Date   

Re: Interactions Between Keypad and APCC Orthogonality Models? #Mach2GTO #APCC #Keypad

Roland Christen
 


  • Does the APCC model erase the results of the Keypad Ortho Model or simply override it?

  • If the APCC pointing corrections are turned off, does the most recent Keypad Ortho Model once again take effect or does a new one need to be built?
  • APCC does not erase the keypad ortho model. The keypad model resides in the CP controller and is used to compensate for non-orthogonality at all times, whether an external model is used or not. Once created, it does not turn off. External models will actually use it without knowing that it's there. It is as if the scope is now perfectly orthogonal, so any external model would not have any ortho component in their data.

    Rolando


    -----Original Message-----
    From: John Upton <upton@...>
    To: main@ap-gto.groups.io
    Sent: Tue, Sep 14, 2021 9:56 pm
    Subject: [ap-gto] Interactions Between Keypad and APCC Orthogonality Models? #Mach2GTO #APCC #Keypad

    Hi all,

       I am looking for some clarifications regarding the interactions / interoperability of the Ortho Model performed by the Keypad versus the pointing model created by APCC? The questions I want to understand are:

    1. I assume the APCC model takes precedence when a Keypad Ortho Model has been built. Is that correct?

    2. Does the APCC model erase the results of the Keypad Ortho Model or simply override it?

    3. If the APCC pointing corrections are turned off, does the most recent Keypad Ortho Model once again take effect or does a new one need to be built?
       For some observing and simple single object imaging sessions, I think I would like to just have the orthogonality error corrected without creating / running a normal pointing model. It would simplify / speed up plate solving on both sides of the meridian. Ideally, for a quick portable imaging session, I would prefer not to have to rerun the Keypad Ortho Model at the beginning of each session when I don't want to run APPM. I will be guiding for these sessions and since they involve only a single target, plate solving will suffice for the evening's only target.


    John

    --
    Roland Christen
    Astro-Physics


    Re: Interactions Between Keypad and APCC Orthogonality Models? #Mach2GTO #APCC #Keypad

    Roland Christen
     


    You should not simultaneously use an APCC model with the keypad model, as they do not know about each other!
    You can use them but only if you first create the keypad ortho model and load it into the CP4/5. Once that is done, it will simply make pointing for external models easier.

    What you should not do is to create a keypad ortho model after making an APCC model, since that will negate the one in APCC.

    Roland


    -----Original Message-----
    From: Ray Gralak <iogroups@...>
    To: main@ap-gto.groups.io
    Sent: Tue, Sep 14, 2021 10:52 pm
    Subject: Re: [ap-gto] Interactions Between Keypad and APCC Orthogonality Models? #Mach2GTO #APCC #Keypad

    Hi John,

    >    I am looking for some clarifications regarding the interactions / interoperability of the Ortho Model
    > performed by the Keypad versus the pointing model created by APCC? The questions I want to understand
    > are:

    You should not simultaneously use an APCC model with the keypad model, as they do not know about each other!

    -Ray

    > -----Original Message-----
    > From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of John Upton
    > Sent: Tuesday, September 14, 2021 7:56 PM
    > To: main@ap-gto.groups.io
    > Subject: [ap-gto] Interactions Between Keypad and APCC Orthogonality Models? #Mach2GTO #APCC
    > #Keypad
    >
    > Hi all,
    >
    >    I am looking for some clarifications regarding the interactions / interoperability of the Ortho Model
    > performed by the Keypad versus the pointing model created by APCC? The questions I want to understand
    > are:
    >
    >
    >
    > 1.    I assume the APCC model takes precedence when a Keypad Ortho Model has been built. Is that
    > correct?
    >
    >
    > 2.    Does the APCC model erase the results of the Keypad Ortho Model or simply override it?
    >
    >
    > 3.    If the APCC pointing corrections are turned off, does the most recent Keypad Ortho Model once again
    > take effect or does a new one need to be built?
    >
    >    For some observing and simple single object imaging sessions, I think I would like to just have the
    > orthogonality error corrected without creating / running a normal pointing model. It would simplify / speed up
    > plate solving on both sides of the meridian. Ideally, for a quick portable imaging session, I would prefer not to
    > have to rerun the Keypad Ortho Model at the beginning of each session when I don't want to run APPM. I will
    > be guiding for these sessions and since they involve only a single target, plate solving will suffice for the
    > evening's only target.
    >
    >
    > John
    >







    --
    Roland Christen
    Astro-Physics


    Re: Interactions Between Keypad and APCC Orthogonality Models? #Mach2GTO #APCC #Keypad

    Roland Christen
     

    The CP4/5 controllers are totally independent of anything that APCC does. APCC models are not loaded into the CP controllers.

    The way it works is like this:

    1) if you do NOT create an Ortho model with the keypad, then APCC models will naturally create their own and compensate automatically for any non-orthogonality.

    2) if you first create an Ortho model with the keypad, that model will be loaded into the mount's CP servo controller and will therefore be active at all times. If you then create a pointing model with APCC, it will simply respond to the way the mount now points more accurately and will naturally not have an ortho model built into its own model.

