Quote:
Originally Posted by billdan
Hi Graeme,
The only commercial ones I have seen has been from Van Syke Engineering, they do motorised spiders but I am sure you could buy just the focus motor off them.
http://www.observatory.org/spiders.htm
Others on CN have done similar to what you want to do with manual helical focusers.
Cheers
Bill
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Looks like VSI is no longer operating as a business.
http://www.observatory.org/index.htm