Zhumell Dobsonian 10 in. (600 x 254mm) Telescope Logo

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Posted on May 16, 2010
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Dented telescope tube

Have a Zhumell 10" dobsonian.have bad dents in the tin tube.what can I do? Can I get just the bare tube alone from Zhumell?

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Joe Lalumia aka TelescopeMan

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  • Master 3,186 Answers
  • Posted on Jun 01, 2010
Joe Lalumia aka TelescopeMan
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Joined: Nov 04, 2007
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HOW bad? If they are small they will not affect anything. Contact your local astronomy club and have one of the members look at your telescope.

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I have a dobsonian telescope. I'm able to find an

If you point it at a STAR --- it will NOT be magnified. Stars are always just points of light no matter which scope you own.

OR do you mean it's in the finderscope but not in the main tube eyepiece?? We need more information to properly answer you.

You did put an eyepiece into the focuser-- right?
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I droped .my telescope,now its in two peaces.Just want to know if it can be fix,where i take it for repair.

Depends on what you broke? The tripod head? is the scope tube dented badly-- any glass broken? You might be able to buy a new MOUNT for the scope from Meade-- call them here:

http://www.meade.com/support/index.html

www.telescopeman.org
www.telescopeman.info
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http://www.meade.com/support/index.html

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I dropped something heavy on the tube of my 130GT and dented it slightly. This has affected the optics. Is a replacement tube available, and what would it cost. Noel

The dent in the tube is not the problem, or at least not the whole problem. You will have to re-align the optical parts, which have been disturbed by the impact or possibly the change to the geometry of the tube. This is called "collimation" and you can find lots of articles about how to do it on the web. It is a complex process, though.

Just fitting a new tube will not fix the problem, as the various optical elements will still need to be collimated after having been fitted to a new tube. You would be better off to either live with the dent or remove the mirrors and knock the dent out before re-collimating the scope. You don't need a new tube, but you will have to re-collimate in any case, so save the money. Maybe you could pay for a specialist to do the collimation instead.
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I have a swift astronomical telescope model no. 859 (no D). I need an owners manual and information on how to order parts. Mark J. Lanza

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No manuals exist for that brand but all of them assemble and are used in the same fashion. Here is a manual for an Orion brand Dobsonian just like your scope.

http://content.telescope.com/rsc/img/catalog/product/instructions/IN_165D_web_XT6-8-10.pdf
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The spring connecting the clock drive broke

You may be able to buy a replacement drive from a Zhumell dealer?

Here is one. Contact them and find out.

http://www.telescopes.com/telescopes/zhumell/8197+8198+8269.cfm?source=googleaw&kwid=zhumell%20telescopes&tid=exact
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My 10" Dobsonian from Zhumell didn't come with an

Just watch this video:
http://www.andysshotglass.com/Collimating.html

and read this:
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Try posting this question on the www.cloudynights.com FORUM, either in the REFLECTORS topic, and or ATM, Optics Topic.

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www.meade.com.

Clear Skies
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Focuser could be broken. Call a dealer and see if you can purchase a new focuser-- or a replacement focuser(which you can do).

OPT is a really good internet dealer--
www.optcorp.com
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