Date   

Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Michael Hambrick <mike.hambrick@...>
 

Point well taken Chris.

I recently "loaned for as long as they needed it" my mid-power model rocket launch control system to a local school for a project they were working on with the promise that I would help them when they got ready to launch their rocket. They never got the chance to launch their rocket, and I am still trying to figure out how to get my gear back.

I would have already found a deserving recipient to give or sell my old 800 mount to, but since I kept the 8-inch portable pier to use with my 1100 mount, I have been reluctant to give the old mount to someone who will then be forced to spend another $800 to $1000 to get a pier or tripod so that they can use it. I will probably end up selling it on Astro-Mart or Cloudy Nights.


Best Regards

Michael Hambrick
ARLANXEO
TSR Global Manufacturing Support
PO Box 2000
Orange, TX 77631-2000
Phone: +1 (409) 882-2799
email: mike.hambrick@...


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Roland Christen
 

We will consider it. I am exploring some things that might work for our present mount. It would remove about 12.5 lb part from the mount head which would then be brought back together in the field setup.

Rolando



-----Original Message-----
From: Stelios via groups.io <stelios_t@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 3:32 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

You ask if it would be worthwhile to split the Mach2 into two parts...

For me, absolutely. The main reason that (then) I chose the Mach1 over the MyT (despite my love of the red color :)) was the 28lb vs 35lb head, and the ability to break the Mach1 in two pieces--which, thankfully, I have not so far needed to use. 

When I heard about the Mach2 with encoders, I was thinking I *might* sell my Mach1 to upgrade--until I found out the weight which (for me) would be prohibitive, as I am mobile and will remain so for the foreseeable future. 

As you said, the AP crowd is graying. Muscles are dwindling, knees are twitching, backs are creaking. All while encroaching light pollution is forcing most to travel in order to image. 

Lightweight or modular should be the holy grail for mounts. 


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Joe Zeglinski
 

Very well said, Chris,
 
    I never thought of it, but you are right-on.
Besides, an excellent scope and mount,  like those from AP, will eventually pass from hand to hand – as teachers retire, or the kids move on to more advanced equipment as it comes along.
 
    In the same vein, wouldn’t it be grand if Scouting International, established a special ASTRONOMY Badge, rather than something just relating to “outdoors and camping”. Maybe in the future they might concentrate less on finding their way through the forest – probably just streets, when we run out of woods -  than on travelling on pathways through the skies, as man’s journey inevitably reaches even farther afield, for our next generations.
 
Joe Z.
 

From: Christopher Erickson
Sent: Thursday, April 23, 2020 5:23 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
 
Personally, I believe that we should... 
 
NEVER GIVE TELESCOPES TO SCHOOLS.
 
GIVE TELESCOPES TO TEACHERS OR STUDENTS INSTEAD.
 
If you give it to a school, it inevitably ends up being controlled by school middle-management bureaucrats and spends the rest of its life in the back of a crowded supply closet, never to be seen by kids ever again. The tax write-off for giving it to a school will end up being next-to-nothing anyway.
 
If you give it to a dedicated teacher, that person is much more likely to learn how to use it properly and take it with them throughout their teaching career.
 
If you give it to a dedicated student, that person's life will be changed forever.
 
If it is a big, expensive, complicated telescope, consider selling it to another astro-nut who will love it, or work to establish an NPO in a local community to operate it, put it in an observatory, and perform outreach.
 
 
On Thu, Apr 23, 2020 at 8:27 AM Michael Hambrick via groups.io <mike.hambrick@...> wrote:
That is a great suggestion. I have also thought about donating it to a local school. Only bad thing is I kept the pier to use with my 1100 mount.


Best Regards

Michael Hambrick
ARLANXEO
TSR Global Manufacturing Support
PO Box 2000
Orange, TX 77631-2000
Phone: +1 (409) 882-2799
email: mike.hambrick@...


