Date   

Re: Mach-2 can not reach target

Roland Christen
 

Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Bill Long
 

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Roland Christen
 

I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Bill Long
 

There is a heater you can turn on in the ZWO driver to prevent dew.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Konstantin von Poschinger <KPoschinger@...>
Sent: Monday, August 17, 2020 4:24 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Hi Roland and Howard,

I stopped imaging cause clouds went in. Then I slewed around in differen ways. From CW up to CCW down on the other side of the meridian and also from CWup on one side to CW up n the other side of the meridian. All went fine! No more errors! Thanks that is it in the moment for me.
Here is on image I sed to you separate on your aol address. The combination is quite good. The small pixels and the sony sensor are really great. The dew is a small problem with the ASI.

Konstantin


Am 18.08.2020 um 00:20 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011@...>:


I have ASI6200 with a 7 position filter wheel attached behind the flattener.
I would love to see how that works. I've been thinking about a QHY 600 camera.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 4:46 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin

<IMG_2228.jpeg>
Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.

<IMG_2228.jpeg>


Re: Mach-2 can not reach target

Bill Long
 

Nailing down the spacing gets difficult as well, since the tilt is present. Solving the tilt is a challenge when the spacing is not deadly accurate. So you end up in this vicious cycle. 

I decided to put the camera on a flatfield DK, and I have most of the tilt solved. Then I will try again on the TCC when the camera is fairly well tamed to begin with. big chip, really small pixels, so it is pretty brutal to get dialed in on fast optics.

I added 2.3mm to the spacing published for the Quad TCC and that seemed to be the point of least remaining curvature. I could not get the far edges to cooperate though so I may still have more work to do.  


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Dale Ghent <daleg@...>
Sent: Monday, August 17, 2020 4:23 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 

I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011@...>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>





Re: Mach-2 can not reach target

Konstantin von Poschinger
 

Hi Roland and Howard,

I stopped imaging cause clouds went in. Then I slewed around in differen ways. From CW up to CCW down on the other side of the meridian and also from CWup on one side to CW up n the other side of the meridian. All went fine! No more errors! Thanks that is it in the moment for me.
Here is on image I sed to you separate on your aol address. The combination is quite good. The small pixels and the sony sensor are really great. The dew is a small problem with the ASI.

Konstantin


Am 18.08.2020 um 00:20 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011@...>:


I have ASI6200 with a 7 position filter wheel attached behind the flattener.
I would love to see how that works. I've been thinking about a QHY 600 camera.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 4:46 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin

<IMG_2228.jpeg>
Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.

<IMG_2228.jpeg>


Re: Mach-2 can not reach target

Dale Ghent
 

I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@aol.com> via groups.io <chris1011=aol.com@groups.io> wrote:


I have ASI6200 with a 7 position filter wheel attached behind the flattener.
I would love to see how that works. I've been thinking about a QHY 600 camera.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@T-Online.de>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 4:46 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin

<IMG_2228.jpeg>
Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@aol.com> via groups.io <chris1011=aol.com@groups.io>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@T-Online.de>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@astro-physics.com>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem. This is easily set in APCC.

<IMG_2228.jpeg>


Re: Mach-2 can not reach target

Roland Christen
 

APCC can be set up to work this way already.
The other issues are new to the CP5 Mach2 and will be dealt with in new firmware that I am testing over the next couple of days.

Rolando

-----Original Message-----
From: Horia <ATM@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 5:44 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hi Roland,
 
>>The CP5 has a built-in encoder limit which turns the mount off and parks it
>>when the scope tracks approximately 1 minute past the meridian. This limit
>>comes up as default ON when you initialize the mount. We put this into our
>>latest CP firmware to solve the problem of users that let the mount track past
>>the meridian unattended and eventually crash the scope into the pier.
>>These limits are independent of any limits set in APCC at this point.
 
I would like to suggest a user friendlier approach, based on the following order of events:
 
1.     *   First the mount will cross the meridian.
2.     *  Sometime after the meridian, the image acquisition software (the automation software) sees that the mount is past the meridian and, between two acquisition frames, will flip the mount, by issuing a GoTo command to the actual target coordinates or by sending a SetSideOfPier command.
3.    * If – and only if – something goes wrong (the PC crashed, the automation software has a bug, the user forgot to setup something) the mount will eventually hit a meridian limit and will stop tracking.
 
For this to work, it would be great to have the possibility to send to the CP5, during the initialization process, not only a flag "Meridian Limits On/Off" but also a value for the meridian limit, in minutes-of-time past meridian. To be sure that this limit will work also in case the PC crashes, this should be completely independent of APCC.
 
