Alan Sipling:
Gunder, have you tried swapping the power supplies over? Just to see if the asiair needs more than 5 amp. There is the chance that you have multiple issues. Hopefully not tho. I would get disconnections just while tracking aswell. It was that inconsistent I initially thought it was the UPBv2 playing up. Everything runs fine now I have swapped the boards and cables.
*** Will try to power the aa+ separately just to check that out. Have sent an e-mail to the dealer where I purchased it, asking for advice.
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Gunder Strømberg:
Alan Sipling:
Good luck. iOptron call it a "stock up plan". They offer 30% discount on the parts with the promise that they will refund (except P&P) once they have the faulty parts back and tested them.
*** Did the test You mentioned, turned everything on, unlocked and moved the scope manually from one end to the other in the DEC axis, AsiAir powered off and the on again. However this actually happened several times during the test, even when nothing was moved.
I got two powersupplies, one 12V 5Amp powering the mount, one 12V 10Amp powering the end of the RA axis.
AsiAir gets power from the saddles "no. 1" and main camera/EAF from saddles "no. 2".
AsiAir powering two dew heater bands (50%). Main camera, guide camera and mount connected to the USB ports on the AsiAir.
Can't really see that power supply should be insufficient, neither for AsiAir nor camera/EAF ?
I don’t think this diagram is correct, the two USB ports you have marked are NOT powered, as none of them are, it’s an unpowered USB hub, hence why so many people have issues with it and disconnects…I don’t use it at all, it’s easier to run a couple of USB cables through the mount.
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Astroshed, there are different versions of the mount. My mount has 2x powered and 1x unpowered usb 2.0 ports. I'd attach a screen shot but don't know how!
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Alan Sipling:
Astroshed, there are different versions of the mount. My mount has 2x powered and 1x unpowered usb 2.0 ports. I'd attach a screen shot but don't know how!
There are different versions of the mount, but the ones with the USB 2.0 hub are all unpowered AFAIK, I would like to see some proof to the contrary…👍🏻
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@AstroShed
https://www.ioptron.com/Articles.asp?ID=253
Download the manual for the CEM70. Page 8.
It looks the same 2.0 mount.
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Alan Sipling:
@AstroShed
https://www.ioptron.com/Articles.asp?ID=253
Download the manual for the CEM70. Page 8.
It looks the same 2.0 mount.
My appologies, I stand corrected, you learn something new every day…thanks 👍🏻
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| @AstroShed Every day is a school day! 😀
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AstroShed:
Gunder Strømberg:
Alan Sipling:
Good luck. iOptron call it a "stock up plan". They offer 30% discount on the parts with the promise that they will refund (except P&P) once they have the faulty parts back and tested them.
*** Did the test You mentioned, turned everything on, unlocked and moved the scope manually from one end to the other in the DEC axis, AsiAir powered off and the on again. However this actually happened several times during the test, even when nothing was moved.
I got two powersupplies, one 12V 5Amp powering the mount, one 12V 10Amp powering the end of the RA axis.
AsiAir gets power from the saddles "no. 1" and main camera/EAF from saddles "no. 2".
AsiAir powering two dew heater bands (50%). Main camera, guide camera and mount connected to the USB ports on the AsiAir.
Can't really see that power supply should be insufficient, neither for AsiAir nor camera/EAF ?
I don’t think this diagram is correct, the two USB ports you have marked are NOT powered, as none of them are, it’s an unpowered USB hub, hence why so many people have issues with it and disconnects…I don’t use it at all, it’s easier to run a couple of USB cables through the mount.
*** I do not use the USB ports. AsiAir powered by the DC port marked 1. and camera/EAf powered by the DC port to the very right marked 2.
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Sorry I did not see your note, I have been out of town. I have the “G” version and no encoders. If you have a permanent setup or have no problems with plate solving I would not pay the extra money. Guiding is good, typically one arc-sec P-to-P with a good alignment. I do a three star alignment and the first and second alignment star is seldom in the FOV with my 2000 mm scope. I do not think the encoders would help me because the problem is related to initial conditions. By the way, there no setting circles so it is difficult to set Zero-point at start up. Also, you must check the GPS settings because many times they are off. I have portable setup so my issues may be different.. Pointing accuracy is not as accurate as my Losmandy where I usually would only do a one star alignment. I like the mount, it has some nice features, but I am not a fan of belt drive accuracy, encoders would enhance all aspect of the performance. Chris Strang (USA).
