Date   

Re: Mach2 Wifi problems #Mach2GTO #WiFi

DFisch
 


On Wed, Sep 30, 2020, 10:52 Dominique Durand via groups.io <dom33.durand=yahoo.com@groups.io> wrote:
Hi Liam

So I made some measurements with WIFI Analyzer, and it goes from -35db to -80db depending on my position compared to the CP5, but the problem is that when I turn on the computer with the USB3 connected and the antenna raised , the GTOCP5 hotspot disappears, so no measure possible of course. When I put the aluminum foil back on the antenna the hotspot reappears. I also made another test with a small USB2 extension cable (50cm) on the connection to my computer and there with the antenna raised and without aluminum foil the hotspot also reappears !!! This suggests that the "USB3" stream creates interference via the antenna which goes as far as "hiding" the hotspot, because if I move the CP5 away from the USB3 cable it works again.
You should be able to reproduce this situation I think.

Best regards
Dominique


Re: Mach2 Wifi problems #Mach2GTO #WiFi

Dominique Durand
 

Hi Rolando, Hi Liam
I just tested by surrounding the USB3 cables near the CP5, with aluminum foil and the antenna raised, it does not give anything better. There may be a set of factors which combine on my installation to arrive at this situation (USB3, CC, ...). It would take other devices than the ones I have to measure the different fields present in this area.We know that there can be a problem like this and we know there is a solution for it to work, that's the main thing right?
Thanks to you two
Best regards
Dominique


Re: DEC ignored during PEM recording?

Brian
 

in case somebody else has this issue: the problem disappeared when I upgraded my control box firmware (to  VCP4-P01-14 from  VCP4-P01-02 :-)


Re: Mach2 Wifi problems #Mach2GTO #WiFi

Roland Christen
 


I'm not sure they are actually armored
I have several USB3 cables and they do have shields surrounding the wires. The cables are quite thick compared to USB2 cables.

Rolando


-----Original Message-----
From: Dominique Durand via groups.io <dom33.durand@...>
To: main@ap-gto.groups.io
Sent: Wed, Sep 30, 2020 12:08 pm
Subject: Re: [ap-gto] Mach2 Wifi problems #Mach2GTO #WiFi

On Wed, Sep 30, 2020 at 06:23 PM, uncarollo2 <chris1011@...> wrote:
Your USB3 cable is probably not shielded, so it creates interference.
 
Rolando
Thanks Rolando,
I'm not sure they are actually armored and so that explains it. I'll check by surrounding those near the CP5 with aluminum foil. On the other hand, the fact of putting a small Usb2 extension cable in the path eliminates the problem.
Best Regards
Dominique


Re: Mach2 Wifi problems #Mach2GTO #WiFi

Dominique Durand
 

On Wed, Sep 30, 2020 at 06:23 PM, uncarollo2 <chris1011@...> wrote:
Your USB3 cable is probably not shielded, so it creates interference.
 
Rolando
Thanks Rolando,
I'm not sure they are actually armored and so that explains it. I'll check by surrounding those near the CP5 with aluminum foil. On the other hand, the fact of putting a small Usb2 extension cable in the path eliminates the problem.
Best Regards
Dominique


Re: Mach2 Wifi problems #Mach2GTO #WiFi

Roland Christen
 

Your USB3 cable is probably not shielded, so it creates interference.

Rolando



-----Original Message-----
From: Dominique Durand via groups.io <dom33.durand@...>
To: main@ap-gto.groups.io
Sent: Wed, Sep 30, 2020 9:52 am
Subject: Re: [ap-gto] Mach2 Wifi problems #Mach2GTO #WiFi

Hi Liam

So I made some measurements with WIFI Analyzer, and it goes from -35db to -80db depending on my position compared to the CP5, but the problem is that when I turn on the computer with the USB3 connected and the antenna raised , the GTOCP5 hotspot disappears, so no measure possible of course. When I put the aluminum foil back on the antenna the hotspot reappears. I also made another test with a small USB2 extension cable (50cm) on the connection to my computer and there with the antenna raised and without aluminum foil the hotspot also reappears !!! This suggests that the "USB3" stream creates interference via the antenna which goes as far as "hiding" the hotspot, because if I move the CP5 away from the USB3 cable it works again.
You should be able to reproduce this situation I think.

