Re: limit switches: mech vs proximity

From: jmw@...
<s>

>As WallyK has pointed out in off-board comm, mech types can be set up
>to have lots of overtravel, but prox sw's have to get pretty close to
>the target before tripping--hence the possibility of crashing them.

Perhaps crashing into the sensor is why many proximity switches are
set perpendicular to and alongside the motion. They sense an edge rather
than a flat. But then many mechanical switches are mounted so that they
do the same.

--

Ray