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Broken Clutch Knob :(

Started by brucesdad13, 03/09/2015 12:07PM
Posted 03/09/2015 12:07PM Opening Post
I'm not sure if it's because it was really cold last night or the knobs are just cheap but... I was tightening the DEC knob with my hand and it snapped in half. It's some sort of metal. There are two products listed on the Celestron site and I'm not sure which is compatible with the CG5 mount. I submitted a help ticket. I'm wondering if anyone has put an alternate type of knob on there? I was thinking even something from the plumbing section... these tend to rub on the motor housing... I think the inside might be 5/8"?

e.g. http://www.celestron.com/browse-shop/spare-parts/clutch-knobs-compatible-only-for-the-cgem-series

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brucesdad13's attachment for post 59199

~ Charlie Stevenson

8" f/5.7 String Telescope - 1st Scope Build; 2nd Place Stellafane 2016 Optical Award for Newtonians 12.5" and Smaller
10" f/4.5 Newtonian (June 2015) mirror refigured by Optic Wave Labs P-V WaveFront 1/14.24, Strehl Ratio 0.993 (Aug '15)
Criterion RV-6 seems to be circa 1973 (June 2015) [For Sale]
Celestron C8-A XLT (January 2015) [For Sale]
Celestron PowerSeeker 70AZ (Christmas 2014)
Aldrich Astronomical Society member since 2015
http://astro.charleskelleystevenson.com/
Posted 03/13/2015 01:43PM #1
Celestron replied and said they don't have the part anymore for my mount. Ah whatever.. I'm using a wrench now and took off the RA knob too. Actually works much better, doesn't rub on the mount motor housings, feels more solid, and is adjustable with gloves on in the cold. Who knew cracking a knob would be such a good thing? ;-)

~ Charlie Stevenson

8" f/5.7 String Telescope - 1st Scope Build; 2nd Place Stellafane 2016 Optical Award for Newtonians 12.5" and Smaller
10" f/4.5 Newtonian (June 2015) mirror refigured by Optic Wave Labs P-V WaveFront 1/14.24, Strehl Ratio 0.993 (Aug '15)
Criterion RV-6 seems to be circa 1973 (June 2015) [For Sale]
Celestron C8-A XLT (January 2015) [For Sale]
Celestron PowerSeeker 70AZ (Christmas 2014)
Aldrich Astronomical Society member since 2015
http://astro.charleskelleystevenson.com/