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Equipment Discussions >> Mounts

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Astroeksarheio
member


Reged: 03/14/13

Re: iEQ45 gear upgrade? new [Re: rkayakr]
      #6070089 - 09/08/13 07:02 PM

https://www.ioptron.com/index.cfm?select=productdetails&phid=c5f7604d-c97...

Mine is arriving tomorrow!


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Astronewb
Pooh-Bah
*****

Reged: 09/19/11

Loc: Connecticut
Re: iEQ45 gear upgrade? new [Re: rkayakr]
      #6071056 - 09/09/13 11:12 AM

Quote:

To do any of those I need to get the @#$^#@# set screws out. If I ever do, I would just as soon put the better parts in as disassemble and reassemble repeatedly.




Hi Bob, the set screws in the pulleys are 1.5mm allen type.

I found it best to grind off the short arm a bit to give increased room between the two pulleys. Hint: if you pull the housing up to disengage the worm, you can turn the pulleys with your fingers to allow access to the set screws, or simply power up the mount and slew in RA to access the screws.

I did a test of the new worm, and also the new style pulleys. The new pulleys did not perform as expected.

I also modified a set of Z pulleys (fine pitch) and installed them, they worked great.

Details can be found in this Flickr set, with annotations:

http://www.flickr.com/photos/astronewb2011/sets/72157635275957079/

Hope the info helps,

Paul

Edited by Astronewb (09/09/13 11:15 AM)


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rkayakr
sage
*****

Reged: 10/27/10

Loc: Northeast Ohio
Re: iEQ45 gear upgrade? new [Re: Astronewb]
      #6072013 - 09/09/13 08:07 PM

Paul

Thanks - A ball ended hex key did the trick for me.

I received the iOptron upgrade kit today. It contained a new worm, 2 bearings, a new pulley, a new encoder, a few bits of fastening hardware and, of course, no instructions. I have the December 2011 RA Worm Gear Cleaning instruction pdf and will use that as a guide unless someone has something more relevant.
Since a single pulley is provided I assume that there is no change to the belt/pulley system so that I will have the old style belt/pulleys.

I got a new puppy! Ursa Minor is a 10 week old female Golden Retriever. She should be a big help in the mount disassembly process, as long as she doesn't eat anything too important.

Bob


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: iEQ45 gear upgrade? new [Re: rkayakr]
      #6073840 - 09/10/13 08:10 PM

I's still testing mine, but I confirmed off line with Paul that mine is performing much better than my original worm gear.

Timm

And congrats on the new puppy!


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Astroeksarheio
member


Reged: 03/14/13

Re: iEQ45 gear upgrade? new [Re: timmbottoni]
      #6074441 - 09/11/13 06:22 AM

So the mix that would make our nights easier consists of ioptron's worm, Paul's belt/pulleys, better bearings and some cleaning/new grease maybe(superlube or else) ?

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: iEQ45 gear upgrade? new [Re: Astroeksarheio]
      #6075165 - 09/11/13 01:57 PM

Quote:

So the mix that would make our nights easier consists of ioptron's worm, Paul's belt/pulleys, better bearings and some cleaning/new grease maybe(superlube or else) ?




I have the new worm, and regreased it with SuperLube, and the new gear uses new bearings and one new pulley wheel, but the same pulley. So far, I think I'm set once I figure out the optimal PHD guiding settings for my setup. I still want to train the PEC and see how much of a difference it makes, but if one were simply to accept that guiding is always needed, I don't think I would bother with the PEC.

Having gone from around 60 arc sec of PE with some pretty steep ups and downs, to what I now estimate to be something like 6-15 arc sec of PE with a very smooth curve is really quite good in my opinion.

Timm


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: iEQ45 gear upgrade? new [Re: rkayakr]
      #6075176 - 09/11/13 02:04 PM

Quote:

Paul

Thanks - A ball ended hex key did the trick for me.

I received the iOptron upgrade kit today. It contained a new worm, 2 bearings, a new pulley, a new encoder, a few bits of fastening hardware and, of course, no instructions. I have the December 2011 RA Worm Gear Cleaning instruction pdf and will use that as a guide unless someone has something more relevant.
Since a single pulley is provided I assume that there is no change to the belt/pulley system so that I will have the old style belt/pulleys.

I got a new puppy! Ursa Minor is a 10 week old female Golden Retriever. She should be a big help in the mount disassembly process, as long as she doesn't eat anything too important.

Bob




If you can take the old one apart, you will be able to put the new one in as a replacement, and your old instructions are still relevant. The worm can only go one way, and the new bearings aren't directional. The new worm has a larger diameter shaft, which I think also helps (just a hunch), and the encoder seems to be unidirectional also.

Timm


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rkayakr
sage
*****

Reged: 10/27/10

Loc: Northeast Ohio
Re: iEQ45 gear upgrade? new [Re: timmbottoni]
      #6075309 - 09/11/13 02:52 PM

Timm
Got it apart and got the update that the bearings are no longer unidirectional. I have reassembled the worm several times but the shaft, although turnable by hand, is not easily turned. I'm going to complete the assembly and measure the current as soon as I acquire a meter that measures over 200 ma.


