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Re: pic: Four-Speed Ball-Lock Single-Pneumatic Transmission Design
How about multiple cylinders?
If you get a 2" stroke piston and attach a 1" stroke piston to the end of that, you can achieve 0", 1", 2", or 3" of length by firing them in sequence.
Bimba also sells multi-position cylinders that essentially accomplish the same thing in a more compact package. We used one on our Lunacy bot - you can custom order a wide variety of StrokeA/StrokeB combinations that are then controlled by a pair of solenoids.
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