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

David
 

I would love it if you made another smaller mount.  Hopefully one as accurate as the Mach1.  I picked up a small iOptron CEM40 as a little grab and go mount that complements my 1100.  Its so light and easy to setup, its a pleasure.  It’ll easily carry 25 lbs for imaging.  I got this because there was nothing from AP in this size, but I sure wish there was.  Please make another small one…maybe a little brother to the Mach1.  Dont need encoders on something that small, just something as accurate as the Mach1 would be great!
Plus, you now have a price point hole where the Mach1 was before.

David



On Apr 23, 2020, at 3:55 PM, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:


The MACH1 GTO is 31 lbs
Interesting. I just weighed the two components of the Mach1. Ra weighs 17.20 lb. Dec weighs 11.95 lb. for a total of 29.15lb. That's without the dovetail plate which can weigh +- depending if it's the short one or the long Losmandy one. That's about a pound and half more than the 1100 RA axis alone. Hardly a back breaker.

I also weighed an older 400 GTO mount which came in at 19.5 lb. We had people throwing heavy long 6" refractors on it, so that's why we replaced it with the larger Mach1. Maybe we need to go back to making a newer version of the 400 for use with more modern short focus imaging refractors and the smaller (8 inch) SCTs.

Rolando


-----Original Message-----
From: Ken M <kmurfitt@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 2:13 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

If I may say so - when I weigh my MACH1 GTO and 1100 RA (no encoders) both 2018 models-
The MACH1 GTO is 31 lbs
The 1100 GTO RA is 27lbs
This is why I like the 1100 so much - it's actually a bit easier to set up (less bulky and lighter) though it takes a bit longer to do so due to the DEC axis (which is even lighter than RA)


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Joe Zeglinski
 

In that regard – AP mount’s weight ...
 
    I always wondered how much more it might cost for a Titanium , or similar lighter metal mount. QUESTAR for example put out a special “limited edition” Questar-LW-Titanium-7  (LW, i.e.  Light Weight) - but only the Titanium OTA parts replacing the original decades-old stainless steel. The Q-mount itself was not changed. In such case, I didn’t see an advantage ot the elder user, where the mount is the heavy-lift components. Likewise, if it were possible, wonder what a Titanium AP-1600 would be like.
 
    However, having had to dismantle an AP-900, I was nevertheless impressed  and appreciative, in the great lengths Rolando  has gone to “sculpt-out” unnecessary aluminum – even in areas hidden deep inside, away from our eyes -  just to lighten our load.
 
    A lot of us are now “of a certain age”, even Rolando, (I presume), so the less we have to haul or to lift, the better. Just hope Elon Musk’s new “orbital toys”, causing even more light pollution from higher orbit,  don’t put a practical  end to our imaging hobby,  making such prized AP telescopes and  wonderful new AP mounts obsolete before their time.
 
Joe
 

From: Stelios via groups.io
Sent: Thursday, April 23, 2020 4:32 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
 
You ask if it would be worthwhile to split the Mach2 into two parts...
 
For me, absolutely. The main reason that (then) I chose the Mach1 over the MyT (despite my love of the red color :)) was the 28lb vs 35lb head, and the ability to break the Mach1 in two pieces--which, thankfully, I have not so far needed to use.
 
When I heard about the Mach2 with encoders, I was thinking I *might* sell my Mach1 to upgrade--until I found out the weight which (for me) would be prohibitive, as I am mobile and will remain so for the foreseeable future.
 
As you said, the AP crowd is graying. Muscles are dwindling, knees are twitching, backs are creaking. All while encroaching light pollution is forcing most to travel in order to image.
 
Lightweight or modular should be the holy grail for mounts.


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Christopher Erickson
 

YES!

I would LOVE a lightweight Half-Mach to perfectly-match my Stowaway when travelling for eclipses.

Use high-tech materials like titanium and/or carbon fiber to get the weight down as much as possible without losing rigidity. 

Bulk wouldn't be as important as weight.

Round or triangular holes to reduce weight in places where the missing material wouldn't effect rigidity.

Splitting in half for transport and assembly would be nice too.

Scale it to be able to handle a Stowaway, a double-stack Coronado 90 and a full-frame dSLR.

