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Re: AP V2 driver, move axis command help.
Ken Sablinsky
I can't speak for the software or drivers, but one thing you said rang a bell -- about it being in the Park 3 position when you are trying this.... have you tried this test looking at a star field far away from Park 3? If you are pointing at Polaris, East/West movements looks much slower while watching the star field because it's like 100% rotation instead of moving straight across the field. That wouldn't explain North/South slow speeds though so perhaps this doesn't help.
-Ken
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Re: AP V2 driver, move axis command help.
Andy Ermolli
Sorry I did not have logging enabled. It's the first time that I do this. Regarding the duration of the nudge command. It works fine, I saw the driver change from custom rate to sidereal but the dec axis was actually moving sorry for reporting that incorrectly.
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Re: AP V2 driver, move axis command help.
Ray Gralak
Here is the log, I hope that I did this correctly. I never used the log zipper before.There are no logs in your zip file. Do you have logging enabled? -Ray -----Original Message-----
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Re: AP V2 driver, move axis command help.
Ray Gralak
Andy,
toggle quoted messageShow quoted text
Where are you pressing the button? In the driver or a third-party application? The driver just issues the commands given to it by the client application. Note that if the scope passed through the Celestial pole (Dec = 90) the Dec direction will appear to change. -Ray
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Re: AP V2 driver, move axis command help.
Ray Gralak
Andy,
Another curious behavior that I noticed is that even if I kept the north button clicked, the driver would stop the decThe driver just sends a rate command to the mount. The driver doesn't issue a stop after a period of time. That may be the ASCOM client doing that, or maybe the mount hit a limit. -Ray -----Original Message-----
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Re: AP V2 driver, move axis command help.
Andy Ermolli
One more observation: If I push north, the mount moves north. Then I release the north button and it push it again, the mount now moves south but the numbers in the driver are the same and they don't change to a negative value as one would expect to reverse the motion (south in this case).
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Re: AP V2 driver, move axis command help.
Andy Ermolli
Ray, I have new information. I set the slew rate to 4 degrees/second. The Driver showed a move rate of 937.3870. I pushed the north button for a few seconds in the image capture software and I could see the dec axis move. I would say it was moving a bit faster than 64x, maybe 100x. So it's doing something.
Another curious behavior that I noticed is that even if I kept the north button clicked, the driver would stop the dec motion after a few seconds. Here is the log, I hope that I did this correctly. I never used the log zipper before. Thank you!
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Re: AP V2 driver, move axis command help.
Ray Gralak
BTW, it can take 3-5 seconds for the mount to spin up to full speed, so the RA/Dec changes will appear slower until the target rate is reached.
toggle quoted messageShow quoted text
-Ray
-----Original Message-----
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Re: AP V2 driver, move axis command help.
Ray Gralak
Could it be that the firmware of the mount does not allow any move axis over sidereal speed?No... Andy, are you physically in front of the mount to verify this? If so, and you are sure that's what happening, please run the AP V2 Log Zipper utility (it's included with the A-P driver) and zip up the most recent logs and post them here. -Ray -----Original Message-----
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Re: AP V2 driver, move axis command help.
Andy Ermolli
Thank you Ray, I tried 1,2, 3 and 4 degrees with both programs and the same thing happens. I see the numbers change in the driver window but the mount always moves at sidereal rate. Could it be that the firmware of the mount does not allow any move axis over sidereal speed?
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Re: Serial to ethernet
#WiFi
Tom Blahovici
I have used a Silex USB to ethernet server in the past for this purpose. I used a USB to serial adapter to connect to the mount.
The silex seems to be fine for this purpose. It would even allow my STL11000 to be used over ethernet once the firmware is loaded into the camera with a direct USB connection. Tom
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Re: Ugghhh cross threaded CW shaft into CW shaft adapter with metal threaded sleeve
Cheng-Yang Tan
I think I'll have to get my friends to help with this. They are a lot more knowledgeable how to do hands on stuff than I do. cytan
On Sunday, August 15, 2021, 02:53:11 PM CDT, ap@... <ap@...> wrote:
Do you have two strap wrenches?
I’d start with those. Or if you have soft grips on a vice even better for the shaft (not the threads), but that’s less common to have sitting around. Strap wrenches you can buy at any home improvement store, and are pretty safe (well, don’t slip and drop the bar on your toe, but unlike metal wrenches you won’t mar up the bar with a strap wrench).
The problem with heat/cold is that I think both are stainless and probably change together, though it may be worth while freezing all of it really cold, then having boiling water standing by and dunk just the end into the boiling water and very quickly afterwards try turning with the strap wrench. The idea being to expand just the adapter end.