Best regards
Dominique


Re: Mach1 play in RA Axis - did not adjust out with Gear Mesh adjustment

Roland Christen
 


've read through your post about 4 times now - looking at the mount.  Is the adjustment that you are describing here the same as is outlined in https://www.astro-physics.info/tech_support/mounts/mach1gto/mach1gto-auto-adjusting-gearbox.pdf --- or is this a different/additional adjustment?  I'm a bit confused. 
The adjustment that is in the PDF is correct. However, it is fundamental and lacks some context that would let you understand exactly what is happening. I attempted to give you some instructions so that you can get a full appreciation and better understand exactly what this lever does when you lock and unlock the gearbox.

What you are actually doing when you rotate the lever counterclockwise is the following: the first 90 degrees of rotation backs off the backstop, but does not take the gears out of mesh. The next 90 degrees counterclockwise pulls the gears out of mesh. Turning it clockwise reverses the action. Until you understand that you will have no clue as to what this lever actually does and why the adjustment is there for you. We have had a number of customers in the past actually adjust the backstop backwards which made the gears go out of mesh rather than go into mesh. So, I just wanted you to have the full knowledge of how the system works and not treat it like a black box that you need to be afraid of.

Rolando


-----Original Message-----
From: John Davis <johncdavis200@...>
To: main@ap-gto.groups.io
Sent: Tue, Sep 29, 2020 10:32 pm
Subject: Re: [ap-gto] Mach1 play in RA Axis - did not adjust out with Gear Mesh adjustment

Rolando - 
   I've read through your post about 4 times now - looking at the mount.  Is the adjustment that you are describing here the same as is outlined in https://www.astro-physics.info/tech_support/mounts/mach1gto/mach1gto-auto-adjusting-gearbox.pdf --- or is this a different/additional adjustment?  I'm a bit confused.  If you are describing what is in the pdf at that link - then I have attempted that adjustment several times, and it has made no difference in the amount of play. 

I have checked the counterweight shaft - it is tightly attached - that is not the source of the motion.  Tomorrow I will remove the declination assembly and check the main bearing retainer nut.

Please advise if I am mis-understanding the worm adjustment that you are describing. 
Thanks and sorry for being so dense understanding your post.
John


Re: Mach2 Wifi problems #Mach2GTO #WiFi

Dominique Durand
 

Hi Liam

So I made some measurements with WIFI Analyzer, and it goes from -35db to -80db depending on my position compared to the CP5, but the problem is that when I turn on the computer with the USB3 connected and the antenna raised , the GTOCP5 hotspot disappears, so no measure possible of course. When I put the aluminum foil back on the antenna the hotspot reappears. I also made another test with a small USB2 extension cable (50cm) on the connection to my computer and there with the antenna raised and without aluminum foil the hotspot also reappears !!! This suggests that the "USB3" stream creates interference via the antenna which goes as far as "hiding" the hotspot, because if I move the CP5 away from the USB3 cable it works again.
You should be able to reproduce this situation I think.

Best regards
Dominique


Re: Mach1 play in RA Axis - did not adjust out with Gear Mesh adjustment

John Davis
 

Rolando - 
   I've read through your post about 4 times now - looking at the mount.  Is the adjustment that you are describing here the same as is outlined in https://www.astro-physics.info/tech_support/mounts/mach1gto/mach1gto-auto-adjusting-gearbox.pdf --- or is this a different/additional adjustment?  I'm a bit confused.  If you are describing what is in the pdf at that link - then I have attempted that adjustment several times, and it has made no difference in the amount of play. 

I have checked the counterweight shaft - it is tightly attached - that is not the source of the motion.  Tomorrow I will remove the declination assembly and check the main bearing retainer nut.

Please advise if I am mis-understanding the worm adjustment that you are describing. 
Thanks and sorry for being so dense understanding your post.
John


Re: Mach1 play in RA Axis - did not adjust out with Gear Mesh adjustment

Roland Christen
 

There is a lever on the side of the gearbox. It is under a cover that snaps off if you pull on it. With counterweight down and no scope on the mount, turn the lever fully counterclockwise (about 180 degrees from the locked position). Doing that, you will pull the gearbox completely out of mesh, so that the worm gear teeth and the worm wheel teeth are no longer in contact with each other. Take a look at this position of the gearbox and familiarize yourself with the action so that you understand fully how the worm gear and worm wheel are meshed together, and how the gear and wheel actually work.

