Date   

Re: Keyspan USB Server

Gary Burk
 

My Keyspan USB-to-4 serial port adaptor has been in my central Ohio
observatory for about 3 years now with no problems, During the winter
the temperature gets down near or a bit below 0F, and during the
summer as high as near 100F, although that is unusual.

Regards,
Gary

--- In ap-gto@..., "KG KIRKLEY" <kgkirkley@...> wrote:


In a message dated 06/12/08 17:43:22 Central Daylight Time,
sreilly@... writes:
I’m curious as to the warmest/coldest temperatures these units
have
operated. I ask because the old EdgePort seems to have problems
below 45° or
so. I moved it into my warm room but still a consideration,
especially if
using in the field.


Interesting?

I've had my Edgeport repeatedly down to well below freezing out at
dark sites with no problems.

Kent Kirkley


[Non-text portions of this message have been removed]


Re: Preferred field polar alignment method?

Pierre Henrotay
 

Rick,

PAM is very fast and convenient to use, both for measuring the
misalignment and for correcting.
What I do observe is that:
- the results are not exactly repeatable (say you just measure the
misalignment and do it twice without changing anything):
the error in amplitude is generally consistent, not the error in hour
angle
- when measuring the misalignment on 2 distinct regions (on the same
side of the meridian), the resulting numbers can be significantly
different, both in amplitude and in hour angle
- I can never reach figures below 0.5 arcmin, and more typically I
get 1 arcminute. Only a few iterations are required (2-3), more do
not help.

PEMPro is also quite convenient to use, but takes (significantly)
more time.
The results are definitely more consistent and I believe a better
accuracy can be obtained:
say you do 2 runs without correcting anything, just to measure the
misalignment, you get pretty much the same values for each run.
But clearly you need to let the software run for about 3-4 minutes at
least in each measuring step before the results can be considered to
be meaningful.
PEMPro reports show that I can be very close to the pole: my best
value so far is an (incredible and somewhat doubtful)... 5 arcsec.
More typically is 30 arcsec or below.

My procedure so far is to use PAM (more exactly first use the polar
scope for rough alignment and quick star drift meridian delay, then
PAM) and to start the PAM alignment process in the area where I will
be imaging next whenever possible.
Most pics so far were made at about 2 arcsec/pixel and I am quite
happy to image at least 4 minutes with no guiding, just with PEM on
(Mach1).

My 2 cents, I'd be happy to hear from further experiences.

Pierre

--- In ap-gto@..., "Rick Wiggins" <rickwiggins@...> wrote:

Hi,
How would you contrast PAM with PEMPRO Polar Align?
Thanks, Rick


Re: Keyspan USB Server

Mark Jenkins
 

Wrap a couple of dew heaters around it.

Mark

On Jun 12, 2008, at 5:42 PM, Steve Reilly wrote:

Hello Howard,

Im curious as to the warmest/coldest temperatures these units have
operated. I ask because the old EdgePort seems to have problems
below 45 or
so. I moved it into my warm room but still a consideration,
especially if
using in the field.

Thanks,

Steve


[Non-text portions of this message have been removed]


Re: Keyspan USB Server

astronomertoo
 

Howard,
Very nice writeup, the kind I can learn from. I ordered a few of the
new products a few days ago and look forward to using them.
Bob Cuberly



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

Hello,
We have the units available and up on our website.

http://www.astro-
physics.com/products/accessories/software/Serial_USB/se
rialusb.htm
We have not tested the USB Server as thoroughly as we would like
to, but
were confident enough to go ahead and start offering it. Our main
concern arises when using the USB Server with the USB to Serial
adapters
if everything is fully loaded. There are potential issues that
stem
from the fact that serial communicates in a way that is different
from
USB, which in turn communicates in a way that is different from
Ethernet. Think of the old party game of "whispers" or "I've got
a
secret" where a secret message gets passed around the room via
whispers
and then the original message is compared to what the last person
heard,
and everyone supposedly gets amused by how the message was
corrupted.
Yippie gee whiz! Isn't this fun! Now imagine this game in a room
where everyone speaks a different language. This, in effect, is
what
the system I demonstrated at NEAF is doing, and so far, it has
worked
remarkably well for us, even on a machine running Vista.
Although we had all four ports of the USB to 4-port Serial adapter
going
at once, we did not have the remaining three USB ports of the USB
server
simultaneously in use at NEAF. We were also using very smartly
written
software - PulseGuide and TheSky - both of which handle their serial
communications in an intelligent way that doesn't overload the COM
ports. Finally, I have not tested other serial based software like
focusers, rotators or dew heater controllers, nor have I had
additional
USB ports occupied with cameras or other devices while
simultaneously
giving the serial ports a workout. I am very confident that the
USB
server will work extremely well to communicate with USB devices.
That
was its intended purpose, and I'm sure it will handle four USB
devices
at once with flying colors. It was not, however, designed to be a
bridge from Ethernet to Serial, even though we are having some
success
using it in that manner by combining the USB server with the USB to
serial adapters. The real test will be for people like you to get
these products out in the field and get them working under real
observatory situations with a variety of equipment.