    An ortho model that is created using the keypad will reside in the mount's controller at all times and be active from then on, regardless of power cycles. If you change the scope to something different that has a different orthogonality error, then you simply run the ortho routine for that setup.

    If you first model a new setup with APCC and then create a new ortho model with the keypad, then you will have two orthos that will negate each other.

    Roland


    -----Original Message-----
    From: John Upton <upton@...>
    To: main@ap-gto.groups.io
    Sent: Tue, Sep 14, 2021 9:56 pm
    Subject: [ap-gto] Interactions Between Keypad and APCC Orthogonality Models? #Mach2GTO #APCC #Keypad

    Hi all,

       I am looking for some clarifications regarding the interactions / interoperability of the Ortho Model performed by the Keypad versus the pointing model created by APCC? The questions I want to understand are:

    1. I assume the APCC model takes precedence when a Keypad Ortho Model has been built. Is that correct?

    2. Does the APCC model erase the results of the Keypad Ortho Model or simply override it?

    3. If the APCC pointing corrections are turned off, does the most recent Keypad Ortho Model once again take effect or does a new one need to be built?
       For some observing and simple single object imaging sessions, I think I would like to just have the orthogonality error corrected without creating / running a normal pointing model. It would simplify / speed up plate solving on both sides of the meridian. Ideally, for a quick portable imaging session, I would prefer not to have to rerun the Keypad Ortho Model at the beginning of each session when I don't want to run APPM. I will be guiding for these sessions and since they involve only a single target, plate solving will suffice for the evening's only target.


    John

    --
    Roland Christen
    Astro-Physics


    Re: Dovelm162 springs too short or assembled wrong?

     

    Hello Tom,

     

    We are looking into this. Thank you for bringing it to our attention.

     

    Clear Skies,

    Marj Christen

    Astro-Physics

    11250 Forest Hills Road

    Machesney Park, IL 61115

    Phone: 815-282-1513

    www.astro-physics.com

     

    From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Tom Blahovici
    Sent: Wednesday, September 15, 2021 10:16 AM
    To: main@ap-gto.groups.io
    Subject: Re: [ap-gto] Dovelm162 springs too short or assembled wrong?

     

    That's interesting but the saddle is not new. Since I have to seen any other complaints in the past it must be something different now. What's AP going to do about this?
    Tom


    Re: Dovelm162 springs too short or assembled wrong?

    Tom Blahovici
     

    That's interesting but the saddle is not new. Since I have to seen any other complaints in the past it must be something different now. What's AP going to do about this?
    Tom


    Re: Dovelm162 springs too short or assembled wrong?

    M Hambrick
     

    The springs look like they are 0.36" OD X 0.27" ID X 1/2" long closed and ground end compression springs as shown below. The compressed length for the 1/2" long springs is 0.21". McMaster sells a similar spring that is 5/8" long, but the compressed length is 0.39". This may not allow the dovetail clamp to fully close. If I can find one at the local hardware store I will try it out and report back.

    One caveat is that these springs are zinc plated carbon steel. It would be better to have stainless steel springs. Another caveat is that the longer spring has a thicker wire diameter and requires more force to compress it.

    Mike




    Re: Dovelm162 springs too short or assembled wrong?

    Tom Blahovici
     

    In my case they just drop down right into the path of the dovetail.
    I just tried stretching the springs a bit and that has held. I don't know if that will be ok after weeks with the scope in place.
    The springs need to be longer! Other solutions like washers prevent the clamps from clamping well enough.

    Tom


    Re: APCC Pro 1.9.0.7

    Ray Gralak
     

    Hi Craig

    I can confirm that the fixes to the DEC sign problem are now fixed in APCC Pro 1.9.0.7.
    Thanks Heaps!
    Thank you for finding and reporting this issue and confirming the fix!

    Best regards,

    -Ray

    -----Original Message-----
    From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Craig Young
    Sent: Wednesday, September 15, 2021 2:19 AM
    To: main@ap-gto.groups.io
    Subject: Re: [ap-gto] APCC Pro 1.9.0.7

    Hi Ray,
    I can confirm that the fixes to the DEC sign problem are now fixed in APCC Pro 1.9.0.7.
    Thanks Heaps!
    Craig


    Re: question about power cables (Mach 1 power cable ).

    Peter Nagy
     

    I didn't realized it comes in a set of 3 power cables using different power connectors. It will work for your Mach1. 

    Peter


    Re: question about power cables (Mach 1 power cable ).

    Peter Nagy
     

    That would work.

    Peter


    Re: Dovelm162 springs too short or assembled wrong?

    ap@CaptivePhotons.com
     

    Tom Blahovici wrote:

     

    • I have to add 4 washers to make this work. But I am concerned that they can interfere with the dovetail.

    _._,_._,_

    That’s actually on my list of nuisances to research, I was going to see if someone had a longer spring, but wasn’t sure if the cavity inside was large enough to fully close.

