Date   

Re: Mach2 Slew Speed, Power, and Voltage Question #Mach2GTO

ap@CaptivePhotons.com
 

That’s not necessarily true.  If you browse the specifications at the Intel site, it varies a lot.  Some generations are strictly 19v, some are a mixture of 12-24v, some 12-19v.   It varies by CPU (maybe and kit but it looked more like CPU).

 

The marketing literature is often vague, but Intel publishes the actual requirements.  Here’s an example side by side of two 11th gen models:

 

https://ark.intel.com/content/www/us/en/ark/compare.html?productIds=205038,212519

 

The first is 19 only, the second 12-24.

 

Buy carefully.

 

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Tom Blahovici via groups.io
Sent: Tuesday, March 30, 2021 12:18 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Slew Speed, Power, and Voltage Question #Mach2GTO

 

Hi

BTW, if you are using an Intel NUC, 19V is not necessary. They work just fine at 12V as per specs.
My NUC is an i5 with SSD, and thurnderbird 3 to 10G Base T adapter. It works reliably with no issues.
Might save a little space and battery power.
Tom


Re: APCC

vsalfranc@...
 

problem solved. It was my mistake. Needs to go back to school and learn to read. :)


Re: APCC

vsalfranc@...
 

Thank you for the feedback. I followed the link all the way and when I click download nothing happen.
I will go for the APCC pro but until I can download a copy I will have to wait till this issue is resolved.
Thanks for your help.
Vince


Mac Desktop version of SkySafari Updated today to 6.8.X

Allen Ruckle
 

The iPad version of SkySafari was updated January 15th to V6.8.0, to include the added A-P park positions and Home feature, .  The Desktop version however until today had not been update to include the A-P feature updates.   Today V6.8.0,  update is available in the Apple App store.

aruckle


Re: Mach2 Slew Speed, Power, and Voltage Question #Mach2GTO

Seb@stro
 

Just bought a Minix Neo J50C-4 Max with similar features and performance to the LattePanda Alpha but with Quad-core CPU instead of dual and comes in a case + VESA mount. DDR4 memory and M.2 SATA SSD upgradable. No arduino. 10Watts.


Re: Mach2 Slew Speed, Power, and Voltage Question #Mach2GTO

Kenneth Tan
 

I find the i5 and i7s power hungry if you are using batteries . Consider the M series processors or a celeron. 

Try the latte panda alpha running win 10 pro
More than adequate . Powers off a usb c PD or if u want a 12 v supply.  Relatively cheap too . 

For those who love to tinker this will work too.... has a aduino and gpio ports




On Tue, 30 Mar 2021 at 12:18, Tom Blahovici <tom.va2fsq@...> wrote:
Hi
BTW, if you are using an Intel NUC, 19V is not necessary. They work just fine at 12V as per specs.
My NUC is an i5 with SSD, and thurnderbird 3 to 10G Base T adapter. It works reliably with no issues.
Might save a little space and battery power.
Tom


Re: Refining Pempro PEC curves?

Ray Gralak
 

Hi Tom,

Refinements can help some other mount types with PEC implementations that are not very good, but you should not need to refine an A-P mount's curve. Can you post the before (PEM disabled) and after PEC logs (with the new PEC table uploaded and PEM enabled)?

-Ray

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Tom Blahovici
Sent: Monday, March 29, 2021 9:00 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Refining Pempro PEC curves?

Hi
I'm trying to understand how the refine process works. There are examples in the Pempro documentation, but they
never show the resulting "Green curve".
So the idea is to do the following.
Take the initial PEC curves and upload them to the mount. Run the analysis again, and then add this to the first
curve. What would that do? It's not well explained.
Explanations?
Tom


Re: Mach2 - Pollux not in correct position

Eric Weiner
 

It’s not just Pollux


Re: Mach2 - Pollux not in correct position

Jeffc
 

Apologies for the lousy fuzzy picture..



On Mar 29, 2021, at 9:29 PM, Jeff Crilly <jeffcrilly@...> wrote:

Also out of curiosity I checked the CP3 / 1100 keypad which I loaded last week with a fresh DB after battery replacement.  

It is correct. 

<image.jpg>




On Mar 29, 2021, at 8:11 PM, Mike Pigney via groups.io <mpigney@...> wrote:

Check out Porrima to see if it is also incorrect.

Mike


Re: Mach2 - Pollux not in correct position

Jeffc
 

Also out of curiosity I checked the CP3 / 1100 keypad which I loaded last week with a fresh DB after battery replacement.  

It is correct. 





On Mar 29, 2021, at 8:11 PM, Mike Pigney via groups.io <mpigney@...> wrote:

Check out Porrima to see if it is also incorrect.

Mike


Re: Mach2 Slew Speed, Power, and Voltage Question #Mach2GTO

Tom Blahovici
 

Hi
BTW, if you are using an Intel NUC, 19V is not necessary. They work just fine at 12V as per specs.
My NUC is an i5 with SSD, and thurnderbird 3 to 10G Base T adapter. It works reliably with no issues.
Might save a little space and battery power.
Tom


Re: Mach2 Slew Speed, Power, and Voltage Question #Mach2GTO

Kenneth Tan
 

I used these and they work well for me. Comes under various brand names but all look exactly the same. I suspect they are from the same manufacturer. 