Kind regards,
Horia


Re: Mach-2 can not reach target

Horia
 

Hi Roland,

 

>>The CP5 has a built-in encoder limit which turns the mount off and parks it

>>when the scope tracks approximately 1 minute past the meridian. This limit

>>comes up as default ON when you initialize the mount. We put this into our

>>latest CP firmware to solve the problem of users that let the mount track past

>>the meridian unattended and eventually crash the scope into the pier.

>>These limits are independent of any limits set in APCC at this point.

 

I would like to suggest a user friendlier approach, based on the following order of events:

 

1.     *   First the mount will cross the meridian.

2.     *  Sometime after the meridian, the image acquisition software (the automation software) sees that the mount is past the meridian and, between two acquisition frames, will flip the mount, by issuing a GoTo command to the actual target coordinates or by sending a SetSideOfPier command.

3.    * If – and only if – something goes wrong (the PC crashed, the automation software has a bug, the user forgot to setup something) the mount will eventually hit a meridian limit and will stop tracking.

 

For this to work, it would be great to have the possibility to send to the CP5, during the initialization process, not only a flag "Meridian Limits On/Off" but also a value for the meridian limit, in minutes-of-time past meridian. To be sure that this limit will work also in case the PC crashes, this should be completely independent of APCC.

 

Kind regards,

Horia


Re: Mach-2 can not reach target

Bill Long
 

Well worth the money. The sensors arent perfectly square, so having a method to adjust them is pretty crucial. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 3:20 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 

I have ASI6200 with a 7 position filter wheel attached behind the flattener.
I would love to see how that works. I've been thinking about a QHY 600 camera.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 4:46 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin


Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.


Re: Mach-2 can not reach target

Roland Christen
 


I have ASI6200 with a 7 position filter wheel attached behind the flattener.
I would love to see how that works. I've been thinking about a QHY 600 camera.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 4:46 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin


Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.


Re: Mach-2 can not reach target

Bill Long
 

Nice looking rig. Love my Eagle pier my Mach 1 rides on. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Konstantin von Poschinger <KPoschinger@...>
Sent: Monday, August 17, 2020 2:46 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin


Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.


Re: Mach-2 can not reach target

Konstantin von Poschinger
 

Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin


Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.


Re: Mach-2 can not reach target

Roland Christen
 


Then I send the $SLD0# command.
That is not a valid command.

Roland


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 4:29 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hi Howard,

I just started my mount. The first thing I saw a red blinking singn and in the error log window it says that the RA limits has reached. I tryed to clear it. It won’t. Then I send the $SLD0# command. It wont clear either. I have to do the find home. After that and clearing the error it went fine. I am now imaging from a cw up position. 

Konstantin

Am 17.08.2020 um 23:09 schrieb Howard Hedlund <howard@...>:

Hi Konstantin!

$SLD0#  won't do anything since it is not a valid command in the command set.  :LR0#  is the proper command, beginning with a colon  :  not a $ sign.  By the way, that is a zero, not a capital O.


Re: Mach-2 can not reach target

Konstantin von Poschinger
 

Hi Howard,

I just started my mount. The first thing I saw a red blinking singn and in the error log window it says that the RA limits has reached. I tryed to clear it. It won’t. Then I send the $SLD0# command. It wont clear either. I have to do the find home. After that and clearing the error it went fine. I am now imaging from a cw up position. 

Konstantin

Am 17.08.2020 um 23:09 schrieb Howard Hedlund <howard@...>:

Hi Konstantin!

$SLD0#  won't do anything since it is not a valid command in the command set.  :LR0#  is the proper command, beginning with a colon  :  not a $ sign.  By the way, that is a zero, not a capital O.


Re: Mach-2 can not reach target

Howard Hedlund
 

Hi Konstantin!

$SLD0#  won't do anything since it is not a valid command in the command set.  :LR0#  is the proper command, beginning with a colon  :  not a $ sign.  By the way, that is a zero, not a capital O.


Re: Mach-2 can not reach target

Roland Christen
 


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.


Re: Mach-2 can not reach target

Konstantin von Poschinger
 

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.


Re: Mach-2 can not reach target

Howard Hedlund
 

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.


Re: Mach-2 can not reach target

Roland Christen
 

The :LRO# limits are not set at the meridian, they are set with the scope completely upside down and they prevent the scope from wrapping around and causing internal cord wrap. DO NOT turn these limits off!

Roland



-----Original Message-----
From: Howard Hedlund <howard@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 2:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Correction:  Sending $LR0#  and $LR2#  is for the ENCODER limits, not the internal limits.  Turn the internal limits off by sending  :LR0#.  :LR2#  turns them back on.

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