joystick mechanics

[David Lee]

Also Korg still sells the Joystick controllers in Dss1's, DW's, and Poly's.
They are $50 US and have 2 100K pots in them as I recall with six solder
terminals. In replacing one on a poly61M it seemed that it would be easy to
use them in DIY stuff do to their modular design (i.e. ... a nice little
box that is easily screwed to a flat surface).

David Lee

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> From: Stopp,Gene <gene.stopp at telematics.com>
> To: 'synth-diy mail list' <synth-diy at mailhost.bpa.nl>
> Subject: RE: joystick mechanics
> Date: Friday, February 27, 1998 11:10 AM
> 
> If you have a way to cut and drill small metal brackets, you can make an
> X-Y controller using long-shafted regular pots. I've seen a drawing of
> it, and I'm confident that I could just build one up on the workbench if
> I had to, so let me see if I can describe the method:
> 
> Take a long-shafted pot, mount it on a fixed bracket. Make a metal
> bracket with another long-shafted pot mounted in it, and mount the
> bracket onto the shaft of the first pot so that the two shafts are at 90
> degrees to each other. Mount a long handle on the shaft of the second
> pot, and that is your joystick handle. Notice that the first pot if
> fixed, and the second one moves, so you'll need flexible wires going to
> it. Some mechanical forethought in bracket design would ensure that the
> axes of the pots intersect each other.
> 
> If you want to get a third dimension of control, replace the long handle
> with a third pot so you have X, Y, and twist.
> 
> Did I describe that right? I don't even want to try ASCII graphics for
> this one, Courier or no.
> 
>  - Gene
> 
>  ----------
> From: Paul Perry
> To: synth-diy at mailhost.bpa.nl
> Subject: joystick mechanics
> Date: Thursday, February 26, 1998 7:12PM
> 
> there is a mechanical way(?differential gears) to convert
> a joystick motion to two separate rotary motions.... so that
> someone with a joystick can use any pots they want....
> but i don't know the way!!!!! where is the Radiation Laboratory
> 'Computing Linkages' volume when you want it? ;)
> 
> seriously, can I make this with standard mech parts?
> 
> paul perry melbourne australia