Re: 2D pedals

[Matthias Grob <matthias@grob.org>]

>At 6:27 AM -0300 5/23/00, Matthias Grob wrote:
>>Alex seems to be very creatif:
>>
>>>However, I have made my own "joypedal" to control the 
>>>mixer-morpher Max patch I mentioned recently, and it would
>>>work fine for any two voltage control inputs. It's based on a 
>>>Yamaha CV pedal. I have used it for about five years, on and off, 
>>>and it hasn't failed yet. If there are enough people interested I 
>>>will make some more, let me know.
>>
>>sounds great!
>>So the whole pedal is turnable?
>>Is the output a voltage or is there a potentiometer in it?
>
>Yes, the whole pedal is turnable, over about a 70 degree range, on a 
>circular base. The center of the twisting motion is aligned with the 
>leg bone, more or less, so it is possible to adjust the up-down 
>position and left-right position independently, with practice. I 
>play standing up and I've put a lot of weight on it. I am not sure 
>how easy it would be to use with a guitar on your knee!

you mean it has a lot of friction? may be an advantage for standing 
use, but... no,  I dont want to make any efforts ;-)

>There is a potentiometer in it, in addition to the potentiometer 
>that was already in the pedal for the normal up-down axis.

is it the potentiometer that causes the friction or is it the turning 
mechanics?

>Two TRS jacks, I plug into an old Yamaha MCS2 MIDI fader box. Does 
>the EDP use potentiometer pedals?

yes, but a control voltage also works.

>>>I have recently been trying to figure out how to add a third axis 
>>>of control without spraining my ankle :-)
>>
>>I thought about that too. I guess for a simple short way, almost 
>>on-off, it should be possible! Or a switch on each side of the 
>>movement.
>
>Yes, maybe a pressure sensor on the ball of the foot. Or five little 
>tiny toe-pedals...

sounds funy, but why not? Lets call it monkey pedal and start to 
train the toes...
I learnd from my good old HAMMOND M3 to control a switch (which I 
redefined as Leslie speed) in the horizontal plain on the volume 
pedal.
Then I imitated the same lever on my Schaller pedal for Overdub, but 
ended up simplifying it, without lever, just a keyboard type of 
switch that is operated toards the left with my right bit toe. Worked 
easily from the start.

>I remember ads for a wah-wah pedal that didn't move, it was a little 
>blob, you stood on it and shifted your weight around. Anyone ever 
>try one of those?

I built one with a piezo in it. But I dont like to have to press all 
the time, I want to be able to leave it in some position...
As I saw, Chapman made effect pedals on such pressure control principle, 
right?


          ---> http://Matthias.Grob.org