Or maybe have a standard aluminum version and a much-more-expensive-and-much-lighter titanium version.

Hopefully that would cover all of the bases.

I would be very happy to spend serious coin on a titanium Half-Mach.


On Thu, Apr 23, 2020 at 9:55 AM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

The MACH1 GTO is 31 lbs
Interesting. I just weighed the two components of the Mach1. Ra weighs 17.20 lb. Dec weighs 11.95 lb. for a total of 29.15lb. That's without the dovetail plate which can weigh +- depending if it's the short one or the long Losmandy one. That's about a pound and half more than the 1100 RA axis alone. Hardly a back breaker.

I also weighed an older 400 GTO mount which came in at 19.5 lb. We had people throwing heavy long 6" refractors on it, so that's why we replaced it with the larger Mach1. Maybe we need to go back to making a newer version of the 400 for use with more modern short focus imaging refractors and the smaller (8 inch) SCTs.

Rolando


-----Original Message-----
From: Ken M <kmurfitt@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 2:13 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

If I may say so - when I weigh my MACH1 GTO and 1100 RA (no encoders) both 2018 models-
The MACH1 GTO is 31 lbs
The 1100 GTO RA is 27lbs
This is why I like the 1100 so much - it's actually a bit easier to set up (less bulky and lighter) though it takes a bit longer to do so due to the DEC axis (which is even lighter than RA)


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Christopher Erickson
 

Personally, I believe that we should... 

NEVER GIVE TELESCOPES TO SCHOOLS.

GIVE TELESCOPES TO TEACHERS OR STUDENTS INSTEAD.

If you give it to a school, it inevitably ends up being controlled by school middle-management bureaucrats and spends the rest of its life in the back of a crowded supply closet, never to be seen by kids ever again. The tax write-off for giving it to a school will end up being next-to-nothing anyway.

If you give it to a dedicated teacher, that person is much more likely to learn how to use it properly and take it with them throughout their teaching career.

If you give it to a dedicated student, that person's life will be changed forever.

If it is a big, expensive, complicated telescope, consider selling it to another astro-nut who will love it, or work to establish an NPO in a local community to operate it, put it in an observatory, and perform outreach.


On Thu, Apr 23, 2020 at 8:27 AM Michael Hambrick via groups.io <mike.hambrick=arlanxeo.com@groups.io> wrote:
That is a great suggestion. I have also thought about donating it to a local school. Only bad thing is I kept the pier to use with my 1100 mount.


Best Regards

Michael Hambrick
ARLANXEO
TSR Global Manufacturing Support
PO Box 2000
Orange, TX 77631-2000
Phone: +1 (409) 882-2799
email: mike.hambrick@...


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Stelios
 

You ask if it would be worthwhile to split the Mach2 into two parts...

For me, absolutely. The main reason that (then) I chose the Mach1 over the MyT (despite my love of the red color :)) was the 28lb vs 35lb head, and the ability to break the Mach1 in two pieces--which, thankfully, I have not so far needed to use. 

When I heard about the Mach2 with encoders, I was thinking I *might* sell my Mach1 to upgrade--until I found out the weight which (for me) would be prohibitive, as I am mobile and will remain so for the foreseeable future. 

As you said, the AP crowd is graying. Muscles are dwindling, knees are twitching, backs are creaking. All while encroaching light pollution is forcing most to travel in order to image. 

Lightweight or modular should be the holy grail for mounts. 


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Bill Long
 

I guess it would come down to what the weight increase would be. Perhaps its an acceptable tradeoff? 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Thursday, April 23, 2020 1:01 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
 
As soon as you add encoders the weight goes up again.
Single encoder for RA to eliminate the periodic error could be doable. But then you lose the ability to always know where the scope is pointing in Dec. Kind of a semi-solution.

