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Equipment Discussions >> Classic Telescopes

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Dave M
Postmaster
*****

Reged: 08/03/04

Loc: Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: Masvingo]
      #6025317 - 08/14/13 02:51 PM

Looking Top Notch, You certainly have the touch.

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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
>>>BEFORES and AFTERS<<<( Part 1) new [Re: Masvingo]
      #6025801 - 08/14/13 07:06 PM

Any tips for straightening the pinion?

Well,,, James,, This is how I did it....If one side of the pinion is bent, that is fairly easy. I found the bent side and chucked it up in my drill press, then set up a dial indicator on the other end , and found the high side of the run out ,by turning the chuck by hand, (no power). Then took a small nylon mallet and tapped the high side end of the pinion and checked the run out again. repeat and repeat till true. Hope this helps Tom

Edited by TOM KIEHL (08/14/13 07:07 PM)


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SteveNH
professor emeritus
*****

Reged: 07/10/11

Loc: Millbrae, CA
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6025840 - 08/14/13 07:34 PM

Tom, thank you also from me for that ingenious tip - I had a bent pinion on one side of my 7TE-5 focuser as well, and eyeballed it best I could as I tapped it sraight, sandwiched between wood for protection. But of course it still has a slight wobble after my best efforts. - To the drill press it is! By the way, you did an incredible job straightening the metal spreader tabs that hold the eyepiece tray - I used a mallot, and it still shows a slight ripple. Your telescope truly does look like something out of a time machine.

Steve


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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: SteveNH]
      #6025988 - 08/14/13 09:02 PM

Thanks Steve , for the compliment, But if both sides of the pinion are bent ,I have set the pinion up between a set of V blocks useing the dial indicator to indicate the high side of the run out once again. I use a nylon of wood 1/4" dowel rod and small tack hammer to pinpoint my strikes to the high side, on both sides of the pinion. Until true or at least very close.

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Larry Geary
Carpal Tunnel
*****

Reged: 09/24/06

Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6028912 - 08/16/13 10:55 AM

Pardon my ignorance, but what does boiled linseed oil and mineral spirits applied with 0000 steel wool do for the tripod legs? I have some tripod legs in great shape that I've applied Liquid Gold to and intended to wax. I have another set of dark tripod legs from a Tasco 7TE that have numerous scratches down to the wood, below the stain. Would the linseed oil etc be useful in either of these situations? Or do the darker legs need restaining?

BTW, what finish of black paint looks best - satin or gloss?


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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: Larry Geary]
      #6029333 - 08/16/13 02:45 PM Attachment (8 downloads)

O-TAY' a finished O.T.A.,,, Touched up some minor scratches, cleaned , and waxed, cleaned the optics and assembled. Now on to the wooden case.

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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6029335 - 08/16/13 02:46 PM Attachment (8 downloads)

#2 ota

Edited by TOM KIEHL (08/16/13 02:47 PM)


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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6029339 - 08/16/13 02:48 PM Attachment (4 downloads)

#3 ota

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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6029340 - 08/16/13 02:48 PM Attachment (6 downloads)

#4 ota

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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6029343 - 08/16/13 02:49 PM Attachment (5 downloads)

#5 ota

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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: Larry Geary]
      #6029449 - 08/16/13 03:53 PM Attachment (4 downloads)

Larry, I'm not one to upset original paint or finish ,unless it is absolutely necessary . I found that in restoring antique AM radios, the wooden cases finish had alot of dirt, grime, and scratches on them. I read that if you mix equal parts of mineral spirts or terpintine with boiled linseed oil and apply lightly with 0000 steel wool,this would lift the dirt and grime and hide alot of the scrathes also. It's also good to remove a paint scuff on the wood finish and revitalize the clear finish.

Gloss or satin black paint? you just have to judge for yourself, if it's has alot of shine, go with gloss, if it don't I would say satin.

Chips and scratches, I use a 10/0 sable brush, mix the paint to match and fill just the chip or scratch with paint and let dry . Then wet sand with 2000 grit, just the fill, til level, polish ,then bury it in wax..
All the above takes alittle longer to do,,,,BUT if classic telescopes are anything like the classic bicycles I also restored, collectors prefer ORIGINAL PAINT.
Remember.... "They are only original once...You can repaint everyday." Good book...The furniture Doctor by George Grotz

Edited by TOM KIEHL (08/16/13 04:56 PM)


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Dave M
Postmaster
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Reged: 08/03/04

Loc: Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6029775 - 08/16/13 07:17 PM

The tube turned out Great!

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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: Dave M]
      #6030028 - 08/16/13 10:38 PM

Thanks Dave , Yeah all I have to do now is the box and put it all together for first light and do a shoot out with the 7T and the 7TE-5

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Masvingo
scholastic sledgehammer
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Reged: 01/10/12

Loc: Ayrshire, Scotland
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6030293 - 08/17/13 02:39 AM

Thanks Tom, That will come in handy as the pinion on my Topic is bent and needs some attention.

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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: Masvingo]
      #6030769 - 08/17/13 11:40 AM

Takes alittle time Jim, but what are you to do? gota give it a try.

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dgreyson
professor emeritus
*****

Reged: 11/06/12

Loc: South Carolina
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6030834 - 08/17/13 12:11 PM

excellent work, it looks new again.

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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: dgreyson]
      #6030869 - 08/17/13 12:27 PM

Thanks Greg, I love restorin' stuff....

Edited by TOM KIEHL (08/17/13 12:32 PM)


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Masvingo
scholastic sledgehammer
*****

Reged: 01/10/12

Loc: Ayrshire, Scotland
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: TOM KIEHL]
      #6033059 - 08/18/13 03:18 PM

Quote:

Takes alittle time Jim, but what are you to do? gota give it a try.






Thanks again Tom, success! In the absence of a drill press that was set up I chucked it up in a lathe and after a few taps with my fine adjusting tool (nylon tipped hammer) I have a straight pinion. I also have a straight sun screen support rod now as well. I'm happy!


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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) new [Re: Masvingo]
      #6034567 - 08/19/13 01:14 PM

Way to go James, great ,glad it worked. In the absence of a lathe ,I have to use a drill press the lathe is the way to go.

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TOM KIEHL
professor emeritus
*****

Reged: 11/17/12

Loc: N.E. Ohio
Re: >>>BEFORES and AFTERS<<<( Part 1) [Re: TOM KIEHL]
      #6036798 - 08/20/13 03:51 PM Attachment (4 downloads)

Well, lets put this thing together and take a look.
I had the 7TE-5 out for first light last night. I must agree with CharlieB I like the 7T alittle better than the 7TE-5. Good star test on both, but the 7T just seemed abit more user friendly, and tack sharp star images . If it's clear tonight I might try both on the moon. I'm sure the extra FL. of the 7TE-5 might have a slight edge over the 7T we shall see.
It was a sunny day here in the Buckeye State (Ohio), so I took some pictures outside of both the 7TE-5 on the left, and the 7T on the right.
Still working on the wooden case for the 7TE-5.


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