Date   

Re: Re Hand Controller

anthony funnell
 

Thanks chuck but have replaced the cable with one I had unless both are faulty?? I gues it may just be the hand pad -Tony

On 12 July 2016 at 15:02, 'Chuck Shaw' candcshaw@... [SiTechservo] <SiTechservo@...> wrote:
 

Hi Anthony!

 

Sometimes erratic handpad behavior is due to a problem with the modular connectors on the cable to the handpad (either end).    It is a simple matter to crimp on new modular connectors.  You can get them and the crimping tool at places like Radio Shack.     Be sure the order and orientation of the wires is the same for the replacement connector as the one its replacing!

 

Chuck

 

From: SiTechservo@... [mailto:SiTechservo@...]
Sent: Tuesday, July 12, 2016 9:39 AM
To: SiTechservo@...
Subject: [SiTechservo] Re Hand Controller

 

 

Hi -I have a Mesu 200 and the hand controller has stopped working normally  The virtual hand pad on the computer is fine but now the wired hand pad does not respond to Left arrow commands and the top R key moves the mount right - also the central key now does not alter from guide to slew - I have cleaned the contacts and the dealer is attempting to replace the wire hand set but odd the function of the keys has altered - any ideas? - thanks Tony



Re: Re Hand Controller

Chuck
 

Hi Anthony!

 

Sometimes erratic handpad behavior is due to a problem with the modular connectors on the cable to the handpad (either end).    It is a simple matter to crimp on new modular connectors.  You can get them and the crimping tool at places like Radio Shack.     Be sure the order and orientation of the wires is the same for the replacement connector as the one its replacing!

 

Chuck

 

From: SiTechservo@... [mailto:SiTechservo@...]
Sent: Tuesday, July 12, 2016 9:39 AM
To: SiTechservo@...
Subject: [SiTechservo] Re Hand Controller

 

 

Hi -I have a Mesu 200 and the hand controller has stopped working normally  The virtual hand pad on the computer is fine but now the wired hand pad does not respond to Left arrow commands and the top R key moves the mount right - also the central key now does not alter from guide to slew - I have cleaned the contacts and the dealer is attempting to replace the wire hand set but odd the function of the keys has altered - any ideas? - thanks Tony


Re Hand Controller

anthony funnell
 

Hi -I have a Mesu 200 and the hand controller has stopped working normally  The virtual hand pad on the computer is fine but now the wired hand pad does not respond to Left arrow commands and the top R key moves the mount right - also the central key now does not alter from guide to slew - I have cleaned the contacts and the dealer is attempting to replace the wire hand set but odd the function of the keys has altered - any ideas? - thanks Tony


Re: Renishaw and Little Black Box

Luc Turbide
 

Ok I will wait, I need 2 little black boxs ship to Canada.

Luc 
 


Re: SiTech Refraction

westergren@...
 

I asked Dave Rowe about PXP using refraction corrections.  here is what he told me:

"The model is recalculated whenever anything is changed that would effect it. In other words, when you turn on or off a calibration point, select or deselect a model term, check or uncheck refraction, etc. Yes, checking Refraction later will cause it to be a part of the model, even if the calibration point was recorded when it was disabled."

So if you didn't have "refraction checked" or you used the wrong pressure setting in SiTech, you don't have to redo the whole model.  PXPAX will update automatically if you make any changes.

Don W


Re: SiTech Refraction

Sedat Bilgebay
 

Don, I was surprised to see the pressure sailing around high 970s in my place too... My place is 290 meters above sea level. 

Per was in touch with Baader recently regarding the Stickstation and his new baby, remote control usb hub ( of which I have a preproduction sample). We didn't have time to chat about the details unfortunately but I  have a feeling that he might have sold the rights to Baader or was very close to finalize a deal. They both are very nice products so I'm almost sure someone ( if not Baaader) will continue the production.

I'm very sorry since I got the news.... I wasn't able to do any imaging... but today, I will force myself to go out and do something under skies.... I'm sure Per would like this....