Just a couple more points:

1. I am most certainly NOT trying to dissuade anyone from trying
the
USB Server as a remote solution. If we did not feel that it could
be
used successfully, we would not be offering it. I did, however,
want
to be honest about potential limitations and about the "unknowns"
that
still exist. Between my busy schedule and the never ending rain
here
in the Midwest, I also don't know how or when I'll get more testing
done, especially real life testing under the stars.

2. We will also be offering two more products from Keyspan when I
get
them evaluated a bit further: Another USB server that is USB2.0 for
higher speed applications like cameras, but has two ports instead of
four, and then the Mini-port Replicator that was mentioned by Dale
Ghent
in an earlier set of posts (21986)

3. Contrary to several earlier posts, the Keyspan units DO NOT
use the
Prolific chip sets that tend to be so problem prone. They use
chipsets
from Texas Instruments that have the added advantage of containing
re-programmable ROM. This allows the Keyspan USB to Serial
adapters to
be fully updated instead of only updated with band-aids to the
drivers
on board the computer. Permit me to repeat: Keyspan USB to Serial
Adapters DO NOT use Prolific chip sets!

4. In addition to the Keyspan units, we have started selling
straight
through serial cables to eliminate the hassle of trying to find
them in
the stores. They are 15 feet in length, and really truly are
straight-through!
Mag. 7 skies!
Howard Hedlund

Astro-Physics, Inc.

815-282-1513

________________________________

From: ap-gto@... [mailto:ap-gto@...] On
Behalf
Of Morgan Spangle
Sent: Thursday, June 12, 2008 3:29 PM
To: ap-gto@...
Subject: [ap-gto] Keyspan USB Server



Howard, if you're monitoring this group - when I saw you at NEAF you
were experimenting with the Keyspan USB server (I think it was their
product US-4A). Have you got any progress to report? Seemed very
promising for remotely running the mount, camera, etc..
thanks,
Morgan Spangle
1200 GTO





[Non-text portions of this message have been removed]


jammed threads

Gerald Sargent <sargentg@...>
 

Re optical paths, the first time I used it was on tight fitting
"T" threads and I have never had it "migrate" to where it
was not needed, however only the smallest amount is needed,
I use a cotton bud to apply it - with caution, I have used it for
tight fitting optic filters and no problems, Gerald.


Re: Keyspan USB Server

Howard Hedlund
 

Hello,



We have the units available and up on our website.



http://www.astro-physics.com/products/accessories/software/Serial_USB/se
rialusb.htm



We have not tested the USB Server as thoroughly as we would like to, but
were confident enough to go ahead and start offering it. Our main
concern arises when using the USB Server with the USB to Serial adapters
if everything is fully loaded. There are potential issues that stem
from the fact that serial communicates in a way that is different from
USB, which in turn communicates in a way that is different from
Ethernet. Think of the old party game of "whispers" or "I've got a
secret" where a secret message gets passed around the room via whispers
and then the original message is compared to what the last person heard,
and everyone supposedly gets amused by how the message was corrupted.
Yippie gee whiz! Isn't this fun! Now imagine this game in a room
where everyone speaks a different language. This, in effect, is what
the system I demonstrated at NEAF is doing, and so far, it has worked
remarkably well for us, even on a machine running Vista.



