Date   

Re: Slide Rules and Slipsticks - in the 1960's B.C. - i.e. (Before Computers)

Don Anderson
 

Yes Joe
anyone under 50 (probably 60) has no idea what were talking about. Think about the things that were built ie Hoover Dam Titanic etc that were all designed using hand calculations and slide rules. What most people don't realize about slide rules was one had to have a good idea what the final answer was while doing the calcs in order to carry the decimal point through the calculation process.

Don Anderson


On Friday, March 12, 2021, 10:28:54 a.m. MST, Joe Zeglinski <j.zeglinski@...> wrote:


Don
 
    Love it – dem’ was the days of real computing, unlimited memory, and engineering hard drive.
Yours looks like the famous, highly desired ...  K & E Log-Log-DeciTrig-Duplex  “slip-stick”. Engineers weren’t really entitled to own one of those, unless they could say that quickly,  with a drink in their hand.
 
    Way cool Pickett man myself – its case,  almost like having it slip into  “Corinthian leather”, but probably just cowhide :-)
 
    K&E rare Bamboo style was fine ... but Pickett’s unique engineering design with its specially chosen Green spectral colour, for easy visibility with bleary eyes when cramming  in the middle of the night, Magnesium alloy with tiny ball bearings at the slide’s ends for high speed computing – engineering heaven. Works on both east and west side of its cursor,  easily finds home position on reboot, even works inverted for the log-log and exponential functions ... and BEST of all ...  never needs  AeroShell-33 relubrication :-)
 
    However, my Radio Astronomy engineering prof, used his Abacus, to prove I didn’t need to always run his 3C-273 strip chart data through the PDP-11. I think his was an 8-Bead, (later called a Byte),  “flip-stick” calculator.
 
Joe Z.
 
 
From: Don Anderson via groups.io
Sent: Friday, March 12, 2021 11:17 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600
 
You mean like this?
 
Don Anderson
 
On Friday, March 12, 2021, 07:57:25 a.m. MST, George <george@...> wrote:
 
Don,

 They were only cool if they were full.   <G>    …but real cool was the slide rule slung from your belt in its case!    Talk about a chick magnet…ah, the old days!

 Regards,

 George

 George Whitney

Astro-Physics, Inc.

 


Slide Rules and Slipsticks - in the 1960's B.C. - i.e. (Before Computers)

Joe Zeglinski
 

Don
 
    Love it – dem’ was the days of real computing, unlimited memory, and engineering hard drive.
Yours looks like the famous, highly desired ...  K & E Log-Log-DeciTrig-Duplex  “slip-stick”. Engineers weren’t really entitled to own one of those, unless they could say that quickly,  with a drink in their hand.
 
    Way cool Pickett man myself – its case,  almost like having it slip into  “Corinthian leather”, but probably just cowhide :-)
 
    K&E rare Bamboo style was fine ... but Pickett’s unique engineering design with its specially chosen Green spectral colour, for easy visibility with bleary eyes when cramming  in the middle of the night, Magnesium alloy with tiny ball bearings at the slide’s ends for high speed computing – engineering heaven. Works on both east and west side of its cursor,  easily finds home position on reboot, even works inverted for the log-log and exponential functions ... and BEST of all ...  never needs  AeroShell-33 relubrication :-)
 
    However, my Radio Astronomy engineering prof, used his Abacus, to prove I didn’t need to always run his 3C-273 strip chart data through the PDP-11. I think his was an 8-Bead, (later called a Byte),  “flip-stick” calculator.
 
Joe Z.
 
 

From: Don Anderson via groups.io
Sent: Friday, March 12, 2021 11:17 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600
 
You mean like this?
 
Don Anderson
 
On Friday, March 12, 2021, 07:57:25 a.m. MST, George <george@...> wrote:
 
Don,

 They were only cool if they were full.   <G>    …but real cool was the slide rule slung from your belt in its case!    Talk about a chick magnet…ah, the old days!

 Regards,

 George

 George Whitney

Astro-Physics, Inc.

 


Re: Quick Release Gearbox Modification for Older AP1600

Don Anderson
 

Yes the good old days when one had lots of hair with color!Emoji

Don Anderson


On Friday, March 12, 2021, 09:32:20 a.m. MST, George <george@...> wrote:


Don,

 

<G>   I am VERY impressed.    Oh the memories…just like the one that I had.    Sigh…

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Don Anderson via groups.io
Sent: Friday, March 12, 2021 10:18 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

You mean like this?

