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Re: Drive train questions
Darnit, Al beat me to it. We used a system like this to good effect in 2010 for our blocker. With two pistons retracted we could drop the blocker completely to go through the tunnel, with one set deployed the blocker was at 45deg for hitting balls out of the return, and with both sets deployed the blocker was vertical, good for blocking shots.
We found the best way to do this was to use a threaded coupler and jam nuts to attach two piston shafts together and use the supplied brackets to mount the 'base' of each piston. It was a very robust and reliable system, and flow-control valves can turn the pistons from essentially undamped springs into spring-dampers, which may or may not be useful to you.
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Theory is a nice place, I'd like to go there one day, I hear everything works there.
Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.
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