Date   

Re: Mach2GTO - No Internal cable routing?

Clayton Yendrey
 
Edited

This is what I just ordered; as set of 3 each (male/female) XT60 pigtails.

Amazon.com: Upgrades XT60 Connectors 12awg 5.9inch Wire with Solder Point Cover (3 Female + 3 Male) 3D Printer Power Supply Extension: Electronics

All that is needed is to crimp the respective Anderson Powerpole connectors to them.


Re: Mach2GTO - No Internal cable routing?

Dale Ghent
 

Yes however XT60 to PowerPole remains a bit of a unicorn out there in the land of ready-made PowerPole adapters. I don’t know why since both are popular, but that’s the case.

The last time I looked for a commercially-available XT60 adapter was a few months ago (for a friend in the same Pegasus UPBv2 predicament) and the only one I found was a seller on Amazon, with weeks of lead time and a not so great price. 

On May 9, 2021, at 16:55, mjb87 via groups.io <mjb87@...> wrote:

I have concluded that being a serious amateur astronomer means learning how to crimp connectors.  So I've down Anderson powerpole connectors to accommodate the Mach2, Molex connectors for the ExploraDome and JST-PH connectors for the fan in my ZWO camera. It's not hard. Just takes some practice.

If you want to buy off-the-shelf you can often find what you need on Amazon. For example this:

https://www.amazon.com/Valley-Enterprises-Straight-Anderson-Powerpole/dp/B07GHB6X64/


Re: Mach2GTO - No Internal cable routing?

mjb87@...
 
Edited

I have concluded that being a serious amateur astronomer means learning how to crimp connectors.  So I've done Anderson powerpole connectors to accommodate the Mach2, Molex connectors for the ExploraDome and JST-PH connectors for the fan in my ZWO camera. It's not hard. Just takes some practice.

If you want to buy off-the-shelf you can often find what you need on Amazon. For example this (for the PPADV):

https://www.amazon.com/Valley-Enterprises-Straight-Anderson-Powerpole/dp/B07GHB6X64/


Re: Mach2GTO - No Internal cable routing?

Dale Ghent
 

I could consider crimping up a bunch of XT60 to PowerPole adapters and making them available to the group. 

On May 9, 2021, at 15:59, Dominique <d.h.durand@...> wrote:



I have AP Mach2 and Pegasus Powerbox V2 and as it was difficult for me to find an XT60 cable (Powerbox) to Anderson Powerpoles (Mach2) I bought XT60, Anderson power poles and cable and I made myself the cable which is fine.

Dominique


Re: Mach2GTO - No Internal cable routing?

Marcelo Figueroa
 

I use these two cables (male and female), one for the power supply and one for the Pegasus Powerbox (Advance version).

Note that the connectors are not mounted the right way for the Mach2, but it is very easy to correct that.


https://www.amazon.com/gp/product/B07X3ZDLT8/ref=ppx_od_dt_b_asin_title_s01?ie=UTF8&th=1


Re: Mach2GTO - No Internal cable routing?

Dominique
 

I have AP Mach2 and Pegasus Powerbox V2 and as it was difficult for me to find an XT60 cable (Powerbox) to Anderson Powerpoles (Mach2) I bought XT60, Anderson power poles and cable and I made myself the cable which is fine.

Dominique


Re: Mach2GTO - No Internal cable routing?

Clayton Yendrey
 
Edited

It sounds like the Mach2 has what I need - I have a Pegasus UPBv2 on the OTA that handles all the on OTA distribution.  I use / need the internal routing to get a USB3 'backbone' to the UPBv2.  The problem is/may be the fact that the UPBv2 uses a proprietary power plug from its power supply.  I"d have to look up the specs and also determine what/where the plug itself is available from or get another cable/power supply from Pegasus as a sacrificial parts source.  Do you know if anyone else is using a UPBv2 through a Mach2?  I believe the UPBv2 is rated/can distribure up to 20 amps total which is likely why the non standard power supply/plug assembly.


Re: Mach2GTO - No Internal cable routing?

mjb87@...
 