 

Don Anderson

 

 

On Friday, March 12, 2021, 07:57:25 a.m. MST, George <george@...> wrote:

 

 

Don,

 

They were only cool if they were full.   <G>    …but real cool was the slide rule slung from your belt in its case!    Talk about a chick magnet…ah, the old days!

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Don Anderson via groups.io
Sent: Thursday, March 11, 2021 6:13 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Pen protectors! Wow that goes back a long ways. i used to wear one every day when I was a TV Technician! Back then I thought they were cool.

 

Don Anderson

 

 

On Thursday, March 11, 2021, 12:43:08 p.m. MST, George <george@...> wrote:

 

 

Rolando,

 

I thought everyone carried a dowel rod in their pen protector…oh, wait…I guess that’s a pencil.     <G>

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Roland Christen via groups.io
Sent: Thursday, March 11, 2021 1:21 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woops, you beat me to it, George. I call it the pencil balance (i don't always have a dowel rod laying around).

 

Rolando

 

 

 

-----Original Message-----
From: George <george@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Mar 11, 2021 1:00 pm
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

Guys,

 

Balance side-to-side setups with a dowel rod on a table and save yourselves the headaches.

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Woody Schlom
Sent: Thursday, March 11, 2021 12:55 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Jack,

 

I forgot that you have a side-by-side setup.  Those are a bear to balance.  As I recall, it took me nearly an hour to get my side-by-side solar setup properly balanced in all directions and axis the first time.  And your scopes are so much larger and heavier.

 

But at least the meter is helping.

 

All that said, if I could justify the cost, I’d sure like to get the AP gear-release retrofit kit their “new” mounts have.

 

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jack Huerkamp
Sent: Thursday, March 11, 2021 5:53 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woody,

I installed the PowerWerx meter in line with the power supply yesterday and tested balance. Al was fine in RA with equal current draw while moving the mount slowly.  However, when I set the scopes parallel to the ground and moved the mount North-South, the current draw to elevate the scopes was higher than that to lower the scopes.  So I need to correct the balance on the OTAs riding on the mount.  And since I have parallel OTAs, I not only need to check balance on the scopes in the North-South direction, I also have to adjust the parallel dovetail East-West to make sure all imbalance is accounted for.

Thanks for reminding me about the meter.

Jack Huerkamp


--
Roland Christen
Astro-Physics


Re: Quick Release Gearbox Modification for Older AP1600

Bob
 

Marj... I think most of us realize it wont be a cookie cutter mod, but well worth the effort and cost.  Opposed to the cost of a new mount and of course the biggest advantage... a very accurate balance which would alleviate an aweful lot of headaches!...Ive been asking for several years about this possible mod....  sign me up as well.... pleeeeaaassseee!...lol


On Mar 12, 2021, at 10:15 AM, Marj Christen <marj@...> wrote:



Jack and all,

 

The swap out is not an easy one, which is one of the reasons that we have not offered it yet. Yes, many of the components can be reused (motor assembly, worm gear, spur gears), which will reduce the cost. However, it is likely that the mounts will need to return here in order to swap out the components and to ensure accurate assembly.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Jack Huerkamp
Sent: Friday, March 12, 2021 7:41 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Roland, will this be a simple swap out for current AP1600 owners.  I assume that the existing worm gear would be retained and moved to the new housing for the quick release system.  Any estimate on price and is there a waiting list for this retrofit?

Jack Huerkamp


Re: Quick Release Gearbox Modification for Older AP1600

George
 

Don,

 

<G>   I am VERY impressed.    Oh the memories…just like the one that I had.    Sigh…

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Don Anderson via groups.io
Sent: Friday, March 12, 2021 10:18 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

You mean like this?

 

Don Anderson

 

 

On Friday, March 12, 2021, 07:57:25 a.m. MST, George <george@...> wrote:

 

 

Don,

 

They were only cool if they were full.   <G>    …but real cool was the slide rule slung from your belt in its case!    Talk about a chick magnet…ah, the old days!

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Don Anderson via groups.io
Sent: Thursday, March 11, 2021 6:13 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Pen protectors! Wow that goes back a long ways. i used to wear one every day when I was a TV Technician! Back then I thought they were cool.

