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Elli Buk Cave 10" Cassegrain

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#501 Chuck Hards

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Posted 02 July 2013 - 06:31 AM

One more of the focuser


Beautiful. Simply beautiful.

#502 turk123

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Posted 02 July 2013 - 09:11 PM

I sprayed the guide scope tube and finder tube with the paint that was color corrected to the main tube color. It looks really nice and I think will match perfectly. I'm going to try to buff the tube later with a light rubbing compound to get some very light overspray to polish out. Is that the correct way to do this?

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#503 turk123

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Posted 02 July 2013 - 09:11 PM

Second image of tube

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#504 turk123

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Posted 02 July 2013 - 09:13 PM

Here are a lot of black satin parts that were finished today. Black satin paint over green etching primer. It should hold up well.

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#505 turk123

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Posted 04 July 2013 - 06:06 PM

Here is the two button control box wired and finished.

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#506 turk123

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Posted 04 July 2013 - 06:07 PM

Reverse side with the "crinkle" black finish. Nice touch, eh?

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#507 turk123

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Posted 04 July 2013 - 06:08 PM

The original button were all but falling apart and faded. I looked everywhere for similar looking buttons with metal rings, but could not find anything. I settled for these and I like them, period.

#508 turk123

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Posted 04 July 2013 - 06:16 PM

I wanted to give you guys an idea how close the tube color came out. If you remember, I took the large tube to the paint store for color matching and they used a specialized camera and software to come up with the paint formula. Here is the finder I painted next to the tube. Any complaints? :grin:

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#509 tim53

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Posted 05 July 2013 - 12:18 AM

I approve!

#510 Chuck Hards

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Posted 05 July 2013 - 04:02 PM

Looks like you're getting dangerously close to completion and re-assembly, Tom. Got a finish date in mind yet?

Looking good!

#511 gelkin

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Posted 05 July 2013 - 04:48 PM

Where did you get the nice tube cap? I like it. :waytogo:

#512 turk123

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Posted 05 July 2013 - 05:07 PM

Looks like you're getting dangerously close to completion and re-assembly, Tom. Got a finish date in mind yet?


It slowly is going back together. I may be taking a week off to NYC so it could be 2-3 weeks. Parts are pretty much done.

#513 turk123

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Posted 05 July 2013 - 05:09 PM

Where did you get the nice tube cap? I like it. :waytogo:


These things are great and they make them same day as you order and send them out. I gave David my exact sizes and his wife makes them up.

http://www.rankinstu...ar_Scope_Covers

Saw the ad here in the classifieds.

#514 turk123

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Posted 05 July 2013 - 05:12 PM

Well, this guy is all together. Had to remove some paint from the focuser end for the tube to fit, but a little sanding and a drop of oil and it slipped on.

Still looking for the thumb screw. :foreheadslap:

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#515 dgreyson

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Posted 05 July 2013 - 05:18 PM

This scope is likely going to be better than new when youre finished.

#516 turk123

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Posted 05 July 2013 - 05:27 PM

This scope is likely going to be better than new when youre finished.


It should be. With the materials we have today (paint, etching primer, electronics) we can make these better then back then. I also have several hundred hours in this thing, something that Cave could not afford. He did do one thing right though, the mirrors! Can any of us honestly say (excluding David) we could make a better mirror? :question:

#517 Chuck Hards

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Posted 05 July 2013 - 05:41 PM

Where did you get the nice tube cap? I like it. :waytogo:


These things are great and they make them same day as you order and send them out. I gave David my exact sizes and his wife makes them up.

http://www.rankinstu...ar_Scope_Covers

Saw the ad here in the classifieds.


He just lives about 30 minutes from me. Nice caps, but I mold my own from fiberglass.

#518 turk123

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Posted 05 July 2013 - 05:47 PM

well of course you do Chuck! :foreheadslap:

#519 DAVIDG

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Posted 05 July 2013 - 08:58 PM

This scope is likely going to be better than new when youre finished.


He did do one thing right though, the mirrors! Can any of us honestly say (excluding David) we could make a better mirror? :question:

I think that is a compliment. :question: My advice to any vintage and antique telescope collector and restorer is to put as much effort into testing and restoring the the optics as you do restoring the mechanics of the scope. That way the view in the eyepiece will equal or exceed the view of looking at the telescope. You might be surprise at what you find out when you ACTUALLY test the optics in your scope on the bench vs assuming that they are as good as you think. The same rules of time vs money in the mechanical assembly of the telescope by the original manufacture also applies to the optics as well.

- Dave

#520 Dave M

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Posted 05 July 2013 - 09:14 PM

This scope is likely going to be better than new when youre finished.


He did do one thing right though, the mirrors! Can any of us honestly say (excluding David) we could make a better mirror? :question:

I think that is a compliment. :question: My advice to any vintage and antique telescope collector and restorer is to put as much effort into testing and restoring the the optics as you do restoring the mechanics of the scope. That way the view in the eyepiece will equal or exceed the view of looking at the telescope. You might be surprise at what you find out when you ACTUALLY test the optics in your scope on the bench vs assuming that they are as good as you think. The same rules of time vs money in the mechanical assembly of the telescope by the original manufacture also applies to the optics as well.

- Dave


I totally agree with David here, it is, in the end the optics that you want to be the best that they can possibly be. There`s places that will test and even touch up the figure if needed. We wouldnt restore a car and not do the engine :grin:

#521 turk123

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Posted 05 July 2013 - 09:37 PM

[/quote]

I totally agree with David here, it is, in the end the optics that you want to be the best that they can possibly be. There`s places that will test and even touch up the figure if needed. [/quote]

I agree also. So where can I send the mirrors and or the scope near Ohio? Or, if it is only the mirrors that need to be sent, who would you recommend to test them. What kind of costs are associated with testing and re-figuring a mirror?

Oh, and David, it was a compliment! You have great insight in areas that sometimes are too complex for me, and I know i can speak for all, we do appreciate your help anytime you chime in. :bow: :bow: :bow:

#522 Steve_M_M

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Posted 05 July 2013 - 09:46 PM

Dave has been a great help with all of his knowledge. I would not even have known where to start with the Tinsley. I know for sure it was a compliment :)

Your scope looks awesome! Makes me want to take all of mine out and do the same. The restoration is incredible. One of the best ever in my opinion.

#523 Dave M

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Posted 05 July 2013 - 10:15 PM

Tom, Lockwood custom optics does testing and refigureing.
as does Swayze Optical.
I never had any direct dealings with either but ive heard
nothing but good things regarding them.
I could say what they would charge..

#524 tim53

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Posted 05 July 2013 - 11:16 PM

If it were me (it isn't), I'd finish the restoration and out everything together before testing. Then star test using Suiter's book to guide you. And if it needs refiguring, sign up for the Delmarva mirror class next March and work with Dave directly to make it an excellent mirror!

Tim

#525 Chuck Hards

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Posted 05 July 2013 - 11:34 PM

Tim gives good advice. I would test the primary before installing it, however, since it's a good time to do it and a simple thing. At least a Ronchi or knife-edge, just to get an idea of the figure.






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