I run my own cables through my 1100.  I was worried about the more limited through the mount cabling ability of the Mach2. In the end, it has been a non-issue with the Mach2. With a Pegasus PB Advanced, I can handle all of my "above the mount" power and data needs while using the single 12v and USB3 through-mount capabilities. This includes main camera, guide camera, camera rotator, Flip-Flat, dew heaters, etc.  However, I run the mount itself with a dedicated power supply but since that is "below the mount" it doesn't require through-mount access.

Bottom line: you can live with the Mach2 capabilities quite easily these days given the advanced hubs available.  Of course, YMMV.


Re: Connecting ASIAIR Pro to a CP4 - Mach1

Lee Decovnick
 

Hi all,

Real progress and some more questions using the ASI AIR PRO. First the good news,  I used a FIDI USB cable and it connected the USB port to the ASI Air Pro first time. Now I can also use my iPad and my Win 10 Blue Stack emulation at the same and the speed is pretty decent. I used the ASI AIR Pro app to plate solve the Polar Alignment on the Mach 1  ... a nice peice of software. Dec took one minute to get to 02",  but when I tightened the RA lever there was significant shift.  got it on the sixth attempt.  

These CMOS cameras are really nice, except I ended up adding 2 inches to my focuser tube to come to focus, I guess I could also use a diagonal perhaps less flexion, suggestions welcome.. Oh, I shoot with Stellarvue 115mm f/7  scope. 800mm focal length.

The  first Mach 1 question I have for the group is:   Do folks use the hand controller to set up park and reset the R/A and Dec THEN sync to the ASIAIR Pro? 

How exactly do integrate Sky Safari with the Mach 1 and ASI AIR RPO date loop? 

Thanks again for the positive suggestions....   

Lee


Re: Mach2GTO - No Internal cable routing?

KHursh
 

There is a single power connector and a single USB3 connector for through-the-mount cabling. My PC and power supply plug into the back of the RA axis, then I connect a PowerBox to the power and USB on the top of the DEC axis which distributes power and data to the rest of the rig.


Re: Mach2GTO - No Internal cable routing?

Roland Christen
 

There are two cables in the Mach2, one USB3 and one 12 volt power cable. If you want to run your own cables, then the Mach2 is not for you. The 1100 mount has huge hollow axes in which you can run any amount of cabling you wish.

Rolando



-----Original Message-----
From: Clayton Yendrey <cyendrey@...>
To: main@ap-gto.groups.io
Sent: Sun, May 9, 2021 10:58 am
Subject: [ap-gto] Mach2GTO - No Internal cable routing?

For some reason I just noticed that there is no mention of internal cable routing option for the Mach2 on the AP website.  Please clarify - does the Mach2 have this capability or not?
I'd be really disappointed if it did not, since even mounts a quarter of this price point have this feature now...  
 
Thanks in advance!

--
Roland Christen
Astro-Physics


Mach2GTO - No Internal cable routing?

Clayton Yendrey
 

For some reason I just noticed that there is no mention of internal cable routing option for the Mach2 on the AP website.  Please clarify - does the Mach2 have this capability or not?

I'd be really disappointed if it did not, since even mounts a quarter of this price point have this feature now...  

 

Thanks in advance!


Re: Astro-Physics Cap

Jeff B
 

👍👌

On Sun, May 9, 2021 at 9:58 AM David Johnson <dajohns37@...> wrote:
We bought that property partly because of the dark skies, but I learned from this that dark skies are just part of the equation.  It’s pretty hilly down there, at least for Ohio, and it’s hard to find a good clear spot for a setup without dragging a bunch of equipment up a ridge by hand.  Even on top of the ridges, there are a lot of trees.  However, the good news is that our new residence has reasonably dark skies and we enjoy that property for a lot of other activities, so it worked out fine.  I do some limited imaging with my more portable equipment down there, and I’ll probably do more when I retire, which will happen very soon.

Beautiful country, though.  In mid-April, the redbuds and the wildflowers are spectacular.


Re: Astro-Physics Cap

David Johnson
 

We bought that property partly because of the dark skies, but I learned from this that dark skies are just part of the equation.  It’s pretty hilly down there, at least for Ohio, and it’s hard to find a good clear spot for a setup without dragging a bunch of equipment up a ridge by hand.  Even on top of the ridges, there are a lot of trees.  However, the good news is that our new residence has reasonably dark skies and we enjoy that property for a lot of other activities, so it worked out fine.  I do some limited imaging with my more portable equipment down there, and I’ll probably do more when I retire, which will happen very soon.

