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Equipment Discussions >> Classic Telescopes

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dawsonian2000
Carpal Tunnel
*****

Reged: 07/26/06

Loc: Riverview, FL, USA
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: terraclarke]
      #6142223 - 10/17/13 02:14 AM

You are welcome, your highness! ...and I concur with your sentiments.

BTW - The visusl back is on its way across country to a new home. I hope it will resolve Eric's issue by getting the eyepiece closer to the focal plane. I look forward to reading the results.

Mel

Edited by dawsonian2000 (10/17/13 02:15 AM)


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dawsonian2000
Carpal Tunnel
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Reged: 07/26/06

Loc: Riverview, FL, USA
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: SpaceNetworks]
      #6142232 - 10/17/13 02:36 AM

Quote:

Quote:

Thanks Mel. I have enjoyed reading about your ATM projects and looking at the pictures of your fantastic builds that you've posted here on CN. They've been an inspiration for me.

Terra




Mel,

Started to explore your website, and I too have enjoyed learning about your projects and resources. For starters, I had been looking for an editable observer data file, and yours seems like it will fit my needs. I'll be checking out more of your site soon. Thanks!




Hey Eric,

I failed to thank you for utilizing the observer's data sheet I compiled and posted on my website for download for amateurs looking for a comprehensive form to record their memorable sketched and astrophotographic moments. Thank You so very much! It makes me so happy to see the website serving the purpose I intended it to perform. One of these days, and as my time permits, I will be instilling improvements to make it more current.

Thanks again,

Mel


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terraclarke
Post Laureate
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Reged: 05/29/12

Loc: Just South of the Mason-Dixon ...
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: dawsonian2000]
      #6142374 - 10/17/13 07:35 AM

I've said it before and I'll say it again, this is the best forum on CN and the best online astronomical community because we have the best, most generous people here in Classics. Classics on CN is a total Class Act!

Terra


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dawsonian2000
Carpal Tunnel
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Reged: 07/26/06

Loc: Riverview, FL, USA
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: terraclarke]
      #6144153 - 10/18/13 02:11 AM

Quote:

I've said it before and I'll say it again, this is the best forum on CN and the best online astronomical community because we have the best, most generous people here in Classics. Classics on CN is a total Class Act!

Terra




You can say that again!

Mel


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SpaceNetworks
sage
*****

Reged: 04/21/13

Loc: California
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: dawsonian2000]
      #6145503 - 10/18/13 07:52 PM Attachment (6 downloads)

Quote:

Here is a photo of the visual back I will be sending. Basically, it is the same as the one Gary shared a photo of. I hope it moves your eyepiece close enough to achieve sharp focus.

Mel




The visual back (VB) that Mel so generously sent has arrived. The focuser drawtube fits inside the VB, but the VB does not thread onto the drawtube. I'm thinking about possible alternative ways to secure the VB. Any suggestions?


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SpaceNetworks
sage
*****

Reged: 04/21/13

Loc: California
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: dawsonian2000]
      #6145505 - 10/18/13 07:53 PM Attachment (5 downloads)

Another view:

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SpaceNetworks
sage
*****

Reged: 04/21/13

Loc: California
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: dawsonian2000]
      #6145507 - 10/18/13 07:55 PM Attachment (5 downloads)

One more:

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BarabinoSr
Pooh-Bah
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Reged: 11/17/05

Loc: Slidell La
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: SpaceNetworks]
      #6145893 - 10/19/13 12:20 AM

My old try and true method to take up the slack between the draw tube and vb would be to add a small piece of paper, perhaps a little strip, between the male and female threads of the draw tube and vb. Use trial and error on the strip size but it should be fair size. Works every time. Just remember to cut off any of the exposed paper,and don't use too big a piece that may obstruct the light path. G

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dawsonian2000
Carpal Tunnel
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Reged: 07/26/06

Loc: Riverview, FL, USA
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: SpaceNetworks]
      #6145975 - 10/19/13 01:23 AM

Eric,

I would go with the aluminum tape you suggested in the PM. One layer should prove sufficient. If it is too much, then use small strips spaced evenly around the threads.

