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Equipment Discussions >> ATM, Optics and DIY Forum

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stardustborn
member


Reged: 11/30/07
Posts: 54
Loc: LI, New York
The joy of a project.........completed ?
      #3415321 - 10/28/09 01:07 AM

For the last three years I've been wrestling with the construction of my mount. It started as an attempt to make a mount as cheaply and simply as possible. Materials at hand included 1/4" aluminum plate, various pieces of thick wood laminate trusses, steel support lolly columns and the pieces of my TL systems eq platform.

My philosophy was to try the simplest thing first. Thus my first attempt was a lolly column axle on pvc pipe fitting bushings....ahem. Too simple. Then I tried nylon bushings, then steel castors, then I tried roller transfer bearings, then I tried real bearings mounted to carry the drive sector,didn't work either, and then finally with real bearings on a real steel shaft, the shaft stiffened with the lolly column filled with concrete I finally achieved smooth motion. I won't even go into all the variations of drive system wheels and surfaces and configurations I tried except to say I came full circle back to steel wheel on wood.

Then there was the matter of integrating the Orion intelliscope system. Finding my ascension declination axis's were not perpendiculer. How to measure and correct same. Finding I needed a way to rotate the scope. Realizing I needed to make a shed for it because by now it weighed 200 lbs. Pier. Deck extension. Ethernet cables to inside the house.

Anyhow you get the picture. A lot of work. So it was with extreme satisfaction, that the other night, I finally found myself under clear moonless skies with a scope with clean collimated optics, laser, finder scope main scope and imaging scope all aligned, stepper motor at the right speed, it's wheel gripping and rolling nicely and my digital setting circles and the planetarium software playing nice and giving me accurate push-to's and leading me to some cool obscure open clusters among other things.

Don't get me wrong. I loved doing it all. The dissapointments and failures led to that most enjoyable part of it all, the joy of creating. The fun of thinking up a new way and then trying it out. In retrospect I was pretty stupid about some things and made it harder on myself than was necessary. It stretched my mind to try to come grips with the whole geometry of the thing, spatial relationships etc. and although my friends are impressed, for some reason I feel humbled. I'm maybe not as smart as I thought I was. Just smart enough to get myself into trouble.

Anyhow, I thought you guys could relate. I just have to crow a little after all this even though she's a turkey.

I'm not sure if I can handle being done with it. What am I gonna do now!

What's that? A little shakiness? I wonder how a trailer hub bearing wheel setup might work......................................


John

I have to update my Picassa page but it'll give you the basic idea of what I did if you need a laugh.

--------------------
Orion xt10i on an ugly homemade english fork eq mount
A stepper motor,wires and stuff
Push to digital circles(COL) into "The Sky"
"The Noble Turkey Observatory".... (a small shed)
http://picasaweb.google.com/stardustborn/NobleTurkeyObservatory
Orion Starblast 4.5 imaging scope
Meade DSI 2 pro mono

...and a piece of space to peer into


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neo
professor emeritus
*****

Reged: 02/12/08
Posts: 610
Loc: Iasi, Romania
Re: The joy of a project.........completed ? new [Re: stardustborn]
      #3415462 - 10/28/09 04:06 AM

I'm with you there, man!

Don't be to hard on yourself. Like you said, it's all about being creative. It's not so easy being suddenly engineer, optician and astronomer in one. That's why lots of people like to go fishing instead working in sweat on weekends to get his personal scope/observatory up and running.
Changing things all the time is part of the creativity thing. I guess helps in defining yourself and to find that sweet spot when everything fits in place.
It's not a matter of being smart or not....simply you can't have experience in every thing on this world....and frankly building scopes and making them right, not just toys to pass time, is not exactly piece of cake. It requires especially lots of knowledge about many aspects, and you don't learn all those things in school.

Let's not forget that most of us can't just do ATM all the day long (I'm really jelous on whom can.. ), because we have to take care of our jobs, families, etc.
So I guess what I'm trying to say is that all the struggle to build something good with your hands is no laughing matter.
And ATM is one of the greatest hobby, if not passion, a man can have. I'm not sure about those tuning up their Mustangs in their shops over night to race the next day....I guess that's addicting too

By the way, great set up you have in there!

