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Clock drive clutch material

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#1 rogercelliott

rogercelliott

    Mariner 2

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Posted 12 March 2013 - 12:13 PM

My 20 year old :shocked: OpticCraft drives have these fiber plates between the worm gear and the clutch plates that is getting very old. There's a bit of sticking whenever I'm sweeping the skies. I'm curious to know what others have used for replacing these things - it's almost like heavy duty cardboard or like a step down from masonite board... :question: Any ideas?

Thanks
Roger

#2 herrointment

herrointment

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Posted 12 March 2013 - 01:47 PM

Cork in the old days? What about the stuff that C and M use today? I'm not sure what it is but somebody will come along with an actual answer!

#3 rmollise

rmollise

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Posted 12 March 2013 - 01:53 PM

Cork was common. Asbestos was sometimes used. I don't know of a current Meade or Celestron mount that uses slip clutches.

#4 rogercelliott

rogercelliott

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Posted 12 March 2013 - 02:14 PM

I thought I had read somewhere here that someone used auto gasket material. What about cutting up some teflon sheet from those thin cutting boards?

#5 herrointment

herrointment

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Posted 12 March 2013 - 03:55 PM

I was thinking of the ALT friction disc on my Celestron 8SE mount which lets the OTA take a bump or push and not trash the gear train.






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