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thread, telescope, rack and pinion, knob, gear knob

Generic problem for all Telescopes

Telescope knob

posted by Coach22 on Jun 13, 2008

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The telescope knob used for adjusting the focus is comprised of the knob which connects via an allen screw to a threaded peice that connects to the telescope the knob portion I have but the piece of threaded screw is the one missing.

I have the same problem.

Solution #1

posted on Jun 13, 2008

PaulMo

Rank:

Wiz
Rating: 79%, 149 votes

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.

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