Mel


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SpaceNetworks
sage
*****

Reged: 04/21/13

Loc: California
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: dawsonian2000]
      #6148608 - 10/20/13 03:37 PM Attachment (3 downloads)

I was able to secure the visual back to the focuser drawtube. I used a thin strip of Scotch foam mounting tape over the bottom one-third of the VB threads. This decreased the inside diameter of the VB while also providing an adhesive on both sides. Foam mounting tape is compressible, and removable in case I needed to back out of this solution.

The VB then fit snugly over the drawtube, with the adhesive of the foam tape along the bottom one-third. Next, I cut a thin strip of aluminum foil tape to join the top of the VB to the top of the drawtube. The VB seems reasonably secure and the drawtube retracts as far as possible.


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SpaceNetworks
sage
*****

Reged: 04/21/13

Loc: California
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: dawsonian2000]
      #6148611 - 10/20/13 03:40 PM Attachment (4 downloads)

Now I just need to find a machinist to cut 16mm (.63 in.) off the barrel of the prism diagonal. And if focus isn't reached after all that, I guess I'll move to Alaska, and you'll never hear from me again!

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fjs
Pooh-Bah
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Reged: 03/25/13

Loc: Olympic Peninsula, USA
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: SpaceNetworks]
      #6148681 - 10/20/13 04:35 PM

Quote:

And if focus isn't reached after all that, I guess I'll move to Alaska, and you'll never hear from me again!




No don't! That's extreme. You can move to Alaska, change your e-mail address, then change your ID, and continue to post here!


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terraclarke
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Reged: 05/29/12

Loc: Just South of the Mason-Dixon ...
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: fjs]
      #6148716 - 10/20/13 04:54 PM

Maybe I missed something earlier, but why are there are two different labels on the focuser, each with the same basic information, but one says China, the other Japan??? I've never seen such a thing?

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SpaceNetworks
sage
*****

Reged: 04/21/13

Loc: California
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: terraclarke]
      #6148743 - 10/20/13 05:28 PM

The replacement focuser is new, from China. I added the badge from the original to ID the rest of the scope for what it is, ca. 1959 Circle T from Japan.

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terraclarke
Post Laureate
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Reged: 05/29/12

Loc: Just South of the Mason-Dixon ...
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: SpaceNetworks]
      #6148903 - 10/20/13 06:55 PM

Ah ha! That explains it.

Good job Eric,

Terra


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Mike W
sage


Reged: 04/30/06

Loc: Upstate NY
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: SpaceNetworks]
      #6152266 - 10/22/13 07:09 PM Attachment (4 downloads)

If you send it to me I can modify it for you on my South bend. It should have threads on one end so you can unscrew it and send just the barrel. Send me a personal message if you want.
Mike


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SpaceNetworks
sage
*****

Reged: 04/21/13

Loc: California
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: Mike W]
      #6154706 - 10/24/13 01:08 AM

Quote:

If you send it to me I can modify it for you on my South bend. It should have threads on one end so you can unscrew it and send just the barrel. Send me a personal message if you want.
Mike




PM sent.


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Mike W
sage


Reged: 04/30/06

Loc: Upstate NY
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: Mike W]
      #6158169 - 10/25/13 08:49 PM



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Mike W
sage


Reged: 04/30/06

Loc: Upstate NY
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser new [Re: Mike W]
      #6158174 - 10/25/13 08:52 PM



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Mike W
sage


Reged: 04/30/06

Loc: Upstate NY
Re: Tasco 12TE: Using 1.25 eyepieces w/ a .965 focuser [Re: Mike W]
      #6158179 - 10/25/13 08:54 PM Attachment (3 downloads)

More recent parts on the lathe

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