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dragonslayer1
Pooh-Bah


Reged: 02/25/12

Loc: SLC, UT
De-fork ETX 80
      #5772588 - 04/02/13 10:58 AM

Anyone ever try to de-fork a ETX80? Then put on a EQ mount (CG-5)?

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Christopher EricksonModerator
Carpal Tunnel
*****

Reged: 05/08/06

Loc: Waikoloa Village, Hawaii
Re: De-fork ETX 80 new [Re: dragonslayer1]
      #5774177 - 04/02/13 09:36 PM

It is possible but I think it would be less disruptive and more cost-effective to simply sell the ETX-80 intact and buy an 80mm achro refractor with a Vixen-style dovetail on it from Orion.

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dragonslayer1
Pooh-Bah


Reged: 02/25/12

Loc: SLC, UT
Re: De-fork ETX 80 new [Re: Christopher Erickson]
      #5775106 - 04/03/13 10:01 AM

thank you for the reply Chris. I have a Orion ST 80 that I got with my SSAG mounted on the CG-5 right now. I plan on using Mallincam with small viewer for public outreach. I saw where some others are using the EXT 80 and getting great results. Was a thought to try a EXT 80 as well as is a lot less... Thank you again Chris.
Kasey


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Geo.
Carpal Tunnel
*****

Reged: 10/01/08

Loc: Upstate NY
Re: De-fork ETX 80 new [Re: dragonslayer1]
      #5779839 - 04/05/13 03:06 PM

Or look around for one on a bad mount. The plastic hayzeus nut on the bottom of the mount is glued in place. It has pretty fine threads and the glue and removal doesn't leave it in great shape. Then the forks have to be removed to get the OTA off. The trunion hubs are molded parts of the OTA tube so you're stuck with those. Guess if you were in a hurry you could just take the hacksaw to the axle extensions....

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Stew57
Carpal Tunnel
*****

Reged: 05/03/09

Loc: Silsbee Texas
Re: De-fork ETX 80 new [Re: Geo.]
      #5780250 - 04/05/13 05:53 PM

Nytecam uses an ETX70 piggybacked on his Meade 12". I think he had some pics of his setup. Ask him and I am sure he will let you know what is needed.

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Jerry-rigged
sage


Reged: 01/30/12

Loc: Coastal Texas.
Re: De-fork ETX 80 new [Re: Stew57]
      #5792442 - 04/11/13 02:02 PM

I de-forked my EXT80. Geo is right - it is a one way trip. Even with the mindset that I had to break that nut, it was still tough to get apart. Also, the round arms that attach the OTA to the fork are not removable without a saw.

I bought mine off Ebay with a dead mount, with the plan to de-for and use as a finder for my 10" dob. So far, it has not make it on my dob, but I have used it on a photo-tripod, with a home-made 1/4-20 mount. Makes a nice wide-field scope, but it does not take power very well.


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Jerry-rigged
sage


Reged: 01/30/12

Loc: Coastal Texas.
Re: De-fork ETX 80 new [Re: Jerry-rigged]
      #5792449 - 04/11/13 02:05 PM

BTW, here is a thread that gives you a good idea of what you get after the de-fork.
http://www.cloudynights.com/ubbarchive/showflat.php/Cat/0/Number/2013928/Main...


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