Quote:
Originally Posted by kmusa
I don't believe anyone restricted this to only software interlocks.
For instance, two limit switches in series (which require contact from the ball to close), and connected in series with one of the leads for the solenoid would be robust, and not open to software override.
-Karlis
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Custom circuits (which your switches are considered) can't alter solenoid pathways, so your system is illegal on non safety grounds.