Sedat


Re: SiTech Refraction

jmgoldba
 

Thanks Don. I was still a little confused by your answer and looked things up. I think what you were saying is that I was confusing barometric pressure with station pressure (ref this YouTube video). Since most weather stations report barometric pressure (equivalent air pressure at sea level typically used for meteorology) you need to convert to station (actual) pressure for refraction calculations. I found this link with a formula.

Jesse


Re: SiTech focuser - questions

Christopher Erickson
 

The Toughbook laptops can still be had with native serial ports.
 
 
Christopher Erickson
Consulting Engineer
Summit Kinetics
Waikoloa, HI 96738
www.summitkinetics.com
 



From: SiTechservo@... [mailto:SiTechservo@...]
Sent: Wednesday, July 06, 2016 8:53 AM
To: SiTechservo@...
Subject: Re: [SiTechservo] SiTech focuser - questions

You might try updating the driver for the serial adapter you have.  The adapter drivers generally need updating for the latest versions of Windows.  I once had a serial adapter that worked with W7 but not W8.1 until I updated.  Now updates are for W10.  But that leaves a question about the changes that are made to work with W10 - do they ruin working with W7?

Since PC's of all (including Macs) don't have natural serial ports, we are stuck with USB to Serial adapters.

Another factor is the Chip used in the adapters.  The FTDI chis are often recommended for astro use.

Don W


---In SiTechservo@..., wrote :

I have this problem with my setup which is a real W7 pc, but with a usb serial port connected via a USB extender. It works if the usb serial port is connected directly to the pc, but not through the extender. Yet, the normal sitech program is fine either way.

My guess is the code that the servo config program uses for the serial interface is different from sitechexe. I've heard the statement many times over the years that "its just a serial port", but there are subtle differences between them and some drivers better than others.

I would suggest you borrow a pc laptop from someone - you should only need to configure the controller once.

--- Dave

On 06/07/2016 7:00 AM, steven42lee@... [SiTechservo] wrote:
Hi,

I've just bought a new SiTech servo controller to attempt to convert an RCOS focus motor and have run into an unexpected problem - the controller won't talk to the ServoConfig program.  It will talk happily to  the Focus control program, and the Rotator control program - but NOT ServoConfig (nor SiTech.exe), which is rather necessary.

My configuration where I'm doing this is a bit peculiar and may be the cause of the problem, but I can't understand why it won't work.  I am using a Macbook Pro which is running Windows 7 via VMWare.  I've used this combination for many years and never had any problems - Maxim talking to CCDs, TheSkyX talking to a Paramount, etc.  All work fine.  I use a USB to serial adaptor for the com port.  I can happily run the latest Focuser II program from the Sidereal Technology web page and it talks to the controller and drives the motor.  That part is fine.  But ServoConfig refuses to connect.  I can run ServoConfig on my little netbook running XP and that works fine - but I want to install this on a W7 machine and want to know if there are issues with doing this.  I can't understand why - it's just a serial port - but the Communicator program which is run when the focuser routine is run gives warnings about blocked threads (although it clearly works and talks to the controller).  What is different between the focus/rotator interface and ServoConfig?

At the moment, I can't get to a pure W7 computer for more testing, but there should be no difference between that and what I'm currently using.  Any advice greatly appreciated.

Secondly - and possibly for Dan - the focuser routine says that a temperature compensated option is being worked on.  How will you get temperature information to the controller?  The RCOS has a number of thermistors on it and it would be great if they could be read.  Are there any plans for an interface to allow tempera tures to be read so that focus compensation can be implemented?

Lastly, are they many users of SiTech focusers?  Looking thorough the topics on this list I can find precisely 1 mention of a focuser.  Has anybody converted an RCOS focuser (it uses a Pittman servo motor) to SiTech?  Any advice?  Thanks.

- Steve




Re: SiTech Refraction

westergren@...
 

That is sad news about Per.  Because of that do you know if Stickstation will continue to be made and sold?  I'm not sure how critical it is to SiTech accuracy, but it is an interesting device that gives accurate local conditions.

