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Equipment Discussions >> Classic Telescopes

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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Introduction and my project
      #5620819 - 01/13/13 01:44 PM

Hi everyone.

Iím not new to cloudy nights on the classified side, but Iíve posted very little here in the forums. I wanted to introduce myself as I have just made a purchase of a classic scope and wanted, quite frankly, a little help with it. I believe most here are over qualified!

The telescope in question comes from Paul in New York. He has taken quite good care of it and it is in very nice condition. I want to restore it to new or better than new condition.

I have been in contact with Jon Miles (PiSigma) and have read his incredible restoration project of his Super chrome deluxe. I followed (avemanís threads also and scoured his website for info. Iíve also read almost everything here in the forum on the subject. It has truly inspired me to complete a restoration fitting for this historical scope. . I can say I am a bit handy with tools and Iím usually not squeamish about taking things apart. That said, I realize there are no second chances with some of the parts. I need help on proper ways to do certain things. I have to say I admire the depth of knowledge when someone here explained the proper way to separate the glass in a finder objective, ďTo separate the main refractor glass objective, boil in a solution of sulfuric acidĒ How do you guys know this stuff??

Of course I know the answer, experience and knowledge. OK, Iím not trying to stroke everyoneís egos, just recognizing a knowledgeable source of information that Classic Telescopes brings to the Internet. I believe Iím in good hands.

And now for the scope in question: Cave Astrola 10Ē F6 Super chrome deluxe.

I was hesitant in posting this, as I am not in possession of the scope yet. It still resides in New York with Paul. Iíve made arraignments to pick it up when I visit NEAF in April (if I can wait that long!). I have some questions and I need to aquire a few parts to complete the project and I figured I could get started, as parts may not be readily available.

Well, thatís about it to start. I would like to thank you all in advance for any support you can give me. I will be posting here and to a Google+ page with updates. I will have lots of pictures and videos on the Google+ page ; everything from picking up the scope up and talking with the previous owner Paul, to polishing on the bench, and of course, implementing your suggestions.

Iím 60 years young, my wife and I live in Canfield Oh (NE Ohio) and I am involved in astrophotography. This would be my second restoration.

PS: Iíve got pictures!

Turk
Tom Terleski


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dgreyson
scholastic sledgehammer
*****

Reged: 11/06/12

Loc: South Carolina
Re: Introduction and my project new [Re: turk123]
      #5620931 - 01/13/13 02:32 PM

Hi Turk! I've got a 12.5 cave that I am in the process of restoring too. Hopefully, we wont need any boiling Sulfuric acid, but a lot of elbow work is definitely going to be in order.

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Grava T
Pooh-Bah
*****

Reged: 06/18/08

Loc: Quebec, Canada
Re: Introduction and my project new [Re: dgreyson]
      #5620985 - 01/13/13 02:53 PM

Hello Turk! There are many members here with experienced restoration techniques but I am not one of them. Problem is that I don't have a workshop/garage nor the space to build one and my wife would string me up if I started sanding metal or painting in the apartment.

I will be following your post though and look forward to seeing some photos along the way. Good luck and happy restoring.


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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Introduction and my project new [Re: Grava T]
      #5621002 - 01/13/13 02:59 PM

+dgreyson
I hope acid is not in my future. I do have a great bench grinder with assorted pads and a nice dremmel that should get a workout.

+Gravat
My son's wife has a table saw in their living room! They have an apartment also. Doesn't stop them!

I will get some photos up here.

Turk


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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Introduction and my project new [Re: turk123]
      #5621013 - 01/13/13 03:03 PM Attachment (29 downloads)

Here is the "before" picture. Not bad at a distance, but can need some help in some areas.

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sgorton99
Post Laureate
*****

Reged: 04/30/08

Loc: Wisconsin, Madison
Re: Introduction and my project new [Re: turk123]
      #5621023 - 01/13/13 03:06 PM

I think it looks pretty nice now! How fun with your project.
Steve


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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Introduction and my project new [Re: sgorton99]
      #5621054 - 01/13/13 03:23 PM Attachment (18 downloads)

Quote:

I think it looks pretty nice now! How fun with your project.
Steve




It wasn't a "hidden in a barn" find, and I paid a bit more for it. It does have it's flaws.

Here is another pict of the mount. There is no DEC motor, something I would like to add to this. It also has no controller.


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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Introduction and my project new [Re: turk123]
      #5621057 - 01/13/13 03:25 PM Attachment (12 downloads)

The chrome is a bit shabby in areas also

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starman876
Postmaster
*****

Reged: 04/28/08

Loc: VA
Re: Introduction and my project new [Re: turk123]
      #5621083 - 01/13/13 03:42 PM

wish i had a shabby looking cave like that

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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Introduction and my project new [Re: starman876]
      #5621096 - 01/13/13 03:50 PM Attachment (13 downloads)

Quote:

wish i had a shabby looking cave like that




Sorry Just trying to be a bit humble. I do appreciate it's condition.

