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

[Tom Wiltshire]

So I take it we can't find these illuminated incremental encoders anywhere in a version with threaded shafts and have to add our own threaded shaft after the fact? (since that is essentially what these are).

Really? Not available threaded? Nowhere?!

(It may be that not - that's why I'm asking. If I knew somewhere, I'd tell you.)

Tom

On 29 Nov 2016, at 20:20, "Matthias Herrmann" <matthias.herrmann at fonik.de> wrote:

> Anybody used axle bushings like these? they should keep some stress from the encoder:
> http://www.reichelt.de/Potiknoepfe/P6-SCREW-ACHSE/3/index.html?ACTION=3&LA=2&ARTICLE=42129&GROUPID=3139&artnr=P6+SCREW+ACHSE&SEARCH=%252A
>  
>  
> Von: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] Im Auftrag von Jean-Pierre Desrochers
> Gesendet: Dienstag, 29. November 2016 21:00
> An: Tom Wiltshire
> Cc: synth-diy at synth-diy.org
> Betreff: Re: [sdiy] Incremental encoder to up / down counter or pots and an ADC
>  
> 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
>  
>  
>  

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