Clear sky and good luck for your future projects!
Alex

--------------------
Russian 15x50 binos
Home made 8" f/5 Newton on eq mount
Home made 70mm f/6 (Rodenstock Rotelar lens) Apo refractor
www.astronomy.ro


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magic612
professor emeritus
*****

Reged: 09/30/08
Posts: 548
Loc: Somewhere south of Chicago, IL
Re: The joy of a project.........completed ? new [Re: stardustborn]
      #3415716 - 10/28/09 09:54 AM

That's why some of us ATM'ers have at least a few projects going at once. There's always one we can work on!!

But in truth, it's a wonderful thing when a project is completed. And if the aesthetics bother you, well... that's another project you can work on, right? But if what matters is that A) it works for you and B) you're enjoying it, then who cares what it looks like?

I certainly appreciate and definitely "oooh" and "ahhh" over the gorgeous works of telescopic art that some of the master builders here share. And for me personally, I do like to have a "somewhat completed" look to my scopes. Yet, at the same time, I'm not concerned with the artistry of my scopes and other projects; I want them to work and be functional.

I paint my scopes and mounts with boring black and white. Yet, because of that, I've never had anyone trip over my equipment, because the contrast can be easily seen in the dark. And they work as intended (well, eventually!). Everyone makes mistakes - that's part of how we learn what works and what doesn't. Nothing wrong with trying "simple" first, and moving up to complicated if "simple" doesn't work. Go with what works! And if it doesn't, change it til it does.

When we're building something for $200 because we can't afford the $5000 retail product, and we have to try different things to make it work, it's because A) no one's done exactly the same thing before or B) we don't have the same materials the other guy in the other thread had, so we work with what we do have.

I like what you did, and the important question is this: Does it work for you? If so, great job!!

--------------------
- Celestron C8+, Orion 90mm f/10, Orion ST-80, 5" f/8 Dob, 127mm f/9.4 refractor, 114mm f/8 on DS GoTo, 60mm Sears 6333-A, 127mm f4.4 refractor lens (current project), 12" f/5 mirror (future project)
- Orion Vista 10x50s (5 deg), Sears #6207 7x35 (7 deg), Jason #138 Statesman 7x35 (11.5 deg)

Yes, I'm addicted to telescopes and binoculars. I am getting help. Every time I look at the heavens, it helps.

http://www.eyesonthesky.com


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stardustborn
member


Reged: 11/30/07
Posts: 54
Loc: LI, New York
Re: The joy of a project.........completed ? new [Re: magic612]
      #3416371 - 10/28/09 03:42 PM

Thanks guys. And yeah this ATM stuff can be hard can't it. Some make it look easy. (You know who you are, with your gleaming woodwork and impressive cad/cam engineering drawings). I'm like a shoemaker trying to paint a masterpiece. Tough to do with shoes and polish. But yeah it works, is comfortable, paid off, and one of a kind. With a little teak veneer and paint (the white paint is a good idea), who knows, maybe the turkey could be a swan.

John

--------------------
Orion xt10i on an ugly homemade english fork eq mount
A stepper motor,wires and stuff
Push to digital circles(COL) into "The Sky"
"The Noble Turkey Observatory".... (a small shed)
http://picasaweb.google.com/stardustborn/NobleTurkeyObservatory
Orion Starblast 4.5 imaging scope
Meade DSI 2 pro mono

...and a piece of space to peer into


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John Jarosz
Astro Gearhead
*****

Reged: 04/25/04
Posts: 2287
Loc: Chicago area, IL
Re: The joy of a project.........completed ? new [Re: stardustborn]
      #3416691 - 10/28/09 06:42 PM

Actually I never actually finish anything. Make it so it's functional and then you can plan when to finish it, but you never actually do.

John

--------------------
6" F4.6(w/Paracorr) GEM reflector, 8" F11 Dall Relay Scope
6" F5 RFT Refractor, Garrett Gemini 20x80 LW


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