Rolando

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 2:56 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

Need the AP400AE to come to light. Nice lightweight hyper-portable mount with encoders. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Thursday, April 23, 2020 12:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
 

The MACH1 GTO is 31 lbs
Interesting. I just weighed the two components of the Mach1. Ra weighs 17.20 lb. Dec weighs 11.95 lb. for a total of 29.15lb. That's without the dovetail plate which can weigh +- depending if it's the short one or the long Losmandy one. That's about a pound and half more than the 1100 RA axis alone. Hardly a back breaker.

I also weighed an older 400 GTO mount which came in at 19.5 lb. We had people throwing heavy long 6" refractors on it, so that's why we replaced it with the larger Mach1. Maybe we need to go back to making a newer version of the 400 for use with more modern short focus imaging refractors and the smaller (8 inch) SCTs.

Rolando


-----Original Message-----
From: Ken M <kmurfitt@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 2:13 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

If I may say so - when I weigh my MACH1 GTO and 1100 RA (no encoders) both 2018 models-
The MACH1 GTO is 31 lbs
The 1100 GTO RA is 27lbs
This is why I like the 1100 so much - it's actually a bit easier to set up (less bulky and lighter) though it takes a bit longer to do so due to the DEC axis (which is even lighter than RA)


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Roland Christen
 

As soon as you add encoders the weight goes up again.
Single encoder for RA to eliminate the periodic error could be doable. But then you lose the ability to always know where the scope is pointing in Dec. Kind of a semi-solution.

Rolando

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 2:56 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

Need the AP400AE to come to light. Nice lightweight hyper-portable mount with encoders. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Thursday, April 23, 2020 12:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
 

The MACH1 GTO is 31 lbs
Interesting. I just weighed the two components of the Mach1. Ra weighs 17.20 lb. Dec weighs 11.95 lb. for a total of 29.15lb. That's without the dovetail plate which can weigh +- depending if it's the short one or the long Losmandy one. That's about a pound and half more than the 1100 RA axis alone. Hardly a back breaker.

I also weighed an older 400 GTO mount which came in at 19.5 lb. We had people throwing heavy long 6" refractors on it, so that's why we replaced it with the larger Mach1. Maybe we need to go back to making a newer version of the 400 for use with more modern short focus imaging refractors and the smaller (8 inch) SCTs.

Rolando


-----Original Message-----
From: Ken M <kmurfitt@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 2:13 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

If I may say so - when I weigh my MACH1 GTO and 1100 RA (no encoders) both 2018 models-
The MACH1 GTO is 31 lbs
The 1100 GTO RA is 27lbs
This is why I like the 1100 so much - it's actually a bit easier to set up (less bulky and lighter) though it takes a bit longer to do so due to the DEC axis (which is even lighter than RA)


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Bill Long
 

Need the AP400AE to come to light. Nice lightweight hyper-portable mount with encoders. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Thursday, April 23, 2020 12:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
 

The MACH1 GTO is 31 lbs
Interesting. I just weighed the two components of the Mach1. Ra weighs 17.20 lb. Dec weighs 11.95 lb. for a total of 29.15lb. That's without the dovetail plate which can weigh +- depending if it's the short one or the long Losmandy one. That's about a pound and half more than the 1100 RA axis alone. Hardly a back breaker.

I also weighed an older 400 GTO mount which came in at 19.5 lb. We had people throwing heavy long 6" refractors on it, so that's why we replaced it with the larger Mach1. Maybe we need to go back to making a newer version of the 400 for use with more modern short focus imaging refractors and the smaller (8 inch) SCTs.

Rolando


-----Original Message-----
From: Ken M <kmurfitt@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 2:13 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

If I may say so - when I weigh my MACH1 GTO and 1100 RA (no encoders) both 2018 models-
The MACH1 GTO is 31 lbs
The 1100 GTO RA is 27lbs
This is why I like the 1100 so much - it's actually a bit easier to set up (less bulky and lighter) though it takes a bit longer to do so due to the DEC axis (which is even lighter than RA)


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Roland Christen
 


The MACH1 GTO is 31 lbs
Interesting. I just weighed the two components of the Mach1. Ra weighs 17.20 lb. Dec weighs 11.95 lb. for a total of 29.15lb. That's without the dovetail plate which can weigh +- depending if it's the short one or the long Losmandy one. That's about a pound and half more than the 1100 RA axis alone. Hardly a back breaker.

