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 Post subject: Fixing up the dob....
PostPosted: Tue Mar 19, 2013 7:59 pm 
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molecule
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Ok, so I pulled out the dob, which is in sad condition. Along with cleaning it up, I probably should start
upgrading and such.

What online sites do you like for purchasing things like a Telrad or focuser? What items should I forget about buying used and just purchase new? I am thinking lower priced items would just be a new purchase.

I have a Hardin Deep Space Hunter. It is good enough for the amount of observing I do for now.

Thanks

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Aww man. How did I keep missing that all this time? Oh yeah, never got a Telrad!


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PostPosted: Wed Mar 20, 2013 4:11 pm 
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Glad to see you getting back into observing, Carolyn.

Moonlite is my choice for aftermarket focusers. The CR-1 and CR-2 are unparalleled. Don't forget flocking and a Destiny curved spider! :cool:

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-Erik Wilcox
Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
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Evolution is both fact and theory. Creationism is neither. -Anonymous


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PostPosted: Wed Mar 20, 2013 4:22 pm 
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Velocepedist
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Another vote for the Moonlite focuser. Additionally, the CR1 is the lightest crayford focuser I am aware of that can handle monster eyepieces and cameras alike. Not to mention awesome colors. Focuser.com

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PostPosted: Wed Mar 20, 2013 4:38 pm 
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molecule
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Thanks, guys.
Erik, it felt pretty good looking at the sky again.

My focuser has never been al that great. Even if I greaase it up, it probably wouldn't be all that smooth.

Seems like all the upgrades haven't changed but I haven't kept up with the vendors, and it looks like a bunch of them no longer exist.

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Aww man. How did I keep missing that all this time? Oh yeah, never got a Telrad!


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PostPosted: Wed Mar 20, 2013 7:00 pm 
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Steely-Eyed Missile Man
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I'm a little more torn. I had a Moonlight on my old 10" dob. Personally I loved it, but I will say the Feathertouch is a better focuser. For aftermarket Moonlite is tough to beat for the price, but the FT is smoother IMHO.

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PostPosted: Sat Mar 23, 2013 8:39 pm 
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molecule
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I looked at those... Expensive, yes?

I am thinking the moonlite focusers are good and reasonable. I also need to work on the alt/az movement..... They are terrible. Will try the fixes I have been reading about. Wish me luck.

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Aww man. How did I keep missing that all this time? Oh yeah, never got a Telrad!


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PostPosted: Sun Mar 24, 2013 10:31 am 
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Carolyn,

I'd recommend a Lazy Susan. They are inexpensive and with larger dobs they work better than magic sliders or Teflon for the azimuth motions. In fact, it is often TOO smooth and you have to add friction. I think the Hardin uses a lazy Susan but it sounds like it may have worn out or perhaps that dirt or debris in it- you might try spraying the ball bearings with WD40.

If you don't want to use a lazy Susan, try some ebony star laminate and large magic sliders (the ones with a screw hole in the middle so they can be mounted). That should work.

_________________
-Erik Wilcox
Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
-The Great Paul Krugman

Evolution is both fact and theory. Creationism is neither. -Anonymous


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PostPosted: Sun Mar 24, 2013 12:27 pm 
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molecule
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Hey Erik,

The base is made of 2 plates that are held in place by a center screw with a plastic tibe around it. The upper plate floats on 3 very small Teflon pads. I had tried some sliders but had removed thm. I forgot that I had not cleaned off the old adhesive. I will give it a good cleaning but I am back to where I was when I got it. Still not good. I will look into the lazy Suzan. Thanks.

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Aww man. How did I keep missing that all this time? Oh yeah, never got a Telrad!


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PostPosted: Sun Mar 24, 2013 4:57 pm 
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Sounds good, Carolyn- please post pics!

I've seen large dobs with lazy Susan's where you could push it with one finger and it would swing around 180 degrees. Tightening the center nut is usually a good way to increase friction.

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-Erik Wilcox
Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
-The Great Paul Krugman

Evolution is both fact and theory. Creationism is neither. -Anonymous


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PostPosted: Thu Apr 04, 2013 5:12 pm 
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molecule
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I cleaned up the base ands put a couple of CDs , it was a lot smoother but had some wobble so that won't do it.
I did some research on using a lazy Susan with a brake to slow it down. I am thinking that is the way to go.

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Aww man. How did I keep missing that all this time? Oh yeah, never got a Telrad!


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PostPosted: Fri Apr 05, 2013 8:48 am 
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Velocepedist
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Location: In search of the ultimate switchbacks and single tracks
Carolyn, I made the same upgrade on my old 12" Hardin dob and went with this:

Scopestuff.com

Best money I ever spent on the dob.

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Jason® (Admin...and spoke-folk)
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Single ride personal records: Distance-76.7miles, Max Speed-50.4mph, Max sustained speed (20miles) 19.5mph
“Life is like riding a bicycle. To keep your balance, you must keep moving.” ― Albert Einstein


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PostPosted: Fri Apr 05, 2013 7:40 pm 
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molecule
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Thanks for the link.

I have the 8 inch. It pretty much needs all the typical upgrades.

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Aww man. How did I keep missing that all this time? Oh yeah, never got a Telrad!


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