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Re: Behaviour Of Single Solenoid Pneu. When Robot Disabled Legal ?
Yup...
So, if you have a pneumatic claw powered with a single solenoid, and you are disabled for any reason (i.e. a short communications drop-out, or undervoltage), you risk dropping your tube.
The only thing we've put on single solenoids are our mini-bot deployment latches which one released, don't matter if they return in the disabled state.
Despite the cost of needing 2 solenoid outputs to control them, double solenoids are your friend for the exact reasons you mentioned.
Also they are nice at maintaining the states between power-ups and power-downs.
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In life, what you give, you keep. What you fail to give, you lose forever...
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You don't need to prototype everything, just the stuff you want to work. - JVN [more] 
20-02-2011, 10:30
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