I also weighed an older 400 GTO mount which came in at 19.5 lb. We had people throwing heavy long 6" refractors on it, so that's why we replaced it with the larger Mach1. Maybe we need to go back to making a newer version of the 400 for use with more modern short focus imaging refractors and the smaller (8 inch) SCTs.

Rolando


-----Original Message-----
From: Ken M <kmurfitt@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 2:13 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

If I may say so - when I weigh my MACH1 GTO and 1100 RA (no encoders) both 2018 models-
The MACH1 GTO is 31 lbs
The 1100 GTO RA is 27lbs
This is why I like the 1100 so much - it's actually a bit easier to set up (less bulky and lighter) though it takes a bit longer to do so due to the DEC axis (which is even lighter than RA)


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Robert Chozick
 

I have a 900 and that is only 22 pounds. Maybe the 1100 is too heavy also but 42 for the Mach 2 is definitely too heavy.   I could manage the Mach 1 weight but much prefer the single axis 900 weight. 

Robert 


On Apr 23, 2020, at 1:39 PM, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:


The Mach1 was the same weight as the RA axis of the 1100 mount ~ 28 lb. So why do you think the 1100 was much more portable than the Mach1?

If we could somehow split the Mach2 so that the heaviest part is less than 30lb, is that worthwhile?

Rolando



-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 1:25 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

No stated limit. Whatever falls somewhere in between the two items.  I generally do not ever pick up anything heavy. My back is not great.   

Robert 


On Apr 23, 2020, at 1:18 PM, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:


What's the max weight you would carry?

Rolando



-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 1:13 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

I have a 900 and I think the ability to split the axis for lower weight to carry makes a 900 or 1100 much more portable than the Mach 1 or 2. One of the reasons I changed from the Mach 1 to my 900 was because the Mach 1 was too heavy for me to carry.   I wish the Mach 2 was made with a split axis. For that reason I could never own a Mach 2. 

Robert 


On Apr 23, 2020, at 12:41 PM, Michael Hambrick via groups.io <mike.hambrick@...> wrote:

Thanks Bill. I do love my 1100 mount, and will likely never sell it.

I had a similar dilemma a couple years ago when I posed a question to George whether to get a better mount (I was using an A-P 800 at the time), or to get a better camera. He advised me to sell my 800 mount and get the 1100. That was very good advice and I have never regretted the decision to get the mount.

As you mentioned in your previous post, it often turns out that the financial controller releases more funds later on. This is exactly what happened before. I bought the 1100GTO mount, and then about a year later she let me upgrade my camera.

Isn't it funny how most of the financial controllers are female ? I know that at least for my case I would probably be broke if I were the financial controller :>)

I still have the old 800 mount that I need to figure out what I am going to do with it.


Best Regards

Michael Hambrick
ARLANXEO
TSR Global Manufacturing Support
PO Box 2000
Orange, TX 77631-2000
Phone: +1 (409) 882-2799
email: mike.hambrick@...




From:        "Bill Long" <bill@...>
To:        "main@ap-gto.groups.io" <main@ap-gto.groups.io>
Date:        2020-04-23 12:25 PM
Subject:        Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
Sent by:        main@ap-gto.groups.io




Do not sell the 1100! It is the best mount A-P makes for all around use IMHO. VERY portable, excellent and spacious cabling system, support for encoders, high weight capacity, and the list just goes on and on.




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of dvjbaja <jpgleasonid@...>
Sent:
Thursday, April 23, 2020 10:22 AM
To:
main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject:
Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

 
Guess I'm really odd.  In over 40 years of imaging, I've never needed a mount with absolute encoders and I have had a wee bit of success with my images.  Always go for the gold!  The Telescope!  Sell your 1100, get the Mach 2.  Problem solved. In fact, that's my decision. I have a new 1100 but if the Mach 2 has the load bearing capability as described, it's smaller size would make life a little easier.    ;-)  

J. Gleason.  

On Thu, Apr 23, 2020 at 10:12 AM Brian Valente <bvalente@...> wrote:
I guess i am the odd one out - i would pick the encoders

you have some great scopes there, time to put them to even better use!