Although we had all four ports of the USB to 4-port Serial adapter going
at once, we did not have the remaining three USB ports of the USB server
simultaneously in use at NEAF. We were also using very smartly written
software - PulseGuide and TheSky - both of which handle their serial
communications in an intelligent way that doesn't overload the COM
ports. Finally, I have not tested other serial based software like
focusers, rotators or dew heater controllers, nor have I had additional
USB ports occupied with cameras or other devices while simultaneously
giving the serial ports a workout. I am very confident that the USB
server will work extremely well to communicate with USB devices. That
was its intended purpose, and I'm sure it will handle four USB devices
at once with flying colors. It was not, however, designed to be a
bridge from Ethernet to Serial, even though we are having some success
using it in that manner by combining the USB server with the USB to
serial adapters. The real test will be for people like you to get
these products out in the field and get them working under real
observatory situations with a variety of equipment.



Just a couple more points:

1. I am most certainly NOT trying to dissuade anyone from trying the
USB Server as a remote solution. If we did not feel that it could be
used successfully, we would not be offering it. I did, however, want
to be honest about potential limitations and about the "unknowns" that
still exist. Between my busy schedule and the never ending rain here
in the Midwest, I also don't know how or when I'll get more testing
done, especially real life testing under the stars.

2. We will also be offering two more products from Keyspan when I get
them evaluated a bit further: Another USB server that is USB2.0 for
higher speed applications like cameras, but has two ports instead of
four, and then the Mini-port Replicator that was mentioned by Dale Ghent
in an earlier set of posts (21986)

3. Contrary to several earlier posts, the Keyspan units DO NOT use the
Prolific chip sets that tend to be so problem prone. They use chipsets
from Texas Instruments that have the added advantage of containing
re-programmable ROM. This allows the Keyspan USB to Serial adapters to
be fully updated instead of only updated with band-aids to the drivers
on board the computer. Permit me to repeat: Keyspan USB to Serial
Adapters DO NOT use Prolific chip sets!

4. In addition to the Keyspan units, we have started selling straight
through serial cables to eliminate the hassle of trying to find them in
the stores. They are 15 feet in length, and really truly are
straight-through!



Mag. 7 skies!



Howard Hedlund

Astro-Physics, Inc.

815-282-1513

________________________________

From: ap-gto@... [mailto:ap-gto@...] On Behalf
Of Morgan Spangle
Sent: Thursday, June 12, 2008 3:29 PM
To: ap-gto@...
Subject: [ap-gto] Keyspan USB Server



Howard, if you're monitoring this group - when I saw you at NEAF you
were experimenting with the Keyspan USB server (I think it was their
product US-4A). Have you got any progress to report? Seemed very
promising for remotely running the mount, camera, etc..
thanks,
Morgan Spangle
1200 GTO


Re: Keyspan USB Server

Kent Kirkley
 

In a message dated 06/12/08 17:43:22 Central Daylight Time, sreilly@... writes:
I’m curious as to the warmest/coldest temperatures these units have
operated. I ask because the old EdgePort seems to have problems below 45° or
so. I moved it into my warm room but still a consideration, especially if
using in the field.


Interesting?

I've had my Edgeport repeatedly down to well below freezing out at dark sites with no problems.

Kent Kirkley


Re: Keyspan USB Server

Steve Reilly <sreilly@...>
 

Hello Howard,



I’m curious as to the warmest/coldest temperatures these units have
operated. I ask because the old EdgePort seems to have problems below 45° or
so. I moved it into my warm room but still a consideration, especially if
using in the field.



Thanks,



Steve



_____

From: ap-gto@... [mailto:ap-gto@...] On Behalf Of
Howard
Sent: Thursday, June 12, 2008 6:58 PM
To: ap-gto@...
Subject: RE: [ap-gto] Keyspan USB Server



Hello,

We have the units available and up on our website.

http://www.astro-
<http://www.astro-physics.com/products/accessories/software/Serial_USB/se>
physics.com/products/accessories/software/Serial_USB/se
rialusb.htm

We have not tested the USB Server as thoroughly as we would like to, but
were confident enough to go ahead and start offering it. Our main
concern arises when using the USB Server with the USB to Serial adapters
if everything is fully loaded. There are potential issues that stem
from the fact that serial communicates in a way that is different from
USB, which in turn communicates in a way that is different from
Ethernet. Think of the old party game of "whispers" or "I've got a
secret" where a secret message gets passed around the room via whispers
and then the original message is compared to what the last person heard,
and everyone supposedly gets amused by how the message was corrupted.
Yippie gee whiz! Isn't this fun! Now imagine this game in a room
where everyone speaks a different language. This, in effect, is what
the system I demonstrated at NEAF is doing, and so far, it has worked
remarkably well for us, even on a machine running Vista.