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this might be a done deal already, but I really wouldn't recommend an upgrade to the CEM70EC
I've owned both the CEM70 and a CEM70EC2 in the past couple years. I ended up selling the EC2 version because I really didn't end up with large enough improvement over the CEM70 guiding. The main benefits I could tell from the months that I used both
- EC2 allowed me 2-3 minute unguided subs focal lengths < 500mm. Though this was nice, it wasn't the impact I wanted from the EC (my focus was on improved overall guiding and shifting out to 10-15min subs if possible)
- the EC2 allowed my to shift my PHD2 guiding frequency out to 4-5 secs instead of 2s where I get the best results with my CEM70 now.
- On windier nights, guiding was arguably less noisy on the EC2, though I could never quantify that and I think it was confirmation bias mostly.
Honestly, the best upgrade I did for my CEM70 was adding extra counterweights so I could shift them further up the CW shaft (just below where they would rub the saddle). for my ~40lbs payload I have 2x9.5kg + 2x2.5kg now. It's not exact, but I think brought my avg RMS down from .4-.6 down to .3-.5
Separately, I do have the HEM44EC and comparing that to the guiding performance of the HEM27 I had previously, it made a much bigger impact. (i'm sure someone here can probably theorize why better than I can)
hope this helps!
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I am running the CEM70 w/iPolar (no-encoders) and this was my average error while imaging after adjusting my gear meshing in both axes. |
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Dustin Enfinger:
adjusting my gear meshing in both axes.
Dustin, what's this referring to? maintenance activity? or something you identified as an issue?
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Dustin Enfinger:
adjusting my gear meshing in both axes.
Dustin, what's this referring to? maintenance activity? or something you identified as an issue?
Something I knew could be adjusted for performance (backlash-removal). While I was guiding already within an acceptable range for my imaging rig specs I simply wanted to see if performance could be improved, and it was.
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Is there some sort of write-up or guidance on how to do that? Or do you need some sort of expertise on this.
(i'm great at taking things aparts, just not so much in the putting back together thing)
improved guiding performance, yum, I think i'd like to have that!
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| @Nick Grundy If you download the manual there's clear instructions in appendix D.
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There is no need at all to mess with the mesh in the RA axis, as it never changes direction, so that’s pointless, but the DEC is always good to check out…👍🏻
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I would disagree to the point of if you have backlash in RA it can affect the responsiveness of that axis to it's corrective guide impulses.
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| @Dustin Enfinger Only if the correction rate is greater than the sidereal rate. If the correction rate is say 0.8 that if the sidereal rate then it would simply slow down the tracking and not reverse the direction, then the gears will still be engaged and just moving slower
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Dustin Enfinger:
I would disagree to the point of if you have backlash in RA it can affect the responsiveness of that axis to its corrective guide impulses.
Well I would love you to explain how it can have any effect at all, when the gears are constantly engaged and moving in the same direction, the lash is totally 100% moot…it’s just a complete none issue on the RA axis…
sorry but we will agree to totally disagree…
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AstroShed:
Dustin Enfinger:
I would disagree to the point of if you have backlash in RA it can affect the responsiveness of that axis to its corrective guide impulses.
Well I would love you to explain how it can have any effect at all, when the gears are constantly engaged and moving in the same direction, the lash is totally 100% moot…it’s just a complete none issue on the RA axis…
sorry but we will agree to totally disagree
*Hands Up* I apologize Stewart. I didn't realize I was challenging that which you've passed out doctorates degrees on...
Rather than guide impulse responsiveness, because I do agree with you on that in fact, what I did see an improvement in was the amount of oscillation in RA after adjustment. You'll have to forgive me, it's 3:24am here and I just finished a chest/back superset workout in the gym about an hour ago.