On Thu, Apr 23, 2020 at 9:34 AM M Hambrick <mhambrick563@...> wrote:
I am somewhere on the waiting list for one of the 92 mm Stowaway refractors, and I currently own an 1100GTO mount without absolute encoders. Someday, lady luck may finally shine her light on me and I will get notified that there will be a Stowaway available for me to order. I am also seriously thinking about upgrading my 1100 mount with the absolute encoders. The financial controller at my house tells me that I have to pick between the scope or the mount upgrade. I would be interested to hear comments from the other members which they would choose. I do almost exclusively imaging, and I already own two nice refractors; a recently upgraded Astro-Physics 180EDT, and a Tele-Vue NP101is. Choices. Choices



Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Bill Long
 

This is great news that there will be more Stowaways! :) 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Thursday, April 23, 2020 10:35 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
 
Go for the encoders.

The 92's will be more and more available as time goes on. I plan another run after #3 is finished (unless the virus gets me).

Rolando



-----Original Message-----
From: M Hambrick <mhambrick563@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 11:34 am
Subject: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

I am somewhere on the waiting list for one of the 92 mm Stowaway refractors, and I currently own an 1100GTO mount without absolute encoders. Someday, lady luck may finally shine her light on me and I will get notified that there will be a Stowaway available for me to order. I am also seriously thinking about upgrading my 1100 mount with the absolute encoders. The financial controller at my house tells me that I have to pick between the scope or the mount upgrade. I would be interested to hear comments from the other members which they would choose. I do almost exclusively imaging, and I already own two nice refractors; a recently upgraded Astro-Physics 180EDT, and a Tele-Vue NP101is. Choices. Choices


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Ken Murfitt
 

If I may say so - when I weigh my MACH1 GTO and 1100 RA (no encoders) both 2018 models-

The MACH1 GTO is 31 lbs

The 1100 GTO RA is 27lbs

This is why I like the 1100 so much - it's actually a bit easier to set up (less bulky and lighter) though it takes a bit longer to do so due to the DEC axis (which is even lighter than RA)


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Bill Long
 

The Mach 1 is very portable. :) 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Thursday, April 23, 2020 11:39 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
 
The Mach1 was the same weight as the RA axis of the 1100 mount ~ 28 lb. So why do you think the 1100 was much more portable than the Mach1?

If we could somehow split the Mach2 so that the heaviest part is less than 30lb, is that worthwhile?

Rolando



-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 1:25 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

No stated limit. Whatever falls somewhere in between the two items.  I generally do not ever pick up anything heavy. My back is not great.   

Robert 


On Apr 23, 2020, at 1:18 PM, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:


What's the max weight you would carry?

Rolando



-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 1:13 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

I have a 900 and I think the ability to split the axis for lower weight to carry makes a 900 or 1100 much more portable than the Mach 1 or 2. One of the reasons I changed from the Mach 1 to my 900 was because the Mach 1 was too heavy for me to carry.   I wish the Mach 2 was made with a split axis. For that reason I could never own a Mach 2. 

Robert 


On Apr 23, 2020, at 12:41 PM, Michael Hambrick via groups.io <mike.hambrick@...> wrote:

Thanks Bill. I do love my 1100 mount, and will likely never sell it.

I had a similar dilemma a couple years ago when I posed a question to George whether to get a better mount (I was using an A-P 800 at the time), or to get a better camera. He advised me to sell my 800 mount and get the 1100. That was very good advice and I have never regretted the decision to get the mount.

As you mentioned in your previous post, it often turns out that the financial controller releases more funds later on. This is exactly what happened before. I bought the 1100GTO mount, and then about a year later she let me upgrade my camera.

