --- In ap-gto@yahoogroups.com
<mailto:ap-gto%40yahoogroups.com> , "Gav" <gavbray@...> wrote:
>>
>> I'm considering mounting a 16" LX200R on my new AP1200. I
believe the
>> OTA weight is 110 lbs.
>>
>> By the time accessories etc are added this would be close to
the
>> advertised capacity limit of 140 lbs.
>>
>> This concerns me and I wonder if anyone can offer any advice
as to
>> whether this would be a suitable match or whether I'd be
better with a
>> 14" SCT (70 lbs). The scope would be used for visual work
only and
>> housed in an observatory.
>>
>> Is the extra 2" going to cause more problems than it's worth?
>>
>> Thanks
>> Gavin
>>
>
>
>
>
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>


Re: 16" LX200R on an AP1200

Roland Christen
 

In a message dated 3/30/2007 4:14:08 PM Central Daylight Time,
J.Zeglinski@rogers.com writes:


Perhaps, as a guess, reflecting a laser pointer off the counter weight
shaft,
onto the ceiling or dome, might show the beam angle deflected by tiny bends
of
the shaft.
The counterweight shaft does not rotate on the 900/1200 or Mach1.

Roland Christen


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See what's free at
http://www.aol.com.


Re: 16" LX200R on an AP1200

Joe Zeglinski
 

Gavin,

Actually, there is a 16" LX200GPS/FC-100 on an AP1200 mount on a permanent
pier, in the PHOTOS section of this group (see the LAST image in the
Miscellaneous folder):
http://tech.ph.groups.yahoo.com/group/ap-gto/photos/view/ede6?b=18

You should contact the contributor "JEYBBALL" - I think it is identical to
your system.

Joe

----- Original Message -----
From: "ebuehrens" <ebuehrens@rcn.com>
To: <ap-gto@yahoogroups.com>
Sent: Friday, March 30, 2007 7:34 AM
Subject: [ap-gto] Re: 16" LX200R on an AP1200


Gavin,

There's a guy named Jeff Young that hangs out on the Astromart
Equipment forum that has exactly this setup. Not sure he's too happy
with the OTA but the mount seems to take the load just fine. You might
want to email him.

Eric

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

I'm considering mounting a 16" LX200R on my new AP1200. I believe the
OTA weight is 110 lbs.

By the time accessories etc are added this would be close to the
advertised capacity limit of 140 lbs.

This concerns me and I wonder if anyone can offer any advice as to
whether this would be a suitable match or whether I'd be better with a
14" SCT (70 lbs). The scope would be used for visual work only and
housed in an observatory.

Is the extra 2" going to cause more problems than it's worth?

Thanks
Gavin



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




Re: 16" LX200R on an AP1200

ebuehrens
 

Gavin,

There's a guy named Jeff Young that hangs out on the Astromart
Equipment forum that has exactly this setup. Not sure he's too happy
with the OTA but the mount seems to take the load just fine. You might
want to email him.

Eric

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

I'm considering mounting a 16" LX200R on my new AP1200. I believe the
OTA weight is 110 lbs.

By the time accessories etc are added this would be close to the
advertised capacity limit of 140 lbs.

This concerns me and I wonder if anyone can offer any advice as to
whether this would be a suitable match or whether I'd be better with a
14" SCT (70 lbs). The scope would be used for visual work only and
housed in an observatory.

Is the extra 2" going to cause more problems than it's worth?

Thanks
Gavin