[sdiy] DIY Optical organs.

[Tony Clark]

   Hi,

> Anyone tried laser printing waveforms onto acetate? I'm not expecting =
> hi-fi results. :)

   No I haven't tried doing waveforms, but I did try to make a linear 
encoder once, using the same trick.  The problem that I ran into is that 
it greatly depends on your light source, I think.  In order to pick up on 
that fine of a resolution, your source/pickup needs to be extremely 
narrow.  I found that once the lines got so fine, the bleed-through got to 
be too excessive.
   Anyone else care to add anything?

   Cheers,

   Tony

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