Isn't it funny how most of the financial controllers are female ? I know that at least for my case I would probably be broke if I were the financial controller :>)

I still have the old 800 mount that I need to figure out what I am going to do with it.


Best Regards

Michael Hambrick
ARLANXEO
TSR Global Manufacturing Support
PO Box 2000
Orange, TX 77631-2000
Phone: +1 (409) 882-2799
email: mike.hambrick@...




From:        "Bill Long" <bill@...>
To:        "main@ap-gto.groups.io" <main@ap-gto.groups.io>
Date:        2020-04-23 12:25 PM
Subject:        Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
Sent by:        main@ap-gto.groups.io




Do not sell the 1100! It is the best mount A-P makes for all around use IMHO. VERY portable, excellent and spacious cabling system, support for encoders, high weight capacity, and the list just goes on and on.




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of dvjbaja <jpgleasonid@...>
Sent:
Thursday, April 23, 2020 10:22 AM
To:
main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject:
Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

 
Guess I'm really odd.  In over 40 years of imaging, I've never needed a mount with absolute encoders and I have had a wee bit of success with my images.  Always go for the gold!  The Telescope!  Sell your 1100, get the Mach 2.  Problem solved. In fact, that's my decision. I have a new 1100 but if the Mach 2 has the load bearing capability as described, it's smaller size would make life a little easier.    ;-)  

J. Gleason.  

On Thu, Apr 23, 2020 at 10:12 AM Brian Valente <bvalente@...> wrote:
I guess i am the odd one out - i would pick the encoders

you have some great scopes there, time to put them to even better use!

On Thu, Apr 23, 2020 at 9:34 AM M Hambrick <mhambrick563@...> wrote:
I am somewhere on the waiting list for one of the 92 mm Stowaway refractors, and I currently own an 1100GTO mount without absolute encoders. Someday, lady luck may finally shine her light on me and I will get notified that there will be a Stowaway available for me to order. I am also seriously thinking about upgrading my 1100 mount with the absolute encoders. The financial controller at my house tells me that I have to pick between the scope or the mount upgrade. I would be interested to hear comments from the other members which they would choose. I do almost exclusively imaging, and I already own two nice refractors; a recently upgraded Astro-Physics 180EDT, and a Tele-Vue NP101is. Choices. Choices



Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Roland Christen
 

School is maybe a bad idea. Teachers don't stay after school in the dark. It probably won't be used.

Rolando

-----Original Message-----
From: Michael Hambrick via groups.io <mike.hambrick@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 1:27 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

That is a great suggestion. I have also thought about donating it to a local school. Only bad thing is I kept the pier to use with my 1100 mount.


Best Regards

Michael Hambrick
ARLANXEO
TSR Global Manufacturing Support
PO Box 2000
Orange, TX 77631-2000
Phone: +1 (409) 882-2799
email: mike.hambrick@...


Re: AP 1600 minimum move/MAXIM?

Eric Dreher
 

Thank you, Roland.  I will be disabling DEC Comp this evening.

Eric


Re: Which to Choose; Absolute Encoders or 92 mm Stowaway

Roland Christen
 

The Mach1 was the same weight as the RA axis of the 1100 mount ~ 28 lb. So why do you think the 1100 was much more portable than the Mach1?

If we could somehow split the Mach2 so that the heaviest part is less than 30lb, is that worthwhile?

Rolando



-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 1:25 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

No stated limit. Whatever falls somewhere in between the two items.  I generally do not ever pick up anything heavy. My back is not great.   

Robert 


On Apr 23, 2020, at 1:18 PM, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:


What's the max weight you would carry?

Rolando



-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 1:13 pm
Subject: Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

I have a 900 and I think the ability to split the axis for lower weight to carry makes a 900 or 1100 much more portable than the Mach 1 or 2. One of the reasons I changed from the Mach 1 to my 900 was because the Mach 1 was too heavy for me to carry.   I wish the Mach 2 was made with a split axis. For that reason I could never own a Mach 2. 