 

Don Anderson

 

 

On Thursday, March 11, 2021, 12:43:08 p.m. MST, George <george@...> wrote:

 

 

Rolando,

 

I thought everyone carried a dowel rod in their pen protector…oh, wait…I guess that’s a pencil.     <G>

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Roland Christen via groups.io
Sent: Thursday, March 11, 2021 1:21 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woops, you beat me to it, George. I call it the pencil balance (i don't always have a dowel rod laying around).

 

Rolando

 

 

 

-----Original Message-----
From: George <george@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Mar 11, 2021 1:00 pm
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

Guys,

 

Balance side-to-side setups with a dowel rod on a table and save yourselves the headaches.

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Woody Schlom
Sent: Thursday, March 11, 2021 12:55 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Jack,

 

I forgot that you have a side-by-side setup.  Those are a bear to balance.  As I recall, it took me nearly an hour to get my side-by-side solar setup properly balanced in all directions and axis the first time.  And your scopes are so much larger and heavier.

 

But at least the meter is helping.

 

All that said, if I could justify the cost, I’d sure like to get the AP gear-release retrofit kit their “new” mounts have.

 

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jack Huerkamp
Sent: Thursday, March 11, 2021 5:53 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woody,

I installed the PowerWerx meter in line with the power supply yesterday and tested balance. Al was fine in RA with equal current draw while moving the mount slowly.  However, when I set the scopes parallel to the ground and moved the mount North-South, the current draw to elevate the scopes was higher than that to lower the scopes.  So I need to correct the balance on the OTAs riding on the mount.  And since I have parallel OTAs, I not only need to check balance on the scopes in the North-South direction, I also have to adjust the parallel dovetail East-West to make sure all imbalance is accounted for.

Thanks for reminding me about the meter.

Jack Huerkamp


--
Roland Christen
Astro-Physics


Re: Quick Release Gearbox Modification for Older AP1600

Don Anderson
 

You mean like this?

Don Anderson


On Friday, March 12, 2021, 07:57:25 a.m. MST, George <george@...> wrote:


Don,

 

They were only cool if they were full.   <G>    …but real cool was the slide rule slung from your belt in its case!    Talk about a chick magnet…ah, the old days!

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Don Anderson via groups.io
Sent: Thursday, March 11, 2021 6:13 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Pen protectors! Wow that goes back a long ways. i used to wear one every day when I was a TV Technician! Back then I thought they were cool.

 

Don Anderson

 

 

On Thursday, March 11, 2021, 12:43:08 p.m. MST, George <george@...> wrote:

 

 

Rolando,

 

I thought everyone carried a dowel rod in their pen protector…oh, wait…I guess that’s a pencil.     <G>

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Roland Christen via groups.io
Sent: Thursday, March 11, 2021 1:21 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woops, you beat me to it, George. I call it the pencil balance (i don't always have a dowel rod laying around).

 

Rolando

 

 

 

-----Original Message-----
From: George <george@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Mar 11, 2021 1:00 pm
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

Guys,

 

Balance side-to-side setups with a dowel rod on a table and save yourselves the headaches.

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Woody Schlom
Sent: Thursday, March 11, 2021 12:55 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Jack,

 

I forgot that you have a side-by-side setup.  Those are a bear to balance.  As I recall, it took me nearly an hour to get my side-by-side solar setup properly balanced in all directions and axis the first time.  And your scopes are so much larger and heavier.

 

But at least the meter is helping.

 

All that said, if I could justify the cost, I’d sure like to get the AP gear-release retrofit kit their “new” mounts have.

 

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jack Huerkamp
Sent: Thursday, March 11, 2021 5:53 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woody,

I installed the PowerWerx meter in line with the power supply yesterday and tested balance. Al was fine in RA with equal current draw while moving the mount slowly.  However, when I set the scopes parallel to the ground and moved the mount North-South, the current draw to elevate the scopes was higher than that to lower the scopes.  So I need to correct the balance on the OTAs riding on the mount.  And since I have parallel OTAs, I not only need to check balance on the scopes in the North-South direction, I also have to adjust the parallel dovetail East-West to make sure all imbalance is accounted for.

Thanks for reminding me about the meter.