But frankly I suspect temperature is not going to help, as heat conducts very quickly in steel.
You can also try penetrating oil on the threads just so once it moves at all, it will be easier to keep going.
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Re: AP V2 driver, move axis command help.
Ray Gralak
Hi Andy,
toggle quoted messageShow quoted text
I believe that the MoveAxis rate is limited to 999x in firmware. Try using 4 degrees instead. -Ray
-----Original Message-----
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Re: Ugghhh cross threaded CW shaft into CW shaft adapter with metal threaded sleeve
ap@CaptivePhotons.com
Do you have two strap wrenches?
I’d start with those. Or if you have soft grips on a vice even better for the shaft (not the threads), but that’s less common to have sitting around. Strap wrenches you can buy at any home improvement store, and are pretty safe (well, don’t slip and drop the bar on your toe, but unlike metal wrenches you won’t mar up the bar with a strap wrench).
The problem with heat/cold is that I think both are stainless and probably change together, though it may be worth while freezing all of it really cold, then having boiling water standing by and dunk just the end into the boiling water and very quickly afterwards try turning with the strap wrench. The idea being to expand just the adapter end.
But frankly I suspect temperature is not going to help, as heat conducts very quickly in steel.
You can also try penetrating oil on the threads just so once it moves at all, it will be easier to keep going.
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Re: Ugghhh cross threaded CW shaft into CW shaft adapter with metal threaded sleeve
Cheng-Yang Tan
Tried freezing and boiling water, but I can't get it off. The problem is that I don't have the right tools to do this. cytan
On Sunday, August 15, 2021, 01:28:58 PM CDT, Seb@stro <sebastiendore1@...> wrote:
I would actually try the opposite, putting it in the freezer so metal contracts and parts loosen...
Hope this helps.
Sébastien
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AP V2 driver, move axis command help.
I am having a weird issue with the AP V2 driver. Currently I use the version v5.21.01. The mount is a Mach1 GTOCP3 with the V chip and I am not using the hand controller. When I push the button I see the custom tracking rate in the driver window change to 1195.7233, that is either in Dec or RA depending on which button I pushed. However the mount will only move in the requested direction at the sidereal speed instead of 1195.7233x.
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Re: Serial to ethernet
#WiFi
David Diaz <night.skywatcher@...>
I’m trying to ‘hardwire’ the GTOCP3 to my wireless router so I don’t have to physically connect it to my NUC. The NUC connects as a LAN and can wirelessly access my focuser and run a VNC wirelessly to my laptop.
If I put the NUC atop my OTA, I’d have to run a USB ‘up’ the OTA from the mount. I don’t have $1200 for the CP4 upgrade at the moment. It’s all about the wires, the bane of my existence 🔭😎 DD
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Re: Ugghhh cross threaded CW shaft into CW shaft adapter with metal threaded sleeve
Cheng-Yang Tan
toggle quoted messageShow quoted text
On Sunday, August 15, 2021, 1:28 PM, Seb@stro <sebastiendore1@...> wrote:
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Re: Ugghhh cross threaded CW shaft into CW shaft adapter with metal threaded sleeve
Sébastien Doré
I would actually try the opposite, putting it in the freezer so metal contracts and parts loosen...
Hope this helps.
Sébastien
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Re: Ugghhh cross threaded CW shaft into CW shaft adapter with metal threaded sleeve
Cheng-Yang Tan
The adapter (black part) is off so it'll not be marred. The threaded sleeve is stuck onto the CW shaft. I'm worried that I'll mar the exterior threads of the sleeve while trying to get it off. But in the end, it may be that I'll need to get a new sleeve if I can actually get the sleeve off. I'll talk to my friends who actually know how to do this. I don't have too many tools at home because don't want to hurt myself :) cytan
On Sunday, August 15, 2021, 12:39:17 PM CDT, Christopher Erickson <christopher.k.erickson@...> wrote:
And if you don't want to get the help of a machine shop, a rubber strap wrench and a bench vise with a couple small pieces of plywood in the jaws will probably help you get them apart without marring up the adapter. When you get them apart, carefully clean the threads of both with a wire brush and a paper towel before re-lubing them and putting them back together. "My advice is always free and worth every penny!" Observatory Engineer Summit Kinetics Waikoloa, Hawaii On Sun, Aug 15, 2021 at 7:33 AM Christopher Erickson via groups.io <christopher.k.erickson=gmail.com@groups.io> wrote:
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