Yes, your original query resulted in a lot of behind the scenes discussion as well as in this forum.  It brought out  (to me) what settings need to be set in SiTech and in PXPAX.  For instance, I have been using SiTech for over 8 years now, using the default setting for atmospheric pressure (sea level) at my observatory at 6000 ft elevation.  So my PXP models have not been as accurate as they could be.  So set the appropriate pressure in SiTech Change Config/Misc.

Don W


---In SiTechservo@..., <bilgebay@...> wrote :

I'm glad to see that something useful came out from the discussion I've started. Thank you the time and effort you all put into this.

Unfortunately, my friend Per, the developer of Stickstation, has passed away. A very sad and shocking news indeed. He was a very nice person and he will be missed sorely. May he rest in peace!







Re: SiTech focuser - questions

westergren@...
 

You might try updating the driver for the serial adapter you have.  The adapter drivers generally need updating for the latest versions of Windows.  I once had a serial adapter that worked with W7 but not W8.1 until I updated.  Now updates are for W10.  But that leaves a question about the changes that are made to work with W10 - do they ruin working with W7?

Since PC's of all (including Macs) don't have natural serial ports, we are stuck with USB to Serial adapters.

Another factor is the Chip used in the adapters.  The FTDI chis are often recommended for astro use.

Don W


---In SiTechservo@..., <dlane@...> wrote :

I have this problem with my setup which is a real W7 pc, but with a usb serial port connected via a USB extender. It works if the usb serial port is connected directly to the pc, but not through the extender. Yet, the normal sitech program is fine either way.

My guess is the code that the servo config program uses for the serial interface is different from sitechexe. I've heard the statement many times over the years that "its just a serial port", but there are subtle differences between them and some drivers better than others.

I would suggest you borrow a pc laptop from someone - you should only need to configure the controller once.

--- Dave

On 06/07/2016 7:00 AM, steven42lee@... [SiTechservo] wrote:
Hi,

I've just bought a new SiTech servo controller to attempt to convert an RCOS focus motor and have run into an unexpected problem - the controller won't talk to the ServoConfig program.  It will talk happily to  the Focus control program, and the Rotator control program - but NOT ServoConfig (nor SiTech.exe), which is rather necessary.

My configuration where I'm doing this is a bit peculiar and may be the cause of the problem, but I can't understand why it won't work.  I am using a Macbook Pro which is running Windows 7 via VMWare.  I've used this combination for many years and never had any problems - Maxim talking to CCDs, TheSkyX talking to a Paramount, etc.  All work fine.  I use a USB to serial adaptor for the com port.  I can happily run the latest Focuser II program from the Sidereal Technology web page and it talks to the controller and drives the motor.  That part is fine.  But ServoConfig refuses to connect.  I can run ServoConfig on my little netbook running XP and that works fine - but I want to install this on a W7 machine and want to know if there are issues with doing this.  I can't understand why - it's just a serial port - but the Communicator program which is run when the focuser routine is run gives warnings about blocked threads (although it clearly works and talks to the controller).  What is different between the focus/rotator interface and ServoConfig?

At the moment, I can't get to a pure W7 computer for more testing, but there should be no difference between that and what I'm currently using.  Any advice greatly appreciated.

Secondly - and possibly for Dan - the focuser routine says that a temperature compensated option is being worked on.  How will you get temperature information to the controller?  The RCOS has a number of thermistors on it and it would be great if they could be read.  Are there any plans for an interface to allow tempera tures to be read so that focus compensation can be implemented?

Lastly, are they many users of SiTech focusers?  Looking thorough the topics on this list I can find precisely 1 mention of a focuser.  Has anybody converted an RCOS focuser (it uses a Pittman servo motor) to SiTech?  Any advice?  Thanks.

- Steve




Re: SiTech focuser - questions

Dave Lane <dlane@...>
 

I have this problem with my setup which is a real W7 pc, but with a usb serial port connected via a USB extender. It works if the usb serial port is connected directly to the pc, but not through the extender. Yet, the normal sitech program is fine either way.