Jack Huerkamp


--
Roland Christen
Astro-Physics


Re: Quick Release Gearbox Modification for Older AP1600

 

Jack and all,

 

The swap out is not an easy one, which is one of the reasons that we have not offered it yet. Yes, many of the components can be reused (motor assembly, worm gear, spur gears), which will reduce the cost. However, it is likely that the mounts will need to return here in order to swap out the components and to ensure accurate assembly.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Jack Huerkamp
Sent: Friday, March 12, 2021 7:41 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Roland, will this be a simple swap out for current AP1600 owners.  I assume that the existing worm gear would be retained and moved to the new housing for the quick release system.  Any estimate on price and is there a waiting list for this retrofit?

Jack Huerkamp


Re: Quick Release Gearbox Modification for Older AP1600

R Botero
 

I would like to know also; as a new owner of a 1600GTO with original gearboxes, I'm interested.
Thank you

Roberto


Re: Quick Release Gearbox Modification for Older AP1600

George
 

Jack,

 

You’re most welcome.   Enjoy!

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jack Huerkamp
Sent: Friday, March 12, 2021 7:43 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

George,

Thanks for posting the link.

Jack Huerkamp


Re: Quick Release Gearbox Modification for Older AP1600

thefamily90 Phillips
 

Love it! 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of George <george@...>
Sent: Friday, March 12, 2021 10:00:40 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600
 

Don,

 

They were only cool if they were full.   <G>    …but real cool was the slide rule slung from your belt in its case!    Talk about a chick magnet…ah, the old days!

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Don Anderson via groups.io
Sent: Thursday, March 11, 2021 6:13 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Pen protectors! Wow that goes back a long ways. i used to wear one every day when I was a TV Technician! Back then I thought they were cool.

 

Don Anderson

 

 

On Thursday, March 11, 2021, 12:43:08 p.m. MST, George <george@...> wrote:

 

 

Rolando,

 

I thought everyone carried a dowel rod in their pen protector…oh, wait…I guess that’s a pencil.     <G>

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Roland Christen via groups.io
Sent: Thursday, March 11, 2021 1:21 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woops, you beat me to it, George. I call it the pencil balance (i don't always have a dowel rod laying around).

 

Rolando

 

 

 

-----Original Message-----
From: George <george@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Mar 11, 2021 1:00 pm
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

Guys,

 

Balance side-to-side setups with a dowel rod on a table and save yourselves the headaches.

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Woody Schlom
Sent: Thursday, March 11, 2021 12:55 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Jack,

 

I forgot that you have a side-by-side setup.  Those are a bear to balance.  As I recall, it took me nearly an hour to get my side-by-side solar setup properly balanced in all directions and axis the first time.  And your scopes are so much larger and heavier.

 

But at least the meter is helping.

 

All that said, if I could justify the cost, I’d sure like to get the AP gear-release retrofit kit their “new” mounts have.

 

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jack Huerkamp
Sent: Thursday, March 11, 2021 5:53 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woody,

I installed the PowerWerx meter in line with the power supply yesterday and tested balance. Al was fine in RA with equal current draw while moving the mount slowly.  However, when I set the scopes parallel to the ground and moved the mount North-South, the current draw to elevate the scopes was higher than that to lower the scopes.  So I need to correct the balance on the OTAs riding on the mount.  And since I have parallel OTAs, I not only need to check balance on the scopes in the North-South direction, I also have to adjust the parallel dovetail East-West to make sure all imbalance is accounted for.

Thanks for reminding me about the meter.

Jack Huerkamp


--
Roland Christen
Astro-Physics


Re: Quick Release Gearbox Modification for Older AP1600

George
 

Don,

 

They were only cool if they were full.   <G>    …but real cool was the slide rule slung from your belt in its case!    Talk about a chick magnet…ah, the old days!

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Don Anderson via groups.io
Sent: Thursday, March 11, 2021 6:13 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Pen protectors! Wow that goes back a long ways. i used to wear one every day when I was a TV Technician! Back then I thought they were cool.

 

Don Anderson

 

 

On Thursday, March 11, 2021, 12:43:08 p.m. MST, George <george@...> wrote:

 

 

Rolando,

 

I thought everyone carried a dowel rod in their pen protector…oh, wait…I guess that’s a pencil.     <G>

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Roland Christen via groups.io
Sent: Thursday, March 11, 2021 1:21 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woops, you beat me to it, George. I call it the pencil balance (i don't always have a dowel rod laying around).

