[sdiy] I finally did some SDIY this weekend

[Roman]

good carbon pots are specified to take 4000 revolutions
while cermet ones usually say 50000-1000. Precision pots survive 1 milion
revolutions without significant quality decrease.
according to datasheet of course.

Say, acceleration sensor tied to your shoe. No pedal whatsoewer and it
works. "look! a guy is stomping with his foot and makes sounds!
he must be using playback, let's make him play the lucky man tune"

Roman

----- Original Message -----
From: "The Peasant" <ecircuit at telus.net>
To: "Roman" <modular at go2.pl>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, June 29, 2004 1:21 AM
Subject: Re: [sdiy] I finally did some SDIY this weekend


> I was planning on using a slide or rotary pot, and to derive the velocity
and
> acceleration (or maybe just velocity) electronically, but I'm concerned
about
> pot wear. An optical encoder (and I already have a few) would solve the
wear
> problem but would add circuit complexity. Guitar pedals seem to do OK with
> pots, but I think a hit-hat pedal will get much more use in a short period
of
> time.
>
> I think I will experiment with some better quality pots and check wear
rates.
> Does anybody know if cermet pots wear better than carbon?
>
> Take care,
> Doug
> ______________________
> The Electronic Peasant
>
> www.electronicpeasant.com
>
>
> Quoting Roman <modular at go2.pl>:
>
> > ADXL acceleration sensors from Analog Devices
> > or one of gyroscope series they recently released
> > geared pedal with motor, so full travel of pedal gives like 10
revolutions
> > of the motor
> > or rotary encoder instead of the motor. If you get industrial one
> > with 1000ppr then gear is not even needed.
> > Or simply slide potentiometer as CV generator
> >
> > Roman
> >
> > ----- Original Message -----
> > From: "The Peasant" <ecircuit at telus.net>
> > To: "James Patchell" <patchell at cox.net>
> > Cc: <synth-diy at dropmix.xs4all.nl>
> > Sent: Monday, June 28, 2004 6:39 AM
> > Subject: Re: [sdiy] I finally did some SDIY this weekend
> >
> >
> > > striking position. I am designing a hit-hat pedal as well, with
position
> > and
> > > acceleration outputs. Any and all suggestions/comments/discussions are
> > welcome
> > > and appreciated!
> > >
> > > Take care,
> > > Doug
> > > ______________________
> > > The Electronic Peasant
> > >
> > > www.electronicpeasant.com
> > >
> >
> >
>
>