Beautiful country, though.  In mid-April, the redbuds and the wildflowers are spectacular.


Re: Astro-Physics Cap

mjb87@...
 

My old firm had an informal competition for the most exotic location where a cap with our logo was photographed. We had photos from remote islands in the Pacific, tops of mountains, etc.  One of my European colleagues however took the prize -- he had a friend who was an astronaut who took a photo of the cap on his head in the International Space Station.

(For the record, NASA and ESA does not endorse this and we were not allowed to have a permanent copy of the photo.)


Re: Shooting with AP 10" Mak on Mach2 mount

Kenneth Tan
 

Is this feature in the latest firmware update? i have the older keypad which i have updated for use with the gtocp5. 

On Sun, 9 May 2021 at 06:46, Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
Drift compensation is not in APCC, but sky modeling is, and can be used to also create drift compensation for any and all points in the sky.

Measuring the actual drift and then using that to create a counter-drift is strictly a new keypad feature that we put into the latest keypads. Drift is measured in both axes and adjusts the tracking rate dynamically as you track and guide on the object. It is not the same as traditional modeling, although a model program is also in the keypad for those who want to make partial or full sky models using just the keypad.

We give you a number of tools to make imaging easier and more accurate. My greatest fear is that these tools are being confused with each other, and so people miss out on some really effective way to do imaging.

Rolando

-----Original Message-----
From: KHursh via groups.io <khursh=yahoo.com@groups.io>
To: main@ap-gto.groups.io
Sent: Sat, May 8, 2021 5:35 pm
Subject: Re: [ap-gto] Shooting with AP 10" Mak on Mach2 mount

Is drift compensation a feature of APCC pro/APPM as well?

--
Roland Christen
Astro-Physics


Re: Shooting with AP 10" Mak on Mach2 mount

Roland Christen
 

Drift compensation is not in APCC, but sky modeling is, and can be used to also create drift compensation for any and all points in the sky.

Measuring the actual drift and then using that to create a counter-drift is strictly a new keypad feature that we put into the latest keypads. Drift is measured in both axes and adjusts the tracking rate dynamically as you track and guide on the object. It is not the same as traditional modeling, although a model program is also in the keypad for those who want to make partial or full sky models using just the keypad.

We give you a number of tools to make imaging easier and more accurate. My greatest fear is that these tools are being confused with each other, and so people miss out on some really effective way to do imaging.

Rolando

-----Original Message-----
From: KHursh via groups.io <khursh@...>
To: main@ap-gto.groups.io
Sent: Sat, May 8, 2021 5:35 pm
Subject: Re: [ap-gto] Shooting with AP 10" Mak on Mach2 mount

Is drift compensation a feature of APCC pro/APPM as well?

--
Roland Christen
Astro-Physics


Re: Shooting with AP 10" Mak on Mach2 mount

KHursh
 

Is drift compensation a feature of APCC pro/APPM as well?


Re: [ap-ug] Shooting with AP 10" Mak on Mach2 mount

Pete Lardizabal
 

Roland,

Impressive to say the least!

Really enjoy seeing your experimentation results… not so scary versions of “watch this”!!!

😆

Pete

On May 8, 2021, at 2:23 PM, Roland Christen via groups.io <chris1011@...> wrote:


Last night was clear enough to do some quick imaging. Now that it's galaxy season, I changed the scope form my trusty 160EDF to the longer focal length 10" Mak-Cass. I used our CCDT67 compressor to bring the focal length down to 2500mm. The image posted below is a quick snapshot of 3 x 1200 sec with the QSI camera. The main purpose last night was not to take pretty pictures, rather it was doing ongoing testing of the Mach2 mount and the modeling software.

Two problems occur when using long focal lengths. First, is how to guide properly at 2500mm in order to capture fine galaxy detail. The best way is to use off-axis guiders. That brings up the second problem, which is the small field of these guiders. Sometimes there are not any bright stars to guide on. Therefore long guide exposures are needed, but then the mount must track very accurately between exposures. That means polar alignment must be spot on, otherwise you get drift between guide exposures. If you are setting up in the field, you don't want to spend a lot of time drift aligning to get perfect polar alignment.