 

Rolando

 

 

 

-----Original Message-----
From: George <george@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Mar 11, 2021 1:00 pm
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

Guys,

 

Balance side-to-side setups with a dowel rod on a table and save yourselves the headaches.

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Woody Schlom
Sent: Thursday, March 11, 2021 12:55 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Jack,

 

I forgot that you have a side-by-side setup.  Those are a bear to balance.  As I recall, it took me nearly an hour to get my side-by-side solar setup properly balanced in all directions and axis the first time.  And your scopes are so much larger and heavier.

 

But at least the meter is helping.

 

All that said, if I could justify the cost, I’d sure like to get the AP gear-release retrofit kit their “new” mounts have.

 

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jack Huerkamp
Sent: Thursday, March 11, 2021 5:53 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woody,

I installed the PowerWerx meter in line with the power supply yesterday and tested balance. Al was fine in RA with equal current draw while moving the mount slowly.  However, when I set the scopes parallel to the ground and moved the mount North-South, the current draw to elevate the scopes was higher than that to lower the scopes.  So I need to correct the balance on the OTAs riding on the mount.  And since I have parallel OTAs, I not only need to check balance on the scopes in the North-South direction, I also have to adjust the parallel dovetail East-West to make sure all imbalance is accounted for.

Thanks for reminding me about the meter.

Jack Huerkamp


--
Roland Christen
Astro-Physics


Re: Quick Release Gearbox Modification for Older AP1600

Jack Huerkamp
 

George,

Thanks for posting the link.

Jack Huerkamp


Re: Quick Release Gearbox Modification for Older AP1600

Jack Huerkamp
 

Roland, will this be a simple swap out for current AP1600 owners.  I assume that the existing worm gear would be retained and moved to the new housing for the quick release system.  Any estimate on price and is there a waiting list for this retrofit?

Jack Huerkamp


Re: Quick Release Gearbox Modification for Older AP1600

Don Anderson
 

Had one of those too. Still Have it.Ha Ha. Requires no batteries. Never needs to be rebooted!

Don Anderson


On Thursday, March 11, 2021, 05:33:45 p.m. MST, M Hambrick <mhambrick563@...> wrote:


Not to be picky, but they are called pocket protectors, and only the slide rule ranks higher in the engineer's kit.

Mike


Re: Quick Release Gearbox Modification for Older AP1600

M Hambrick
 

Not to be picky, but they are called pocket protectors, and only the slide rule ranks higher in the engineer's kit.

Mike


Re: Quick Release Gearbox Modification for Older AP1600

Don Anderson
 

Pen protectors! Wow that goes back a long ways. i used to wear one every day when I was a TV Technician! Back then I thought they were cool.

Don Anderson


On Thursday, March 11, 2021, 12:43:08 p.m. MST, George <george@...> wrote:


Rolando,

 

I thought everyone carried a dowel rod in their pen protector…oh, wait…I guess that’s a pencil.     <G>

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Roland Christen via groups.io
Sent: Thursday, March 11, 2021 1:21 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woops, you beat me to it, George. I call it the pencil balance (i don't always have a dowel rod laying around).

 

Rolando

 

 

 

-----Original Message-----
From: George <george@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Mar 11, 2021 1:00 pm
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

Guys,

 

Balance side-to-side setups with a dowel rod on a table and save yourselves the headaches.

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Woody Schlom
Sent: Thursday, March 11, 2021 12:55 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Jack,

 

I forgot that you have a side-by-side setup.  Those are a bear to balance.  As I recall, it took me nearly an hour to get my side-by-side solar setup properly balanced in all directions and axis the first time.  And your scopes are so much larger and heavier.

 

But at least the meter is helping.

 

All that said, if I could justify the cost, I’d sure like to get the AP gear-release retrofit kit their “new” mounts have.

 

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jack Huerkamp
Sent: Thursday, March 11, 2021 5:53 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

Woody,

I installed the PowerWerx meter in line with the power supply yesterday and tested balance. Al was fine in RA with equal current draw while moving the mount slowly.  However, when I set the scopes parallel to the ground and moved the mount North-South, the current draw to elevate the scopes was higher than that to lower the scopes.  So I need to correct the balance on the OTAs riding on the mount.  And since I have parallel OTAs, I not only need to check balance on the scopes in the North-South direction, I also have to adjust the parallel dovetail East-West to make sure all imbalance is accounted for.

