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You should connect one of these swivel joint connectors, or similar, on the dependent wheel, and connect to the driving wheel's anchor point by a lever arm. https://www.dsti.com/landing/swivel-joints/


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Barstock with a hole drilled in it can be attached to the threaded rod on the cylinder with nuts and washers.


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A few points: how is it to lock? Perhaps retraction springs? most cylinders have a piston with a thread or clamping section to fix to. can two counter-acting cylinders be used which would mean swapping pipes on the pump or a changeover switch. consider mounting the cylinder(s) next to the lock which gives more control of the rod and reduces any flexing. ...


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Late to the party... a simpler alternate solution to planetary gearsets is available for coaxial input/output if you don't care about symmetry around the drive shaft. it's used in some tower clocks. The solution is to choose tooth counts that yield the same sum between two sets of pinions and wheels (which will have equivalent radius sums) across 3 axles (...


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Figure 1. A Kinetrol rotary actuator. This type of rotary actuator is also known as a vane type. This one has a 90° action and is popular for controlling ball or butterfly valves. Figure 2. A rack and pinion style rotary actuator. Image source: Hydraulics Pneumatics. These convert linear motion into rotary. The angular rotation is limited only by the length ...


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A pneumatic cylinder is linear by definition The form factor for a cylinder defines this. You can turn this linear motion to rotary via a crankshaft or rack & pinion, to give two examples. You can also purchase a rotary pneumatic actuator, and, yes, there are some knuckleheads out there calling them "rotary cylinders." These people should be ...


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