On Tue, 30 Mar 2021 at 11:42, John Upton <upton@...> wrote:
Hi again,

   Well, I made the decision to go for Option #3 using the 12 volt to 24 volt DC-DC converter. I was sort of forced into the decision after doing quite a bit of testing of Option #1, using the raw battery voltage (~13.3 v).

   I found that running at 13.3 volts, the CP5 control box was very sensitive to voltage fluctuations. If I applied power to the mount first and then turned on the (high end) NUC mount PC, the mount's power LED would immediately turn amber even just sitting at park. I could not slew at full speed either. The CP5 would indicate a motor stall during the high speed slews and show the amber LED again. The voltage fluctuation was short enough to not show up with my digital multimeter and was not detected by the battery monitor I use with the battery. (I did not bother hooking up an oscilloscope to see how long the voltage droop lasts but expect it is very short.)

   So, I installed the 24 volt DC-DC converter. This solved the high speed slew issue and also the voltage fluctuation when powering on the NUC but introduced another issue I will need to solve. My interface to the battery is via a typical automotive 12 volt socket. The plug portion has just enough resistance in the spring loaded tip that it overheats when performing a long slew at 1800X. Doing several long slews in succession, I actually melted part of the plug without blowing the 10 Amp fuse in the plug tip. I will need to rework my battery box to provide a direct PowerPole connection bypassing the 12 v automotive socket to PowerPole pigtail adapter I am using for now.

   The net of all that is that I will use the mount at 24 volts but will need to beef up my battery interface before using 1800X slews. For now, I'll use 1000X until I can wire in a dedicated 24 v PowerPole socket straight to the battery.


John


Refining Pempro PEC curves?

Tom Blahovici
 

Hi
I'm trying to understand how the refine process works. There are examples in the Pempro documentation, but they never show the resulting "Green curve".
So the idea is to do the following.
Take the initial PEC curves and upload them to the mount. Run the analysis again, and then add this to the first curve. What would that do? It's not well explained.
Explanations?
Tom


Re: Mach2 Slew Speed, Power, and Voltage Question #Mach2GTO

John Upton
 

Hi again,

   Well, I made the decision to go for Option #3 using the 12 volt to 24 volt DC-DC converter. I was sort of forced into the decision after doing quite a bit of testing of Option #1, using the raw battery voltage (~13.3 v).

   I found that running at 13.3 volts, the CP5 control box was very sensitive to voltage fluctuations. If I applied power to the mount first and then turned on the (high end) NUC mount PC, the mount's power LED would immediately turn amber even just sitting at park. I could not slew at full speed either. The CP5 would indicate a motor stall during the high speed slews and show the amber LED again. The voltage fluctuation was short enough to not show up with my digital multimeter and was not detected by the battery monitor I use with the battery. (I did not bother hooking up an oscilloscope to see how long the voltage droop lasts but expect it is very short.)

   So, I installed the 24 volt DC-DC converter. This solved the high speed slew issue and also the voltage fluctuation when powering on the NUC but introduced another issue I will need to solve. My interface to the battery is via a typical automotive 12 volt socket. The plug portion has just enough resistance in the spring loaded tip that it overheats when performing a long slew at 1800X. Doing several long slews in succession, I actually melted part of the plug without blowing the 10 Amp fuse in the plug tip. I will need to rework my battery box to provide a direct PowerPole connection bypassing the 12 v automotive socket to PowerPole pigtail adapter I am using for now.

   The net of all that is that I will use the mount at 24 volts but will need to beef up my battery interface before using 1800X slews. For now, I'll use 1000X until I can wire in a dedicated 24 v PowerPole socket straight to the battery.


John


Re: Mach2 - Pollux not in correct position

Mike Pigney
 

Check out Porrima to see if it is also incorrect.

Mike


Re: Mach2 - Pollux not in correct position

Eric Weiner
 

Ditto with my keypad. 



Re: Mach2 - Pollux not in correct position

Jeffc
 

So.. out of curiosity I just went outside and checked the new Mach2 keypad for the RA / Dec of Pollux 
(note this is just calling up the star from the DB then pressing < to get the RA / Dec... no goto.)

I got the same seemingly incorrect coordinates...  

Pollux-on-Mach2-Keypad.jpg



On Mon, Mar 29, 2021 at 5:59 PM Mike Pigney via groups.io <mpigney=yahoo.com@groups.io> wrote:
Hi Liam,

 The coordinates do not match. It puts the scope very close to Porrima.

They are the following:

RA 12h 41m 39s
DEC -01 26' 57"


Re: Mach2 - Pollux not in correct position

Mike Pigney
 

Hi Liam,

 The coordinates do not match. It puts the scope very close to Porrima.

They are the following:

RA 12h 41m 39s
DEC -01 26' 57"


Re: Data base corruption

Jack Huerkamp
 

George,

 

Thanks.