With the tighter meshing much lower aggression values are necessary and avoid overshooting.
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Dustin Enfinger:
AstroShed:
Dustin Enfinger:
I would disagree to the point of if you have backlash in RA it can affect the responsiveness of that axis to its corrective guide impulses.
Well I would love you to explain how it can have any effect at all, when the gears are constantly engaged and moving in the same direction, the lash is totally 100% moot…it’s just a complete none issue on the RA axis…
sorry but we will agree to totally disagree
*Hands Up* I apologize Stewart. I didn't realize I was challenging that which you've passed out doctorates degrees on...
Rather than guide impulse responsiveness, because I do agree with you on that in fact, what I did see an improvement in was the amount of oscillation in RA after adjustment. You'll have to forgive me, it's 3:24am here and I just finished a chest/back superset workout in the gym about an hour ago.
As I stated above, we will agree to totally disagree..😉 have a good day…
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AstroShed:
Dustin Enfinger:
AstroShed:
Dustin Enfinger:
I would disagree to the point of if you have backlash in RA it can affect the responsiveness of that axis to its corrective guide impulses.
Well I would love you to explain how it can have any effect at all, when the gears are constantly engaged and moving in the same direction, the lash is totally 100% moot…it’s just a complete none issue on the RA axis…
sorry but we will agree to totally disagree
*Hands Up* I apologize Stewart. I didn't realize I was challenging that which you've passed out doctorates degrees on...
Rather than guide impulse responsiveness, because I do agree with you on that in fact, what I did see an improvement in was the amount of oscillation in RA after adjustment. You'll have to forgive me, it's 3:24am here and I just finished a chest/back superset workout in the gym about an hour ago.
As I stated above, we will agree to totally disagree..😉 have a good day…
I shall, and you as well good sir.
*Just thought of a funny skit akin to something Monty Python. Instead of a drive-by shooting, a drive-by disagreement.
"Driving the lorry down Aperture Alley loaded with both the end of his marriage and the obligatory "clouds for months" (as if the UK hasn't enough clouds already to begin with) slowly behind the man ambling down the footpath. He can make out enough of the man's flustered proclamations "It's a non-issue!" "Someone needs to adjust your gear meshing, lad" to ID his target...
The driver downshifts and leans on the accelerator enough to let out a plume of diesel exhaust as the truck moves along side the rambling ambler startling him with both the noise and abrupt appearance in his periphery.
"Oi, Stewart..."
*Solid 15 second stare with no expression. Not even a blink"
"I disagree!!!"
*Speeds off*
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Dustin Enfinger:
AstroShed:
Dustin Enfinger:
AstroShed:
Dustin Enfinger:
I would disagree to the point of if you have backlash in RA it can affect the responsiveness of that axis to its corrective guide impulses.
Well I would love you to explain how it can have any effect at all, when the gears are constantly engaged and moving in the same direction, the lash is totally 100% moot…it’s just a complete none issue on the RA axis…
sorry but we will agree to totally disagree
*Hands Up* I apologize Stewart. I didn't realize I was challenging that which you've passed out doctorates degrees on...
Rather than guide impulse responsiveness, because I do agree with you on that in fact, what I did see an improvement in was the amount of oscillation in RA after adjustment. You'll have to forgive me, it's 3:24am here and I just finished a chest/back superset workout in the gym about an hour ago.
As I stated above, we will agree to totally disagree..😉 have a good day…
I shall, and you as well good sir.
*Just thought of a funny skit akin to something Monty Python. Instead of a drive-by shooting, a drive-by disagreement.
"Driving the lorry down Aperture Alley loaded with both the end of his marriage and the obligatory "clouds for months" (as if the UK hasn't enough clouds already to begin with) slowly behind the man ambling down the footpath. He can make out enough of the man's flustered proclamations "It's a non-issue!" "Someone needs to adjust your gear meshing, lad" to ID his target...
The driver downshifts and leans on the accelerator enough to let out a plume of diesel exhaust as the truck moves along side the rambling ambler startling him with both the noise and abrupt appearance in his periphery.
