[sdiy] DIY slide-bars

[Fernando de Izuzquiza]

Hi Toby, Magnus et al,

The qslide seems to output 128 values only. This will produce 
noticeable low resoluion... (my experience is that at least 4096 values 
are needed for a gesture controller that worths it's name)

I would do it with a sensor similar to the long force sensing 
resistors. In fact you can have a slide sensor on top of a presure 
sensor and have a position+pressure controller.
The pressure controller (force sensing resistor, aka FSR) can be 
purchased from Interlink in a developer package basis (4 sensors of 
each 4 types for about $100) or in large quantities (500 or 1000 I 
think!)
I haven't find a direct source for the slide type, but you can buy one 
or two from the iCube people (but expensive this way)

As you see I'm interested in this subject too. It would be great that 
someone develop a circuit to use this sensors as VC sources.
In PAiA site there are some clues of how to do it. There is a little 
interface designed for FSR, electret mics and piezo elements in the 
MIDIbrain pages.

Fernando

 > De: "Paddock, Toby" <tpaddock at seanet.com>
 > Fecha: Tue, 27 Jul 2004 07:23:13 -0700
 > Para: <synth-diy at dropmix.xs4all.nl>
 > Asunto: RE: [sdiy] DIY slide-bars
 >
 >>> 1) How did these classic slide bars work? What materials etc. was 
there?
 >>> 2) How could one make one today? I am looking for a fairly stable 
design,
 >> so
 >>> antistatic foam is out, OK?
 >>
 >
 > Has anyone used these for anything?
 > http://www.qprox.com/products/qslide.php
 >
 > Toby Paddock
 >
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