Question about Orion 1.25"/2" Precision Rack-and-Pinion Focuser Telescope

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Bausch and lomb professional 200 telescope

The rack and pinion of the focuser is broken. where can these be purchased?

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New focusers can be purchased at merridian.com or telescopes.com

Posted on Oct 25, 2009

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The rack and pinion focusing mechanism will not go in and out. how do i fix this?


There is a simple gear inside -- take the bottom plate off the focuser and see if they are engaged or broken.

If a gear is broken you will need to buy a new focuser.

Mar 03, 2011 | Bushnell Optics

1 Answer

Hi , I have a Bushnell 570 x 60 Rotary Compact Reflector Model 78-9570 and both rack and pinion focusing knobs have broken off - the alloy(?) has broken about 1/2" from the black knob. Is it worth...


No it's not --- junk it and buy another telescope. This time avoid Bushnell- Tasco, and Edu Science scopes.

Check out the Orion web site here, for a Dobsonian reflector telescope. The most aperture for the least amount of money.

http://www.telescope.com/control/main/


Read my tips on my profile page.

Feb 05, 2011 | Bushnell Voyager 78-9570 (570 x 60mm)...

1 Answer

The rack and pinion gear on the focuser for a meade ds 2000 telescope got stripped. I can't find replacement focuser .


You can possibly buy another focuser from Meade here:
http://www.meade.com/support/index.html

Orion Telescopes also sell focusers here:

http://www.telescope.com/control/telescope-focusers

Jul 21, 2010 | Meade DS-2130ATS (250 x 127mm) Telescope

2 Answers

Teeth on focus mech. is broken in three places need new one where can i get one


You can buy a new focuser here:

http://www.telescope.com/control/category/~category_id=focusers

Nov 02, 2009 | Bushnell Voyager 78-9565 (120 x 60mm)...

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Rack & Pinion Broken too


It's not worth replacing the focuser on that telescope-- here are replacement focusers of good quality -- notice the prices!

http://www.telescope.com/control/category/~category_id=focusers

Jun 09, 2009 | Bushnell Voyager 78-9440 (440 x 12.5mm)...

1 Answer

Telescope knob


Still not enough information, but taking a stab at it, I'll assume you mean the pinion rod that goes between the focus knobs, and engages a gear rack on the focuser. There are locations where they can be purchased, and you would need to provide the OD and pitch (teeth per radian) to match.
Try: http://www.pinionrod.com/ as a source.

Jun 13, 2008 | Optics

2 Answers

Bushnell voyager AN-78-9565


Not worth repairing-- a new focuser for your telescope would cost as much or more than the telescope-- unless you can find a discarded telescope of the same model..... for parts.

Jan 12, 2008 | Bushnell Voyager 78-9565 (120 x 60mm)...

1 Answer

Rack and Pinion


Yes you can -- several different telescope retailers sell focuser here is one:

http://www.telescope.com/Accessories/Telescope-Focusers/pc/3/51.uts

You must buy the correct size that will fit your tube.

Dec 22, 2007 | Bushnell Voyager 78-9440 (440 x 12.5mm)...

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