Once you understand that, turn the lever 1/2 way clockwise so that it points up (about 90 degrees from the unlocked position). Notice how the gearbox moves the worm gear into the teeth of the worm wheel. At this point the spring is pushing the entire gearbox assembly in a clockwise direction and the two gears should be fully mated. You can manually pull the gearbox away from mesh with your hand and you will feel the spring action wanting to push it back into mesh.

Once you fully understand that action, turn the lever gently clockwise until you can feel some resistance, or until it snaps into place pointing toward the worm gears. In that position you should be able to pull the gearbox back from mesh only very slightly because now there is a backstop preventing the gears from coming out of mesh. You can adjust the backstop position by loosening the two screws on either side of the lever and gently pushing the plate downward with finger pressure and tightening the two screws while maintaining that pressure.  This should cause the worm and worm wheel to be fully engaged and fully meshed.

Now, if the axis still moves when you put slight pressure on the counterweight shaft, then there are two possibilities. The worm is held in place by an end nut. If this nut comes loose (due to shipping vibration) then the worm can move back and forth and make it look like the gears are not in mesh. You can out your finger on the end of the worm gear and rock the axis via the cwt shaft - you may be able to feel the worm move. If it does, then the end play nut is loose and needs to be tightened. If it does not move and is tight then there are two other possibilities.

Your counterweight shaft might be loose in it's threaded end adapter. Tighten it and try again.

The second possibility is that the main bearing retainer nut has vibrated loose during shipping. That can be easily tightened. You will need to remove the counterweight shaft and the cwt adapter on the end of the RA axis. You can then look inside the axis and see the main bearing retainer nut. You can hand tighten it with a simple spanner wrench.

Try these suggestions and see if any of them work. The mount is quite basic, and once you play around with it a bit you will begin to understand how it is put together. Nothing fancy about this mount and nothing you can really mess up if you are in the least mechanical.

Rolando



-----Original Message-----
From: John Davis <johncdavis200@...>
To: main@ap-gto.groups.io
Sent: Tue, Sep 29, 2020 6:34 pm
Subject: [ap-gto] Mach1 play in RA Axis - did not adjust out with Gear Mesh adjustment

I have a new-to-me Mach1 that I received last week via UPS from its original owner.  The mount was securely shipped in a pelican case with a custom foam cutout that securely held it in place.  

I have now begun to assemble the mount on its new tripod, and after putting the mount on the tripod, I noticed that there was some play in both the Dec and RA axies with the clutches finger tightened.  I read the section of the Manual about the Gear Mesh adjustments.  This mount was sold new in June 2016, so it has the auto-adjusting motor gearbox.  I followed the instructions in this section of the manual to perform those adjustments.  That adjustment took all the play out of the Dec axis - it is rock solid now.  However, the RA axis still has seemingly the same amount of play in it as it did before the adjustment.  I repeated the process on the RA axis another time or two to make sure that I did it correctly.

I'd like some input from you all who are long-term owners about what the problem might be (if it is a problem) and what the solution might be.  I've contacted AP but have not heard back from them yet.

I've attached a short video illustrating what I'm seeing.
Thanks!


Mach1 play in RA Axis - did not adjust out with Gear Mesh adjustment

John Davis
 

I have a new-to-me Mach1 that I received last week via UPS from its original owner.  The mount was securely shipped in a pelican case with a custom foam cutout that securely held it in place.  

I have now begun to assemble the mount on its new tripod, and after putting the mount on the tripod, I noticed that there was some play in both the Dec and RA axies with the clutches finger tightened.  I read the section of the Manual about the Gear Mesh adjustments.  This mount was sold new in June 2016, so it has the auto-adjusting motor gearbox.  I followed the instructions in this section of the manual to perform those adjustments.  That adjustment took all the play out of the Dec axis - it is rock solid now.  However, the RA axis still has seemingly the same amount of play in it as it did before the adjustment.  I repeated the process on the RA axis another time or two to make sure that I did it correctly.

I'd like some input from you all who are long-term owners about what the problem might be (if it is a problem) and what the solution might be.  I've contacted AP but have not heard back from them yet.

I've attached a short video illustrating what I'm seeing.
Thanks!