My guess is the code that the servo config program uses for the serial interface is different from sitechexe. I've heard the statement many times over the years that "its just a serial port", but there are subtle differences between them and some drivers better than others.

I would suggest you borrow a pc laptop from someone - you should only need to configure the controller once.

--- Dave

On 06/07/2016 7:00 AM, steven42lee@... [SiTechservo] wrote:
Hi,

I've just bought a new SiTech servo controller to attempt to convert an RCOS focus motor and have run into an unexpected problem - the controller won't talk to the ServoConfig program.  It will talk happily to  the Focus control program, and the Rotator control program - but NOT ServoConfig (nor SiTech.exe), which is rather necessary.

My configuration where I'm doing this is a bit peculiar and may be the cause of the problem, but I can't understand why it won't work.  I am using a Macbook Pro which is running Windows 7 via VMWare.  I've used this combination for many years and never had any problems - Maxim talking to CCDs, TheSkyX talking to a Paramount, etc.  All work fine.  I use a USB to serial adaptor for the com port.  I can happily run the latest Focuser II program from the Sidereal Technology web page and it talks to the controller and drives the motor.  That part is fine.  But ServoConfig refuses to connect.  I can run ServoConfig on my little netbook running XP and that works fine - but I want to install this on a W7 machine and want to know if there are issues with doing this.  I can't understand why - it's just a serial port - but the Communicator program which is run when the focuser routine is run gives warnings about blocked threads (although it clearly works and talks to the controller).  What is different between the focus/rotator interface and ServoConfig?

At the moment, I can't get to a pure W7 computer for more testing, but there should be no difference between that and what I'm currently using.  Any advice greatly appreciated.

Secondly - and possibly for Dan - the focuser routine says that a temperature compensated option is being worked on.  How will you get temperature information to the controller?  The RCOS has a number of thermistors on it and it would be great if they could be read.  Are there any plans for an interface to allow tempera tures to be read so that focus compensation can be implemented?

Lastly, are they many users of SiTech focusers?  Looking thorough the topics on this list I can find precisely 1 mention of a focuser.  Has anybody converted an RCOS focuser (it uses a Pittman servo motor) to SiTech?  Any advice?  Thanks.

- Steve




Re: SiTech Refraction

Sedat Bilgebay
 

I'm glad to see that something useful came out from the discussion I've started. Thank you the time and effort you all put into this.

Unfortunately, my friend Per, the developer of Stickstation, has passed away. A very sad and shocking news indeed. He was a very nice person and he will be missed sorely. May he rest in peace!







SiTech focuser - questions

steven42lee@...
 

Hi,

I've just bought a new SiTech servo controller to attempt to convert an RCOS focus motor and have run into an unexpected problem - the controller won't talk to the ServoConfig program.  It will talk happily to  the Focus control program, and the Rotator control program - but NOT ServoConfig (nor SiTech.exe), which is rather necessary.

My configuration where I'm doing this is a bit peculiar and may be the cause of the problem, but I can't understand why it won't work.  I am using a Macbook Pro which is running Windows 7 via VMWare.  I've used this combination for many years and never had any problems - Maxim talking to CCDs, TheSkyX talking to a Paramount, etc.  All work fine.  I use a USB to serial adaptor for the com port.  I can happily run the latest Focuser II program from the Sidereal Technology web page and it talks to the controller and drives the motor.  That part is fine.  But ServoConfig refuses to connect.  I can run ServoConfig on my little netbook running XP and that works fine - but I want to install this on a W7 machine and want to know if there are issues with doing this.  I can't understand why - it's just a serial port - but the Communicator program which is run when the focuser routine is run gives warnings about blocked threads (although it clearly works and talks to the controller).  What is different between the focus/rotator interface and ServoConfig?

At the moment, I can't get to a pure W7 computer for more testing, but there should be no difference between that and what I'm currently using.  Any advice greatly appreciated.

Secondly - and possibly for Dan - the focuser routine says that a temperature compensated option is being worked on.  How will you get temperature information to the controller?  The RCOS has a number of thermistors on it and it would be great if they could be read.  Are there any plans for an interface to allow temperatures to be read so that focus compensation can be implemented?