I wanted to see what kind of results can be achieved with poor polar alignment. Last night I offset the azimuth axis so that I was getting about 2 arc seconds per minute drift in Dec. (RA was not drifting much). The guide star that was available needed at least 5 second exposure in order to be usable. With that much Dec drift, the guider was struggling and I achieved only 0.35 arc sec RMS tracking in Dec, while the RA was producing around 0.12 arcsec.

The solution was simple: I selected the Drift Model in the keypad, measured about 10 minutes of drift data with the guider keeping the guide star on the crosshair. Then simply turned on the Drift Compensation. The guider settled down almost instantly, I was able to dial the aggressiveness down to 60%, and the guider graph started to show Dec tracking of 0.12 arc sec RMS, same as the RA. There were periods of calm where there were no corrections being sent at all for 1 - 2 minutes at a time.

This process is fast and essentially foolproof and can be repeated every hour or so to build up a drift model for that object that can be used on subsequent nights. It can be done on the fly while you are imaging without disrupting your imaging session.

Here is the result from my heavily light polluted observing site at the AP factory (remember, it's just a quickie 1 hour snapshot):

https://www.astrobin.com/1rtlj2/0/
https://www.astrobin.com/full/1rtlj2/0/

Rolando


Re: Shooting with AP 10" Mak on Mach2 mount

Roland Christen
 

These will be added to the other mount keypads at some point.

Roland

-----Original Message-----
From: dvjbaja <jpgleasonid@...>
To: main@ap-gto.groups.io
Sent: Sat, May 8, 2021 2:27 pm
Subject: Re: [ap-gto] Shooting with AP 10" Mak on Mach2 mount

Ok, I thought some new features were being added to the other keypads. 

- J

On Sat, May 8, 2021 at 12:03 PM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
It's a Mach2 mount.

Roland



-----Original Message-----
From: dvjbaja <jpgleasonid@...>
To: main@ap-gto.groups.io
Cc: main@ap-ug.groups.io <main@ap-ug.groups.io>
Sent: Sat, May 8, 2021 1:33 pm
Subject: Re: [ap-gto] Shooting with AP 10" Mak on Mach2 mount

Roland, 

Is this drift mode in the keypad updates for the 1100 and 1600 mounts?  
- J


On Sat, May 8, 2021 at 11:23 AM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
Last night was clear enough to do some quick imaging. Now that it's galaxy season, I changed the scope form my trusty 160EDF to the longer focal length 10" Mak-Cass. I used our CCDT67 compressor to bring the focal length down to 2500mm. The image posted below is a quick snapshot of 3 x 1200 sec with the QSI camera. The main purpose last night was not to take pretty pictures, rather it was doing ongoing testing of the Mach2 mount and the modeling software.

Two problems occur when using long focal lengths. First, is how to guide properly at 2500mm in order to capture fine galaxy detail. The best way is to use off-axis guiders. That brings up the second problem, which is the small field of these guiders. Sometimes there are not any bright stars to guide on. Therefore long guide exposures are needed, but then the mount must track very accurately between exposures. That means polar alignment must be spot on, otherwise you get drift between guide exposures. If you are setting up in the field, you don't want to spend a lot of time drift aligning to get perfect polar alignment.

I wanted to see what kind of results can be achieved with poor polar alignment. Last night I offset the azimuth axis so that I was getting about 2 arc seconds per minute drift in Dec. (RA was not drifting much). The guide star that was available needed at least 5 second exposure in order to be usable. With that much Dec drift, the guider was struggling and I achieved only 0.35 arc sec RMS tracking in Dec, while the RA was producing around 0.12 arcsec.

The solution was simple: I selected the Drift Model in the keypad, measured about 10 minutes of drift data with the guider keeping the guide star on the crosshair. Then simply turned on the Drift Compensation. The guider settled down almost instantly, I was able to dial the aggressiveness down to 60%, and the guider graph started to show Dec tracking of 0.12 arc sec RMS, same as the RA. There were periods of calm where there were no corrections being sent at all for 1 - 2 minutes at a time.

This process is fast and essentially foolproof and can be repeated every hour or so to build up a drift model for that object that can be used on subsequent nights. It can be done on the fly while you are imaging without disrupting your imaging session.

Here is the result from my heavily light polluted observing site at the AP factory (remember, it's just a quickie 1 hour snapshot):


Rolando

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics

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