Re: 900 Clutch Plug Help

rrumfield
 

George,

Sorry for the delay in getting back to you. My wife helped me and after a few fits and starts the RA piece is back together and all is well.  The new clutch plugs are installed and leveling should be a breeze.  The Declination system did not need the clutch plugs replaced.  I came home early today from work and we followed Rolando’s procedure to mesh the gears on the RA drive.  All drive directions work smoothly.  We can’t wait to put the weights back on and add our 130 f6.3 StarFire GTX.  If we have any problems I’ll contact you all, but fir now I think we are ok.

Regards,
Bob Rumfield


Re: Counterweights...How Much Is Too Much Too Balance? AP1100GTO

Ajay Narayanan
 

I found in a similar set up that going from a guidescope to an OAG reduced the counterweight requirement significantly. The moment arm of the guidescope in this picture is large.
OAG's bring other headaches and some folks use the guidescope itself as a secondary imager from time to time, but that would be one way to reduce counterweights.


Re: AP1100GTO AE Is Totally Lost...How Do I Reset It

Tony Benjamin <tonybenjamin@...>
 

Okay, I think I figured it out. Had to loosen the clutches on both the Dec and RA and then ran Park 3 and manually aligned the RA and Dec then did a slew and a RECAL and all seems good again :)


AP1100GTO AE Is Totally Lost...How Do I Reset It

Tony Benjamin <tonybenjamin@...>
 

It won't even go to Park 3. Even when I disconnect the mount it keeps tracking fairly quickly (200x?)

How do I get it to figure itself out? I don't recall doing anything odd to it?


Re: Counterweights...How Much Is Too Much Too Balance? AP1100GTO

Eric Dreher <ericpdreher@...>
 
Edited

When new, my Mach1 (2017) was just under the +/- 3.5, or 7 pk-pk.  I redid my PEMPro curve a couple of weeks ago, and found it to be just over 9".

With my PEMPro curve applied, it's now less than 1" pk-pk.  Guiding is exceptional with my three 9 lb counterweights at the top.


Re: 900 Clutch Plug Help

George
 

Bob,

 

Contact me directly.    I can help you with photos and instructions.

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of rrumfield via groups.io
Sent: Saturday, September 26, 2020 3:42 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] 900 Clutch Plug Help

 

After sometime off from using my 900GTO mount, I realized I needed to replace the clutch plugs on the right ascension unit.  I ordered the removal tool and new plugs.  The first plug removal was a learning experience and didn’t get totally removed, the other three were no problem.  I started to disassemble the R.A unit to get the first plug out.  I didn’t realize it was filled with plastic rollers.  At present I have been able to re-assemble it with two rows of rollers and a center axis that just doesn’t seem to now fit into the RA head properly.  Does anyone have the procedure to re-assemble the unit?  Should I send all back to Astro-Physics at this point?

Help,
Bob


Re: Counterweights...How Much Is Too Much Too Balance? AP1100GTO

CurtisC <calypte@...>
 

Just within the past week I added another 18 lb counterweight to my Mach1.  That allowed me to shove most of the weight to the top of the shaft, using a 10 lb to set the fine balance.  Scope is a TEC140ED with cameras.  To my great surprise, it's made a significant difference in PE.  My mount still doesn't meet the original spec, but whereas 20 p-to-p was typical before, now it's down to 11 p-to-p.


Re: Counterweights...How Much Is Too Much Too Balance? AP1100GTO

Tony Benjamin <tonybenjamin@...>
 

Thanks,

 

I’ll be trying to move mine ahead a little bit more.

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Peter Bresler via groups.io
Sent: September 28, 2020 9:28 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Counterweights...How Much Is Too Much Too Balance? AP1100GTO

 

I balanced my PW 12,5 with two 18s and two 10s, and use C clamps to balance the scope. Its right in balance.


Thanks to Dale Ghent

Worsel
 

Just wanted Dale to know I appreciated the suggestion about ASCOM for DSLR.  I downloaded the ASCOM.DSLR files at https://github.com/FearL0rd/ASCOM.DSLR/wiki

This is the latest version that started with Vladimir Torkalo's inital steps. https://stargazerslounge.com/topic/317522-ascomdslr-ascom-driver-for-dslr-camers-canon-nikon/

The driver installed easily and shows up in Chooser the same as any ASCOM-compliant device.  You can link to Canon SDK, BYEOS, recent Nikon, Pentax, and some older Nikon cameras. I only have interest in Canon and, by extension, BYEOS; hence cannot comment on the other options.

Still some glitches plus work to do at my end, but this was a big step forward!

Bryan

15301 - 15320 of 88837