09-17-2014, 04:24 PM
There is such a thing as an "internal throttle" used on motorcycles that has a similar function. Here's a link to a home build of one...
Internal throttle build
It might give you some design ideas.
Hope that helps,
-Ron
Internal throttle build
It might give you some design ideas.
Hope that helps,
-Ron
11" South Bend lathe - Wells-Index 860C mill - 16" Queen City Shaper