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Rotary knobs on drumit5 module.

Started by welshsteve, October 05, 2015, 12:39:59 PM

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welshsteve

October 05, 2015, 12:39:59 PM
Just curious, does anyone else have issues with the rotary dials? Turnin clockwise up voices only to see it skip back 5 not forward. And vise versa? It's random, sometimes I skips several increments, others just the one or two. Other times, it doesn't move at all. I was wondering if it's a dust on the contact issue or something. I've only ever used my module so I've nothing to compare it to.
My Hovercraft is full of Eels!

Coda

#1
October 05, 2015, 07:45:16 PM
I see that sometimes if I turn it real fast. I have a reasonable new module though (<3 months) so it won't be dust, probably the speed of the encoders vs the reading speed of the CPU.

Jman

#2
October 06, 2015, 05:13:54 AM
Yeah, I get that on one of my modules. Especially if just going up one kit it might skip forward or back. But turning the dial slow usually isn't a problem. I've had mine for years, but I think it is something that was always like that.
I could tell you where to stick that piezo! :D ;)
http://stealthdrums.com/

Benton

#3
October 06, 2015, 08:14:03 PM
My module also does that, but I  think it startet after I did the SD extension mod. Could that be the issue. ?

Coda

#5
October 06, 2015, 09:46:14 PM
Quote from: nocturnodrummer on October 06, 2015, 09:13:27 PM
maybe try cleaning the pots?

https://www.youtube.com/watch?v=0QvOepREO4k
NO!
They are not potentiometers, they are rotary encoders with push buttons, and they do not have carbon tracks that can be cleaned. They operate on a completely different principle.

nocturnodrummer

#6
October 07, 2015, 06:00:07 PM
oh, pardon. I thought that these are pots.. my bad. but since it's an encoder, it has to have some kind of scale and a diode. maybe the scale is dirty? I know that linear encoders work that way.. are they completely sealed and free from dust and dirt?

Coda

#7
October 07, 2015, 07:30:11 PM
Some are sealed yes. Squirting them with kontakt60 or similar cleaner wont do anything to these, and the ones which are not sealed, well I wouldn't want to spray a corrosive cleaner inside one - some are made like the old mouse wheel encoders used to be, before we got optical mice (a plastic wheel with vanes), and others are made with a plastic sheet which is printed with stripes. In either case there are diode pairs inside (emitter/detector), and a mechanical switch in the case of the ones in the 2box module.
Saying that - I'd be surprised if it's a dust issue though. Maybe a solder joint has come loose... this could cause erratic signals.
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