Here is the mirror:


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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Introduction and my project new [Re: turk123]
      #5621102 - 01/13/13 03:52 PM Attachment (14 downloads)

and another of the mirror.

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chuck52
sage
*****

Reged: 12/03/09

Loc: Quartz Hill,California
Re: Introduction and my project new [Re: turk123]
      #5621111 - 01/13/13 03:56 PM

Hi Turk!
Congrats on the scope purchase.I too am in the process of a Cave restoration, a 10 inch F7. This is my first attempt at a scope restoration and like you I have read many of the fine threads on Cave refurbishment in this forum.I will be anxious to see your progress! I dont think I could wait till April though!


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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Introduction and my project new [Re: chuck52]
      #5621148 - 01/13/13 04:21 PM

Hi chuck

I'm worried I won't make it to April either. I have lots of other work to finish before I begin this project. But I hear it calling and my wife will always take a long weekend to go to NYC.


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Grava T
Pooh-Bah
*****

Reged: 06/18/08

Loc: Quebec, Canada
Re: Introduction and my project new [Re: turk123]
      #5621161 - 01/13/13 04:26 PM

Looks nice. You're gonna have a lot of fun with it. I had a 6" f/8 Cave Student Standard once and the views were amazing.

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dgreyson
scholastic sledgehammer
*****

Reged: 11/06/12

Loc: South Carolina
Re: Introduction and my project new [Re: turk123]
      #5621206 - 01/13/13 04:48 PM Attachment (10 downloads)

Quote:

Here is another pict of the mount. There is no DEC motor, something I would like to add to this. It also has no controller.




You have the Declination clutch and mounting plate. The motor it uses is scarce and expensive $200+ as it's a reversable gearmotor but they can be found. The real problem is getting the coupling gear that mates the motor shaft to the worm. it's fixed on the motor shaft and if you do not have the old motor you will need to fit a flexible coupler or something to the worm shaft to drive it.. Hopefully, if you do not have the motor gear, maybe one of the other readers has a spare one.

Stalled synchronus motors can be rejuvinated if you have one and it seems dead as long as the gear train is intact.

The controller is a small rectangular utility box that fits in your hand comfortable, it has two SPST N.O. pushbuttons and a motor capacitor and has a three wire cable that goes to the main clock drive and should plug into a socket there. Mine has a round DIN plug and socket. So the only bottle necks are having a motor and it's coupling gear. The rest are off the shelf items you can get fron Newark or Digi-Key.


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dgreyson
scholastic sledgehammer
*****

Reged: 11/06/12

Loc: South Carolina
Re: Introduction and my project new [Re: dgreyson]
      #5621222 - 01/13/13 04:55 PM Attachment (11 downloads)

Here is a photo of the control box and the dec motor. Notice the coupling gear on the end of the motor shaft. Since you have a slow motion knob on the dec gear, you likely are missing both sides of the coupler. Flexible couplers are readily available from various industrial supplies.

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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Introduction and my project new [Re: dgreyson]
      #5621346 - 01/13/13 06:01 PM

Quote:

Quote:

Here is another pict of the mount. There is no DEC motor, something I would like to add to this. It also has no controller.




You have the Declination clutch and mounting plate.




Are you saying all I am missing is the motor and of course the connector? I need to find an Astrola gravesite. If anyone has a motor I would certainly be happy to buy it off you.

Im not so worried about finding the control box as it can be made pretty close to original. Looked like a simple aluminum box. Has anyone drawn a schematic of the wiring? That would be useful.

Turk


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PiSigma
Carpal Tunnel
*****

Reged: 10/14/09

Loc: North Carolina
Re: Introduction and my project new [Re: turk123]
      #5621419 - 01/13/13 06:42 PM

There is a great schematic on the Cavetelescopes Yahoo group in the files section. Not sure if this link works if you are not a member:

Cave wiring schematic with Dec drive


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turk123
Carpal Tunnel
*****

Reged: 07/09/10

Loc: N.E. Ohio
Re: Introduction and my project new [Re: PiSigma]
      #5621454 - 01/13/13 07:02 PM

Got it. That's great Jon. Guess I wish I was dealing with 12v DC, but I'm sure I can get through it. If I'm not mistaken, didn't your cave have an aluminum box with two red buttons? Different than the one posted here earlier.

Turk


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PiSigma
Carpal Tunnel
*****

Reged: 10/14/09

Loc: North Carolina
Re: Introduction and my project new [Re: turk123]
      #5621470 - 01/13/13 07:11 PM Attachment (9 downloads)

Yes. Here's mine. I have a letter from the original owner to Cave complaining about it being damaged in shipping. He never fixed it. Left is original paint and still bent, right is after restoration. Painted Rustoleum hammered silver. But I think later ones were black.

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