Lastly, are they many users of SiTech focusers?  Looking thorough the topics on this list I can find precisely 1 mention of a focuser.  Has anybody converted an RCOS focuser (it uses a Pittman servo motor) to SiTech?  Any advice?  Thanks.

- Steve



Re: SiTech Refraction

westergren@...
 

Jesse,

The formula I show is the formula for average lapse rate.

You are confusing Sea Level with the pressure at TDS elevation (1131 meters).  The weather is often quoted for Sea Level conditions even for mountains.  You just got tricked by that.  Sea Level pressure is 1013 millibars.

Don W


Re: SiTech Refraction

jmgoldba
 

Don,

Where did you get this formula? Its values aren't close to matching those reported from the TDS WunderStation. I found a formula at this site that additionally relies on knowing the current condition(s) at sea level. Using an ISA standard for sea level conditions they come up with 977 millibars at 1000 m which is closer to the 1015 millibars the weather station is currently displaying at 1131m than your 899 millibars. I think it's best to use a local weather station for these values. -Jesse


Re: Renishaw and Little Black Box

Dan Gray
 

Yes, you can buy it.
I'm cc'ing Taj. He can answer your questions tomorrow.
Dan

I think that my question is for Dan...


I build a new mount and I plan to put the 26bits Readhead Renishaw ETR
Absolue Encoder with ring RESA (protocole BiSS). I have Servo II. Where I
can find information about the "Little Black Box" for interface the
Renishaw on the Servo II? Can we buy-it or can we build-it the little
black box?


Luc Turbide



Renishaw and Little Black Box

Luc Turbide
 

I think that my question is for Dan...


I build a new mount and I plan to put the 26bits Readhead Renishaw ETR Absolue Encoder with ring RESA (protocole BiSS). I have Servo II. Where I can find information about the "Little Black Box" for interface the Renishaw on the Servo II? Can we buy-it or can we build-it the little black box?


Luc Turbide



Re: Refraction data and Stickstation

Don Degidio
 

Shawn,

If you know the exact name of the groups you want to leave, send an email to GroupName-unsubscribe@yahoogroups.com

Don D

----- Original Message -----
From: "'shacoly@aol.com' Shacoly@aol.com [SiTechservo]" <SiTechservo@yahoogroups.com>
To: "westergren@nethere.com [SiTechservo]" <SiTechservo@yahoogroups.com>
Sent: Sunday, July 03, 2016 10:27 AM
Subject: Re: [SiTechservo] Re: Refraction data and Stickstation


Hi, can someone please tell me what I can do. I cannot log into yahoo groups. It will not accept my email address it says it doesn't recognise that email address. I cannot find anyone to email to help me at yahoo. I'm so disgusted with the spam I am getting from some of my groups. I can't login to unsubscribe from the groups in question. Can someone offer any help.
Sent from my Verizon 4G LTE Smartphone


Re: SiTech Refraction

westergren@...
 

Here are the elevation pressures in millbars again (Yahoo is really messed up!)

Don W


---In SiTechservo@..., <westergren@...> wrote :

Pressure = (101325*(1-2.25577*10^-5*h)^5.25588)/100
Pressure in millibars
h in meters elevation 

h      millibars
0      1013
500    955
1000  899 
1500  846
2000  795
2500  747 
3000  701
3500  658
4000  616
4500  577 
5000  540
5500  505
6000  472
6500  440
7000  411
7500  383
8000  356
8500  331
9000  307
9500  285
10000 264


Re: SiTech Refraction

westergren@...
 

Pressure = (101325*(1-2.25577*10^-5*h)^5.25588)/100 Pressure in millibars h in meters elevation  h millibars 0 1013 500 955 1000 899 1500 846 2000 795 2500 747 3000 701 3500 658 4000 616 4500 577 5000 540 5500 505 6000 472 6500 440 7000 411 7500 383 8000 356 8500 331 9000 307 9500 285 10000 264

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