> I should have known that this would open up a can of worms :)

Worms our specialty ! :-).
And, it makes sense that We'All track down the paths that you have followed.

Drilled castor radially with insert of conductive material?

I didn't see the spray on side material (eg Nickel) mentioned?

> We are also looking at dragging a conductive neoprene strap, but some
> of our testing has indicated that it will wear significantly due to
> the very large distances traveled by these machines (they pretty much
> move at 1 meter per second constantly, 16 hours per day).

UHMWPE is often used when this is an issue.
Making it conductive may be another matter :-).

Deep mind processes or random neuron firing suggests "phosphor bronze"
as a strap material.


    Russell
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