Robert 


On Apr 23, 2020, at 12:41 PM, Michael Hambrick via groups.io <mike.hambrick@...> wrote:

Thanks Bill. I do love my 1100 mount, and will likely never sell it.

I had a similar dilemma a couple years ago when I posed a question to George whether to get a better mount (I was using an A-P 800 at the time), or to get a better camera. He advised me to sell my 800 mount and get the 1100. That was very good advice and I have never regretted the decision to get the mount.

As you mentioned in your previous post, it often turns out that the financial controller releases more funds later on. This is exactly what happened before. I bought the 1100GTO mount, and then about a year later she let me upgrade my camera.

Isn't it funny how most of the financial controllers are female ? I know that at least for my case I would probably be broke if I were the financial controller :>)

I still have the old 800 mount that I need to figure out what I am going to do with it.


Best Regards

Michael Hambrick
ARLANXEO
TSR Global Manufacturing Support
PO Box 2000
Orange, TX 77631-2000
Phone: +1 (409) 882-2799
email: mike.hambrick@...




From:        "Bill Long" <bill@...>
To:        "main@ap-gto.groups.io" <main@ap-gto.groups.io>
Date:        2020-04-23 12:25 PM
Subject:        Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway
Sent by:        main@ap-gto.groups.io




Do not sell the 1100! It is the best mount A-P makes for all around use IMHO. VERY portable, excellent and spacious cabling system, support for encoders, high weight capacity, and the list just goes on and on.




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of dvjbaja <jpgleasonid@...>
Sent:
Thursday, April 23, 2020 10:22 AM
To:
main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject:
Re: [ap-gto] Which to Choose; Absolute Encoders or 92 mm Stowaway

 
Guess I'm really odd.  In over 40 years of imaging, I've never needed a mount with absolute encoders and I have had a wee bit of success with my images.  Always go for the gold!  The Telescope!  Sell your 1100, get the Mach 2.  Problem solved. In fact, that's my decision. I have a new 1100 but if the Mach 2 has the load bearing capability as described, it's smaller size would make life a little easier.    ;-)  

J. Gleason.  

On Thu, Apr 23, 2020 at 10:12 AM Brian Valente <bvalente@...> wrote:
I guess i am the odd one out - i would pick the encoders

you have some great scopes there, time to put them to even better use!

On Thu, Apr 23, 2020 at 9:34 AM M Hambrick <mhambrick563@...> wrote:
I am somewhere on the waiting list for one of the 92 mm Stowaway refractors, and I currently own an 1100GTO mount without absolute encoders. Someday, lady luck may finally shine her light on me and I will get notified that there will be a Stowaway available for me to order. I am also seriously thinking about upgrading my 1100 mount with the absolute encoders. The financial controller at my house tells me that I have to pick between the scope or the mount upgrade. I would be interested to hear comments from the other members which they would choose. I do almost exclusively imaging, and I already own two nice refractors; a recently upgraded Astro-Physics 180EDT, and a Tele-Vue NP101is. Choices. Choices



Re: AP 1600 minimum move/MAXIM?

Roland Christen
 

I never found Dec compensation to help in guiding. As the scope points further north the RA guide command is increased to compensate for the cosine of the Dec angle. But it is really not a good idea. Theoretically if you get to the pole, the cosine of the angle is zero and the amount of RA compensation is infinite. At that point the amount of motion sent to the mount would be infinite (error/0 = infinite). Even at 60 degrees Dec the error sent to the mount in Ra will be twice what was measured by the guide software. The errors produced by RA as you get further north toward the pole actually decrease anyway so there is no need to boost the response to the mount via the cosine multiplier.

Rolando



-----Original Message-----
From: Eric Dreher <ericpdreher@...>
To: main <main@ap-gto.groups.io>
Sent: Thu, Apr 23, 2020 1:19 pm
Subject: Re: [ap-gto] AP 1600 minimum move/MAXIM?

On that subject, Roland would you also disable Dec Compensation for guiding in PHD2 for a Mach1GTO as well?  To be clear, I am not referring to backlash compensation which I don't use.

Thank you.

Eric

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