 

Jack

 

Jack Huerkamp

Jack's Astro Accessories, LLC

38388 Pine Street

Pearl River, LA 70452-5192

985-445-5063

mallincamusa@...

www.mallincamusa.com

30.37N  89.76W

 

All of us get lost in the darkness.
Dreamers learn to steer by the stars.

………………………………….Neil Peart

 

 

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of George
Sent: Monday, March 29, 2021 5:04 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Data base corruption

 

Jack

 

It is a function of age primarily.   Environment can affect it somewhat.

 

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: Monday, March 29, 2021 12:02 PM
To: main@ap-gto.groups.io
Cc: mallincamusa@...
Subject: Re: [ap-gto] Data base corruption

 

George,

 

Is battery life a function of just age (how old the battery is) or does using the keypad more to locate DSOs shorten the life span?  I rarely use the keypad to locate targets, using my planetarium program instead.

 

Jack

 

Jack Huerkamp

Jack's Astro Accessories, LLC

38388 Pine Street

Pearl River, LA 70452-5192

985-445-5063

mallincamusa@...

www.mallincamusa.com

30.37N  89.76W

 

All of us get lost in the darkness.
Dreamers learn to steer by the stars.

………………………………….Neil Peart

 

 

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of George
Sent: Monday, March 29, 2021 12:03 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Data base corruption

 

Jack,

 

It never hurts to replace it every 4-5 years before the database dies.

 

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: Monday, March 29, 2021 11:57 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Data base corruption

 

George,

 

This is good to know.  My replacement battery arrives by the end of the week and I will be swapping it out next weekend.

 

Jack

 

Jack Huerkamp

Jack's Astro Accessories, LLC

38388 Pine Street

Pearl River, LA 70452-5192

985-445-5063

mallincamusa@...

www.mallincamusa.com

30.37N  89.76W

 

All of us get lost in the darkness.
Dreamers learn to steer by the stars.

………………………………….Neil Peart

 

 

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of George
Sent: Monday, March 29, 2021 9:25 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Data base corruption

 

Jeff,

 

You should be good for 20 to 30 seconds…no rush, but I wouldn’t go get a cup of coffee while changing the battery.   <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 Jeffc
Sent: Sunday, March 28, 2021 12:50 AM
To: main@ap-gto.groups.io
Cc: mallincamusa@...
Subject: Re: [ap-gto] Data base corruption

 

I just replaced a keypad battery (and a cord) (and I have another keypad which will also get a new battery as soon as I get some time). 

  

It seemed the DB did not get lost when I swapped the battery... tho i might not have checked the Messier objects.   

How long will the keypad memory persist without a battery?

 

-jeff

 

On Sat, Mar 27, 2021 at 8:03 PM Jack Huerkamp <Mallincamusa@...> wrote:

Jeff,

 

George at AP told me if I place the new battery next to the original one and quickly swap them out, the databases will not be lost.  I do not know how quick I need to be.  I guess I will find out as the battery in the keypad has not died, but I want to change it before it does.  BTW the battery for my keypad was $25 plus shipping.

 

Jack

 

Jack Huerkamp

Jack's Astro Accessories, LLC

38388 Pine Street

Pearl River, LA 70452-5192

985-445-5063

mallincamusa@...

www.mallincamusa.com

30.37N  89.76W

 

All of us get lost in the darkness.
Dreamers learn to steer by the stars.

………………………………….Neil Peart

 

 

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jeff B
Sent: Saturday, March 27, 2021 9:59 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Data base corruption

 

Just had this happen to me as well.  

 

The custom battery is a bit expensive but once in every 10 to 12 years ain't too bad.  Removal and installation of the battery requires care but is straightforward as it reloading the database, though it can take a while.

 

I also went to the .19 firmware version.  Jury is still out on that one.

 

Jeff

 

On Sat, Mar 27, 2021 at 9:41 PM Jack Huerkamp <Mallincamusa@...> wrote:

It is possible that the keypad battery has died.  I understand when it does, the stars and planet databases still work, but catalogs like the Messier and NGC objects get corrupted.  I just ordered a battery for my keypad before it dies.  Once it does, then you have to replace the battery and then reload the DSO databases.

 

Yours truly,

 

Jack

 

Jack Huerkamp

Jack's Astro Accessories, LLC

38388 Pine Street

Pearl River, LA 70452-5192

985-445-5063

mallincamusa@...

www.mallincamusa.com

30.37N  89.76W

 

All of us get lost in the darkness.
Dreamers learn to steer by the stars.

………………………………….Neil Peart

 

 

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of paulsimonjones
Sent: Friday, March 26, 2021 8:56 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Data base corruption

 

Starting to reuse my Mach 1 mount after a few years and have found that although the stars and sol data base is ok. The messer database is corrupted - with things like Crab Nebula is in Ursa minor. Any one seen this behavior?

 

Image removed by sender.

Virus-free. www.avg.com


Re: Adding Primaluce Labs ECCO2 for Environmental sensor?

Wayne Hixson
 

Fillipo at Primaluce says the ASCOM driver is an Observing Conditions driver. I ordered one, I’ll post when I get it

Wayne


On Mar 29, 2021, at 2:38 PM, annaski <annaski@...> wrote:

If anyone has this working reliably with APPM please post, as I am also looking at this.

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