[sdiy] Incremental encoder to up / down counter or pots and an ADC

[Jean-Pierre Desrochers]

Hi Tom, 

> A non-threaded shaft is never going to be tight in the first place, is it?

> As long as the hole that that the encoder goes through is a nice tight fit..

That's exactly the problem with MANY cheapo mixers that have too large
holes

for the pot's shaft and these shafts are rocked in all the way

with no secure mecanical provision.. Even with a brand new console

you can 'feel' the loose the shafts have in their non supporting holes.

Sometimes companies like Fender (to name one) use small plastic

washers to fill the holes circular gaps for tightening the shafts in
place.

These pots or encoders are too often used with too much of their shaft

going outside the metal front panel causing the premature mecanical

degradation. Try to imagine.. when you need to pull their knobs for
repair

you fear of ripping these shaft out of the device..

JP 

Le 2016-11-29 14:09, Tom Wiltshire a écrit : 

> +1 agree. This is a classic microcontroller job.
> 
> JP, what do you mean that these non-threaded shafts "get loose over time"? A non-threaded shaft is never going to be tight in the first place, is it? As long as the hole that that the encoder goes through is a nice tight fit, I don't see a particular problem (assuming the PCB is well supported). So what am I missing?
> 
> Thanks,
> Tom
> 
> On 29 Nov 2016, at 16:44, Olivier Gillet <ol.gillet at gmail.com> wrote:
> Is there a cheaper way to do this or is it easier to go back to using pots and a flash ADC. GPIOs and software, on any microcontroller. _______________________________________________ Synth-diy mailing list Synth-diy at synth-diy.org http://synth-diy.org/mailman/listinfo/synth-diy [1]

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