Although we had all four ports of the USB to 4-port Serial adapter going
at once, we did not have the remaining three USB ports of the USB server
simultaneously in use at NEAF. We were also using very smartly written
software - PulseGuide and TheSky - both of which handle their serial
communications in an intelligent way that doesn't overload the COM
ports. Finally, I have not tested other serial based software like
focusers, rotators or dew heater controllers, nor have I had additional
USB ports occupied with cameras or other devices while simultaneously
giving the serial ports a workout. I am very confident that the USB
server will work extremely well to communicate with USB devices. That
was its intended purpose, and I'm sure it will handle four USB devices
at once with flying colors. It was not, however, designed to be a
bridge from Ethernet to Serial, even though we are having some success
using it in that manner by combining the USB server with the USB to
serial adapters. The real test will be for people like you to get
these products out in the field and get them working under real
observatory situations with a variety of equipment.

Just a couple more points:

1. I am most certainly NOT trying to dissuade anyone from trying the
USB Server as a remote solution. If we did not feel that it could be
used successfully, we would not be offering it. I did, however, want
to be honest about potential limitations and about the "unknowns" that
still exist. Between my busy schedule and the never ending rain here
in the Midwest, I also don't know how or when I'll get more testing
done, especially real life testing under the stars.

2. We will also be offering two more products from Keyspan when I get
them evaluated a bit further: Another USB server that is USB2.0 for
higher speed applications like cameras, but has two ports instead of
four, and then the Mini-port Replicator that was mentioned by Dale Ghent
in an earlier set of posts (21986)

3. Contrary to several earlier posts, the Keyspan units DO NOT use the
Prolific chip sets that tend to be so problem prone. They use chipsets
from Texas Instruments that have the added advantage of containing
re-programmable ROM. This allows the Keyspan USB to Serial adapters to
be fully updated instead of only updated with band-aids to the drivers
on board the computer. Permit me to repeat: Keyspan USB to Serial
Adapters DO NOT use Prolific chip sets!

4. In addition to the Keyspan units, we have started selling straight
through serial cables to eliminate the hassle of trying to find them in
the stores. They are 15 feet in length, and really truly are
straight-through!

Mag. 7 skies!

Howard Hedlund

Astro-Physics, Inc.

815-282-1513

________________________________

From: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com
[mailto:ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com] On Behalf
Of Morgan Spangle
Sent: Thursday, June 12, 2008 3:29 PM
To: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com
Subject: [ap-gto] Keyspan USB Server

Howard, if you're monitoring this group - when I saw you at NEAF you
were experimenting with the Keyspan USB server (I think it was their
product US-4A). Have you got any progress to report? Seemed very
promising for remotely running the mount, camera, etc..
thanks,
Morgan Spangle
1200 GTO

[Non-text portions of this message have been removed]





[Non-text portions of this message have been removed]


Re: Keyspan USB Server

observe_m13
 

--- In ap-gto@..., "Morgan Spangle" <msfainc@...> wrote:

Howard, if you're monitoring this group - when I saw you at NEAF you
were experimenting with the Keyspan USB server (I think it was their
product US-4A). Have you got any progress to report? Seemed very
promising for remotely running the mount, camera, etc..
thanks,
Morgan Spangle
1200 GTO
http://www.astro-physics.com/products/accessories/software/Serial_USB/serialusb.htm


Keyspan USB Server

Morgan Spangle <msfainc@...>
 

Howard, if you're monitoring this group - when I saw you at NEAF you
were experimenting with the Keyspan USB server (I think it was their
product US-4A). Have you got any progress to report? Seemed very
promising for remotely running the mount, camera, etc..
thanks,
Morgan Spangle
1200 GTO


Re: ATS pier adapter for Mach 1

Howard Hedlund
 

Any good machine shop could also do the work for you. They might be a
bit more accurate in their hole locations if you aren't comfortable with
such "surgeries." You might also want to have the ADATRI in hand as
well as the specs from the web page when you take the plate in to be
drilled and tapped, just to be sure they understand what is required.
Not all machinists are as skilled as the guys we have here! ;-)



Mag. 7 skies!



Howard Hedlund

Astro-Physics, Inc.