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: iEQ45 gear upgrade? new [Re: rkayakr]
      #6075483 - 09/11/13 04:26 PM

Quote:

Timm
Got it apart and got the update that the bearings are no longer unidirectional. I have reassembled the worm several times but the shaft, although turnable by hand, is not easily turned. I'm going to complete the assembly and measure the current as soon as I acquire a meter that measures over 200 ma.




If you don't mind, can you let me know how you measure the current? Mine isn't easily turned by hand either, but it sounds good when I run it, and I don't honestly know how to measure the current.

Thanks,

Timm


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rkayakr
sage
*****

Reged: 10/27/10

Loc: Northeast Ohio
Re: iEQ45 gear upgrade? new [Re: timmbottoni]
      #6075561 - 09/11/13 05:27 PM

Timm

I got a multimeter that measures current at Radio Shack. You put it inline in the power circuit:

positive source to positive (red) test lead
negative (black) test lead to mount positive power line

mount negative power line to negative source

Mine measures about 0.45 amp, varying from 0.39 to 0.49. The doc suggests less than 0.6 amp is good.

Bob


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Phillip Easton
sage


Reged: 12/24/10

Loc: DFW
Re: iEQ45 gear upgrade? new [Re: rkayakr]
      #6075935 - 09/11/13 09:48 PM

With what I had to measure the current I turned off the mount, took the mainboard out and put alligator test clamps on the switch connections. This completes the circuit and you can measure the current. I get around 0.45-0.5 amps when I measured mine.

Cheers!
Phillip


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: iEQ45 gear upgrade? new [Re: rkayakr]
      #6075962 - 09/11/13 10:03 PM

Quote:

Timm

I got a multimeter that measures current at Radio Shack. You put it inline in the power circuit:

positive source to positive (red) test lead
negative (black) test lead to mount positive power line

mount negative power line to negative source

Mine measures about 0.45 amp, varying from 0.39 to 0.49. The doc suggests less than 0.6 amp is good.

Bob


\

Can you show a picture of what you mean? Sorry I'm so dense on this one.

Timm


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Astroeksarheio
member


Reged: 03/14/13

Re: iEQ45 gear upgrade? new [Re: timmbottoni]
      #6076510 - 09/12/13 08:24 AM

would like to see a picture of that too. I believe i know how to measure it but i want to confirm it.

btw what do you guys think about koyo bearings for the worm? heard those bearings are of high quality


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rkayakr
sage
*****

Reged: 10/27/10

Loc: Northeast Ohio
Re: iEQ45 gear upgrade? new [Re: timmbottoni]
      #6076581 - 09/12/13 09:15 AM

Timm

Here is a short description:

http://laserpointerforums.com/f51/how-measure-current-42256.html

Where our mount goes in the circuit where the reference shows a light bulb.

Edited by rkayakr (09/12/13 09:19 AM)


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: iEQ45 gear upgrade? [Re: rkayakr]
      #6076987 - 09/12/13 01:15 PM

Thanks! I will see if I can try it on mine.

Timm


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: iEQ45 gear upgrade? new [Re: timmbottoni]
      #6082803 - 09/15/13 08:54 PM

My latest test results show a significant improvement over the original worm gear.

Timm


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Astroeksarheio
member


Reged: 03/14/13

Re: iEQ45 gear upgrade? new [Re: timmbottoni]
      #6083232 - 09/16/13 03:06 AM

Grats Timm. Its good to hear from many mouths that its working.
I reassembled mine too (without leaving any screws lol) but I havent measured current yet. Seems to work fine though the "laboring sound" that ioptron mentions in the manual is quite significant.
One thing i noticed with my little knowledge is that the shell/housing that holds the worm and motor is poorly crafted. Could barely make the worm sit right. Dont know if I am the lucky one but thats a part they should have made better.


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rkayakr
sage
*****

Reged: 10/27/10

Loc: Northeast Ohio
Re: iEQ45 gear upgrade? new [Re: Astroeksarheio]
      #6083363 - 09/16/13 07:48 AM

Good news Timm
Haven't been able to test mine yet.
The attachment holes for the worm housing are large so that you can line them up. iOptron mentions a temp-late at the factory, but we get to do it by feel.
I noticed that relieving the load on worm by even the smallest amount makes a huge improvement in how easy it is to turn.


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: iEQ45 gear upgrade? new [Re: rkayakr]
      #6084973 - 09/16/13 11:05 PM Attachment (15 downloads)

I'll load my results one JPG page at a time for everyone to see since there doesn't seem to be a way to upload a PDF file...

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: iEQ45 gear upgrade? new [Re: timmbottoni]
      #6084975 - 09/16/13 11:05 PM Attachment (17 downloads)

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