Quote:
Originally Posted by Jon Stratis
Clearly I didn't explain that last idea well enough  The pneumatics wouldn't return to a specific state when de-powered, they would work the same as pneumatics on FRC robots - they remain in whatever state they were at when power was removed (air leakage might result in the pistons slowly losing their pressure). The switch simply indicates which direction they would be at. If you wanted to do this without needing a controller on board, see the attached rough diagram. |
I see, that would be better that what I was assuming. However, it still requires the electrical system to function for this safety system to function, and is susceptible to an inadvertent flip of the switch, which isn't ideal in my mind.
Of course none of this detracts from a pneumatic jack's usefulness and definite cool-factor
FYI: plenty of FRC robots have one-way solenoid valves, i.e. return to one state when not powered. It would be dangerous to assume that all robots use 2-way solenoid valves.