815-282-1513

________________________________

From: ap-gto@... [mailto:ap-gto@...] On Behalf
Of jimhp29401us
Sent: Thursday, June 12, 2008 9:53 AM
To: ap-gto@...
Subject: [ap-gto] Re: ATS pier adapter for Mach 1



Simply drill and tap. Hmmm... Guess I can buy the stuff to do that at
Lowes or the local hardware shop...

Thanks,

Jim

Hi Jim,



If you have either a flat plate on top of your ATS pier, or the 900
Standard Pier Adapter (900SPA), simply drill and tap three 5/16-18
holes
for the Tripod Adapter (ADATRI) and install it on top of the flat
surface.

http://www.astro-
physics.com/products/accessories/mounting_acc/piers.htm
#adatri



Mag. 7 skies!



Howard Hedlund

Astro-Physics, Inc.

815-282-1513

________________________________

From: ap-gto@... <mailto:ap-gto%40yahoogroups.com>
[mailto:ap-gto@... <mailto:ap-gto%40yahoogroups.com> ] On
Behalf
Of jimhp29401us
Sent: Thursday, June 12, 2008 9:12 AM
To: ap-gto@... <mailto:ap-gto%40yahoogroups.com>
Subject: [ap-gto] ATS pier adapter for Mach 1



Hello,
I have an ATS pier that was made for an AP 900 GOTO mount. I have
sold the AP 900 ad now have a Mach 1. Is there an adapter that will
allow me to attach the Mach 1 to the ATS pier?

Jim







Re: more sources Re: Re: jammed threads

Rich N <rnapo@...>
 

I'm not so fond of Teflon tape when used on something that
is frequently screwed on and off.

Or Teflon Tape...joe :)
"May You Go Among The Imperishable Stars"
Joe Mize www.cav-sfo.com
Chiefland Astronomy Village, Fla.
----- Original Message -----
From: "Rich N" <rnapo@...>
To: <ap-gto@...>
Sent: Wednesday, June 11, 2008 9:17 PM
Subject: Re: more sources Re: [ap-gto] Re: jammed threads

Or, you can to what I've done and put a small bit of Chapstick on the threads. It only needs to be done once. :-)
I've done on a couple of my AP mounts. Works just fine.
Rich
------------------------------------
To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gtoYahoo! Groups Links


Re: ATS pier adapter for Mach 1

Howard Hedlund
 

Hi Jim,



If you have either a flat plate on top of your ATS pier, or the 900
Standard Pier Adapter (900SPA), simply drill and tap three 5/16-18 holes
for the Tripod Adapter (ADATRI) and install it on top of the flat
surface.

http://www.astro-physics.com/products/accessories/mounting_acc/piers.htm
#adatri



Mag. 7 skies!



Howard Hedlund

Astro-Physics, Inc.

815-282-1513

________________________________

From: ap-gto@... [mailto:ap-gto@...] On Behalf
Of jimhp29401us
Sent: Thursday, June 12, 2008 9:12 AM
To: ap-gto@...
Subject: [ap-gto] ATS pier adapter for Mach 1



Hello,
I have an ATS pier that was made for an AP 900 GOTO mount. I have
sold the AP 900 ad now have a Mach 1. Is there an adapter that will
allow me to attach the Mach 1 to the ATS pier?

Jim


Re: ATS pier adapter for Mach 1

jimhp29401us
 

Simply drill and tap. Hmmm... Guess I can buy the stuff to do that at
Lowes or the local hardware shop...

Thanks,

Jim


Hi Jim,



If you have either a flat plate on top of your ATS pier, or the 900
Standard Pier Adapter (900SPA), simply drill and tap three 5/16-18
holes
for the Tripod Adapter (ADATRI) and install it on top of the flat
surface.

http://www.astro-
physics.com/products/accessories/mounting_acc/piers.htm
#adatri



Mag. 7 skies!



Howard Hedlund

Astro-Physics, Inc.

815-282-1513

________________________________

From: ap-gto@... [mailto:ap-gto@...] On
Behalf
Of jimhp29401us
Sent: Thursday, June 12, 2008 9:12 AM
To: ap-gto@...
Subject: [ap-gto] ATS pier adapter for Mach 1



Hello,
I have an ATS pier that was made for an AP 900 GOTO mount. I have
sold the AP 900 ad now have a Mach 1. Is there an adapter that will
allow me to attach the Mach 1 to the ATS pier?

Jim





[Non-text portions of this message have been removed]


Re: more sources Re: Re: jammed threads

Joe Mize
 

Or Teflon Tape...joe :)


"May You Go Among The Imperishable Stars"
Joe Mize www.cav-sfo.com
Chiefland Astronomy Village, Fla.

