Re: [sdiy] Telharmonium motors, perhaps?

[Roman]

Excellent idea!
CD motor can spin slow and is easy controlled
CDs are cheap, and one can buy round stickers for them
or even order custom printing cheap.
Broken CDROM can be bought for much less than 1$ so it's almost too good.
Of course we need controll the motor ourselves. Putting plain CD is bad idea, as it would change rotating speed while playing, and the telharmonium would constantly go flat.

Roman

---- Wiadomość Oryginalna ----
Od: Michael Baxter <mab at cruzio.com>
Do: Tim Parkhurst <tparkhurst at siliconbandwidth.com>
Kopia do: 'john mahoney' <jmahoney at gate.net>, Gene Stopp <gene at ixiacom.com>, synth-diy at dropmix.xs4all.nl
Data: Tue, 23 Nov 2004 17:21:26 -0800 (PST)
Temat: RE: [sdiy] Telharmonium motors, perhaps?

>Well ... decided watching the traffic go by that there's another excellent
>way to approach this problem in the SDIY context ...
>
>1. Print tone wheel with laser or ink jet printer onto a CD label.
>
>2. Paste label onto a garbage or blank CD.
>
>3. Hack a cheap CD player to act as the mechantronics.
>
>4. (Per this post) Use photo transistor array for pickup of transitions or 
>waveforms.
>
>5. Augmentation of idea: use COLOR inks and COLOR LED illumination, and 
>COLOR filters to change transfer functions of printed disk for tone 
>production. Allows a kind of spatial compression to pack in more sound per 
>disk, possibly with the subtractive inks overlaying each other.
>
>6. Second augmentation -- have several possible CDs to use as application 
>specific tone wheels.
>
>"It's almost too easy..."
>
>Arghh!
>
>Best,
>Michael