ivp wrote:
> could I have suggestions please for a long-lasting material that
> can act as a clutch between a motor and a pot shaft

Since pots have a wiper that drags accross some resistive material, they ar=
e
not that long lasting themselves.  If you really want long lasting, you
probably need to use a shaft encoder that works magnetically or optically.

A cute trick I've seen is to use just a stepper motor.  When the user turns
it you get pulses out the windings, and it can act like a shaft encoder
without the zero reference.  Of course it's a motor, so you can make the
shaft move electronically too.  It can be done, but it's not trivial and
will take some development.

How long does it really have to last, and how many operations before it's
allowed to break?


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