----- Original Message -----
From: "Rich N" <rnapo@...>
To: <ap-gto@...>
Sent: Wednesday, June 11, 2008 9:17 PM
Subject: Re: more sources Re: [ap-gto] Re: jammed threads


Or, you can to what I've done and put a small bit of Chapstick on the threads. It only needs to be done once. :-)
I've done on a couple of my AP mounts. Works just fine.
Rich
------------------------------------
To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gtoYahoo! Groups Links


Re: jammed threads

Joe Mize
 

Rick, I agree. Keep this stuff away from your optics. The liquid carrier evaporates away over time...joe :)


"May You Go Among The Imperishable Stars"
Joe Mize www.cav-sfo.com
Chiefland Astronomy Village, Fla.

----- Original Message -----
From: "Rick Wiggins" <rickwiggins@...>
To: <ap-gto@...>
Sent: Thursday, June 12, 2008 10:27 AM
Subject: [ap-gto] Re: jammed threads


Hi Gerald,
I would caution against using this anywhere near the optical path. It
doesn't sound like something you want on optical surfaces.
Thanks, Rick

--- In ap-gto@..., Gerald Sargent <sargentg@...> wrote:

I was advised by a skilled and experienced tool maker to use
the "nickel" antti seize compound. This is a dark gray/black
substance that is difficult to remove from clothing so be careful.
The smallest smear works wonders, I find it especially useful
where "T:" threads and the like are concerned. I think in the
case of the jammed CW extension tthis would prove a permanent
solution. my hp'th Gerald.


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

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




Re: jammed threads

Wiggins, Rick
 

Hi Gerald,
I would caution against using this anywhere near the optical path. It
doesn't sound like something you want on optical surfaces.
Thanks, Rick

--- In ap-gto@..., Gerald Sargent <sargentg@...> wrote:

I was advised by a skilled and experienced tool maker to use
the "nickel" antti seize compound. This is a dark gray/black
substance that is difficult to remove from clothing so be careful.
The smallest smear works wonders, I find it especially useful
where "T:" threads and the like are concerned. I think in the
case of the jammed CW extension tthis would prove a permanent
solution. my hp'th Gerald.


ATS pier adapter for Mach 1

jimhp29401us
 

Hello,
I have an ATS pier that was made for an AP 900 GOTO mount. I have
sold the AP 900 ad now have a Mach 1. Is there an adapter that will
allow me to attach the Mach 1 to the ATS pier?

Jim


Re: jammed threads

Joe Mize
 

NAPA has it, called Anti-Cease. Gerald is correct it is messy. "A little dab will do ya", for those of us old enough to remember the jingle....joe :)


"May You Go Among The Imperishable Stars"
Joe Mize www.cav-sfo.com
Chiefland Astronomy Village, Fla.

----- Original Message -----
From: "TerryLO" <terry@...>
To: <ap-gto@...>
Sent: Wednesday, June 11, 2008 8:59 PM
Subject: [ap-gto] Re: jammed threads


Thanks, Gerald. I had not heard of this before.

Terry

--- In ap-gto@..., Gerald Sargent <sargentg@...> wrote:

I was advised by a skilled and experienced tool maker to use
the "nickel" antti seize compound. This is a dark gray/black
substance that is difficult to remove from clothing so be careful.
The smallest smear works wonders, I find it especially useful
where "T:" threads and the like are concerned. I think in the
case of the jammed CW extension tthis would prove a permanent
solution. my hp'th Gerald.


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

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




Erratic Movement in Dec slewing

starclusterseeker <classicstone9474@...>
 

Hi, I finally was able to checkout my AP1200 GTO (Aug.2006 version).
The backlash on the keypad was ste @ 0. Removing the cover plate of the
Dec gears,I removed the (2) spear gears. The gear that has the brass
insert the set-screw is not loose. I assembled the gears back into
their home and without replacing the cover I controlled the mount in
different slew speeds. The "1" setting causes the uppermost spur gear
to function erratic. No other speeds create any issues! I have gotten a
few responses in the last post. I am puzzled! Must be something wrong
under under the gear box that is causing this. Has anybody gone further
with the disassembly of their mount? How is the gear with the brass
insert attached to the Dec axis under the gear box. Last resort before
sending in the mount for repairs. - Mike