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The cue ball was handy and readily adoptable for the first
manipulator. Cue balls were originally made from ivory, then nitro
cellulose (the first plastic but a touchy explosive they found out), and then
plastic. A ball valve will have a limited range of motion due to its
standoff from the hull and will be difficult to work with due to the large
diameter hole through the middle. Stainless steel would be great for the ball
but may be difficult to machine for the home machinist. R/Jay Respectfully, Jay K. Jeffries Andros Is., Bahamas Talk sense to a fool and he calls you foolish. - Euripides (484 BC - 406 BC) From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brian Cox I want one too ! I don't get the cue ball
part, wouldn't you have to have a hole thru the cue ball?
What are cue balls made of ? ceramic? What about using a ball valve
or simply machine a large stainless sphere and put a hole thru it. Brian |