[sdiy] Circle Machine prototype

[Harry Bissell]

You could make something work... the turntable would run at 33RPM
so the lowest frequency would be .55Hz  (or 33BPM). Any integral
multiple of this could be done with the right amount of holes.

The photodetectors could be phototransistors, which could trigger
envelope generators... or photoconductive cells which could
provide CVs for VCO, VCF etc.

In essence you could get the same effects with a sequencer, but it
would no way look as cool.

If you need to change the tempo, you need a wide range speed control
on the turntable.

Yhe neat thing about the drum buddy is the way the cans sit on the
turntable, you could make any number of different masks...

(and you need to drink a buttload of coffee, which would just increase
your ability to make more wierdness...

H^) harry



----- Original Message -----
From: Erik Ribeiro <djxpat at yahoo.com>
To: Synth DIY <Synth-diy at dropmix.xs4all.nl>
Sent: Tue, 17 Aug 2010 10:50:35 -0400 (EDT)
Subject: Re: [sdiy] Circle Machine prototype

>>On Tue, Aug 17, 2010 at 9:41 AM, Harry Bissell <harrybissell at wowway.com> 
wrote:
>> Another take on the circle machine...
>> http://www.drumbuddy.com/
>> (hey. it could work...)

> The Drum Buddy and its inventor are pure awesome.  Quintron can really
>play that thing live.

I'm so bummed out that I had to miss Quintron in Houston a few weeks back. And I 
would love to own one of those drum buddies, but they seem quite limited run. I 
would love to convert my Vestax PDX-d3 turntable to some variation of it. How 
hard would it be to rig up something optical to modulate a MOTM, dotcom or JH 
oscillator? Would I even need to mod the turntable. Perhaps I could build a case 
and house the oscillator 5U modules, sort of like a DJ coffin...

erik
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-- 
Harry Bissell & Nora Abdullah 4eva