"Oi, Stewart..."
*Solid 15 second stare with no expression. Not even a blink"
"I disagree!!!"
*Speeds off*
Have no clue what the hell you are on about…but I have better things to do that read this shit….
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AstroShed:
Dustin Enfinger:
AstroShed:
Dustin Enfinger:
AstroShed:
Dustin Enfinger:
I would disagree to the point of if you have backlash in RA it can affect the responsiveness of that axis to its corrective guide impulses.
Well I would love you to explain how it can have any effect at all, when the gears are constantly engaged and moving in the same direction, the lash is totally 100% moot…it’s just a complete none issue on the RA axis…
sorry but we will agree to totally disagree
*Hands Up* I apologize Stewart. I didn't realize I was challenging that which you've passed out doctorates degrees on...
Rather than guide impulse responsiveness, because I do agree with you on that in fact, what I did see an improvement in was the amount of oscillation in RA after adjustment. You'll have to forgive me, it's 3:24am here and I just finished a chest/back superset workout in the gym about an hour ago.
As I stated above, we will agree to totally disagree..😉 have a good day…
I shall, and you as well good sir.
*Just thought of a funny skit akin to something Monty Python. Instead of a drive-by shooting, a drive-by disagreement.
"Driving the lorry down Aperture Alley loaded with both the end of his marriage and the obligatory "clouds for months" (as if the UK hasn't enough clouds already to begin with) slowly behind the man ambling down the footpath. He can make out enough of the man's flustered proclamations "It's a non-issue!" "Someone needs to adjust your gear meshing, lad" to ID his target...
The driver downshifts and leans on the accelerator enough to let out a plume of diesel exhaust as the truck moves along side the rambling ambler startling him with both the noise and abrupt appearance in his periphery.
"Oi, Stewart..."
*Solid 15 second stare with no expression. Not even a blink"
"I disagree!!!"
*Speeds off*
Have no clue what the hell you are on about…but I have better things to do that read this shit….
It's called humor. Perhaps you've heard of the phenomenon?
And clearly not, you're still responding as crotchety as ever...
"than"
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Dustin Enfinger:
AstroShed:
Dustin Enfinger:
AstroShed:
Dustin Enfinger:
AstroShed:
Dustin Enfinger:
I would disagree to the point of if you have backlash in RA it can affect the responsiveness of that axis to its corrective guide impulses.
Well I would love you to explain how it can have any effect at all, when the gears are constantly engaged and moving in the same direction, the lash is totally 100% moot…it’s just a complete none issue on the RA axis…
sorry but we will agree to totally disagree
*Hands Up* I apologize Stewart. I didn't realize I was challenging that which you've passed out doctorates degrees on...
Rather than guide impulse responsiveness, because I do agree with you on that in fact, what I did see an improvement in was the amount of oscillation in RA after adjustment. You'll have to forgive me, it's 3:24am here and I just finished a chest/back superset workout in the gym about an hour ago.
As I stated above, we will agree to totally disagree..😉 have a good day…
I shall, and you as well good sir.
*Just thought of a funny skit akin to something Monty Python. Instead of a drive-by shooting, a drive-by disagreement.
"Driving the lorry down Aperture Alley loaded with both the end of his marriage and the obligatory "clouds for months" (as if the UK hasn't enough clouds already to begin with) slowly behind the man ambling down the footpath. He can make out enough of the man's flustered proclamations "It's a non-issue!" "Someone needs to adjust your gear meshing, lad" to ID his target...
The driver downshifts and leans on the accelerator enough to let out a plume of diesel exhaust as the truck moves along side the rambling ambler startling him with both the noise and abrupt appearance in his periphery.
"Oi, Stewart..."
*Solid 15 second stare with no expression. Not even a blink"
"I disagree!!!"
*Speeds off*
Have no clue what the hell you are on about…but I have better things to do that read this shit….
It's called humor. Perhaps you've heard of the phenomenon?
And clearly not, you're still responding as crotchety as ever...
"than"
😂😂😂😂😂😂😂 is that better…
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