     

    I put bright white tape on mine at the point where the clamp clears the opening so in poor light I can tell when I have them all opened and can drop in a dovetail in Park 3.  I unscrew a bit and pull with my finger until they align; also keeps me from unscrewing so far the knob comes off.   Here the middle one I pulled to the left with my fingers, the top is where the spring quits pushing out.

     

    I was just so glad to switch to a saddle that you can drop in I didn’t worry too much – the Paramounts have to be threaded from the end, no drop-in at all.

     

    I did wonder if this is by design or just an oversight.  If someone finds a source for a longer spring (and confirms there is room), please do post.

     

    Linwood

     

     


    Re: Dovelm162 springs too short or assembled wrong?

    Tom Blahovici
     

    I have to add 4 washers to make this work. But I am concerned that they can interfere with the dovetail.


    Re: Dovelm162 springs too short or assembled wrong?

    Tom Blahovici
     


    Dovelm162 springs too short or assembled wrong?

    Tom Blahovici
     

    Hi
    I received my dovelm162 saddle plate for my new ap1100 and it appears that the springs are too short.
    If I put the saddle horizontally, the clamps hang down into the way of the telescope dovetail making it very difficult to move all 3 out of the way.
    Now I can fix this by using two of the springs or there is a washer on the knob side that if I put on the spring side it fixes it. However then it doesn't close very much.
    Something is not right here....
    Is this made by losmandy? If so. again, defective parts from them....
    Tom


    Re: APCC Pro 1.9.0.7

    Craig Young
     

    Hi Ray,
    I can confirm that the fixes to the DEC sign problem are now fixed in APCC Pro 1.9.0.7.
    Thanks Heaps!
    Craig


    Re: question about power cables (Mach 1 power cable ).

    Bill Long
     

    He has a battery box with PP.


    From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Peter Nagy <topboxman@...>
    Sent: Tuesday, September 14, 2021 8:46 PM
    To: main@ap-gto.groups.io <main@ap-gto.groups.io>
    Subject: Re: [ap-gto] question about power cables (Mach 1 power cable ).
     
    It will connect to CP3 power port but other end of the cable uses power pole connector. Do you have power source that uses power pole connectors? 

    Peter


    Re: Interactions Between Keypad and APCC Orthogonality Models? #Mach2GTO #APCC #Keypad

    Ray Gralak
     

    Hi John,

    I am looking for some clarifications regarding the interactions / interoperability of the Ortho Model
    performed by the Keypad versus the pointing model created by APCC? The questions I want to understand
    are:
    You should not simultaneously use an APCC model with the keypad model, as they do not know about each other!

    -Ray

    -----Original Message-----
    From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of John Upton
    Sent: Tuesday, September 14, 2021 7:56 PM
    To: main@ap-gto.groups.io
    Subject: [ap-gto] Interactions Between Keypad and APCC Orthogonality Models? #Mach2GTO #APCC
    #Keypad

    Hi all,

    I am looking for some clarifications regarding the interactions / interoperability of the Ortho Model
    performed by the Keypad versus the pointing model created by APCC? The questions I want to understand
    are:



    1. I assume the APCC model takes precedence when a Keypad Ortho Model has been built. Is that
    correct?


    2. Does the APCC model erase the results of the Keypad Ortho Model or simply override it?


    3. If the APCC pointing corrections are turned off, does the most recent Keypad Ortho Model once again
    take effect or does a new one need to be built?

    For some observing and simple single object imaging sessions, I think I would like to just have the
    orthogonality error corrected without creating / running a normal pointing model. It would simplify / speed up
    plate solving on both sides of the meridian. Ideally, for a quick portable imaging session, I would prefer not to
    have to rerun the Keypad Ortho Model at the beginning of each session when I don't want to run APPM. I will
    be guiding for these sessions and since they involve only a single target, plate solving will suffice for the
    evening's only target.


    John


    APCC Pro 1.9.0.7

    Ray Gralak
     

    Hello all,

    We want to announce the availability of APCC Pro 1.9.0.7.

    The changes include a couple of minor fixes:

    1. APCC Pro - Fixed - APCC can once again launch APPM and plate-solve+RCAL to the configured equipment.

    2. APCC Pro - Fixed - there was a sign error in two cases adding external declination rates from the ASCOM driver.

    You can download APCC Pro 1.9.0.7 directly using the link below or Check for Updates in APCC Pro.

    https://www.apastrosoftware.com/apcc_download/APCC_Pro_Setup_1.9.0.7.exe

    Best regards,

    -Ray


    Re: question about power cables (Mach 1 power cable ).

    Peter Nagy
     

    It will connect to CP3 power port but other end of the cable uses power pole connector. Do you have power source that uses power pole connectors? 

    Peter


    question about power cables (Mach 1 power cable ).

    nicholas
     

    I believe I need a replacement cable for my Mach 1  mount with a CP3. I therefore ordered item CABPP123SET. 

    I would like to 1) make sure this is the correct power cable that connects to the 12v port on the CP3?

    Are there other power cables that can be used that are off the shelf and can be purchased locally to where I live [San Diego.]

    Thank you!!




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