Thanks for reminding me about the meter.

Jack Huerkamp


--
Roland Christen
Astro-Physics


Re: Quick Release Gearbox Modification for Older AP1600

Keith Olsen
 

I switched from a piggyback setup to a side by side setup and I found that it did help with flexure.  But I have a permanent OBS so I only had to balance it once. It did take longer to get the right balance but it was easier that I thought it would be.

A problem with a side by side setup is more declination pier restrictions than with a piggyback setup.


Re: Quick Release Gearbox Modification for Older AP1600

Woody Schlom
 

Mike,

 

I don’t have a definitive answer to that question, but my very heavy (12 lbs. I think) Losmandy side-by-side saddle seems quite solid and rigid for the small but heavy refractors I put on it.

 

I’m sure others will correct me if I’m wrong, but I suspect that the lower scope position (closer to the mount’s pivot points) of a side-by-side setup potentially make tracking and guiding slightly more accurate.   But that’s a wild guess.

 

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of M Hambrick
Sent: Thursday, March 11, 2021 12:09 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

 

The discussion about side to side systems has me wondering - Which has less flexure; side to side or piggyback ?

Mike


Re: Quick Release Gearbox Modification for Older AP1600

M Hambrick
 

The discussion about side to side systems has me wondering - Which has less flexure; side to side or piggyback ?

Mike


Re: Quick Release Gearbox Modification for Older AP1600

Roland Christen
 

A "teak" is a tiny tweak. A "tiny teak" is a micro-tweak. Let's get these definishions schraightened out!

Rolando



-----Original Message-----
From: George <george@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Mar 11, 2021 1:48 pm
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600

Oops, I guess the word is “tweak”, not “teak”.    Although teak would make a nice dowel rod.
 
Regards,
 
George
 
George Whitney
Astro-Physics, Inc.
Phone:  815-222-6538 (direct line)
Phone:  815-282-1513 (office)
Email:  george@...
 
From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of George
Sent: Thursday, March 11, 2021 1:43 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600
 
Woody,
 
<G>   It’ll make your life easier.    Only tiny teaks will be necessary on mount.
 
Regards,
 
George
 
George Whitney
Astro-Physics, Inc.
Phone:  815-222-6538 (direct line)
Phone:  815-282-1513 (office)
Email:  george@...
 
From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Woody Schlom
Sent: Thursday, March 11, 2021 1:14 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600
 
George,
 
Thank you.  That looks like a very helpful document.  It’s not the same procedure I’ve used in the past, but I’ll give it a try the next time I setup my side-by-side solar scopes.
 
Woody
 
From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of George
Sent: Thursday, March 11, 2021 11:01 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600
 
Guys,
 
Balance side-to-side setups with a dowel rod on a table and save yourselves the headaches.
 
Regards,
 
George
 
George Whitney
Astro-Physics, Inc.
Phone:  815-222-6538 (direct line)
Phone:  815-282-1513 (office)
Email:  george@...
 
From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Woody Schlom
Sent: Thursday, March 11, 2021 12:55 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600
 
Jack,
 
I forgot that you have a side-by-side setup.  Those are a bear to balance.  As I recall, it took me nearly an hour to get my side-by-side solar setup properly balanced in all directions and axis the first time.  And your scopes are so much larger and heavier.
 
But at least the meter is helping.
 
All that said, if I could justify the cost, I’d sure like to get the AP gear-release retrofit kit their “new” mounts have.
 
Woody
 
From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jack Huerkamp
Sent: Thursday, March 11, 2021 5:53 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older AP1600
 
Woody,

I installed the PowerWerx meter in line with the power supply yesterday and tested balance. Al was fine in RA with equal current draw while moving the mount slowly.  However, when I set the scopes parallel to the ground and moved the mount North-South, the current draw to elevate the scopes was higher than that to lower the scopes.  So I need to correct the balance on the OTAs riding on the mount.  And since I have parallel OTAs, I not only need to check balance on the scopes in the North-South direction, I also have to adjust the parallel dovetail East-West to make sure all imbalance is accounted for.

Thanks for reminding me about the meter.

Jack Huerkamp

--
Roland Christen
Astro-Physics

5481 - 5500 of 82386