Re: [CAD_CAM_EDM_DRO] Re: trackball on the cheap?

Have you priced trackballs?

http://www.provantage.com/logitech-904360-0403~7LGTM009.htm

Pretty hard to beat that on the cheap.
--
Phil Mattison
http://www.ohmikron.com/

----- Original Message -----
From: Graham Stabler <eexgs@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, June 23, 2006 11:36 AM
Subject: [CAD_CAM_EDM_DRO] Re: trackball on the cheap?


> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Stephen Wille Padnos
> <spadnos@...> wrote:
> >
> > How about just getting an older mouse with an actual ball, and mounting
> > that in the panel, upside down? You can connect panel-mounted switches
> > to the board as well.
> >
> > Incidentally, mounting an optical mouse in the panel can act as a
> cursor
> > as well - they'll detect hand/finger motion in front of the sensor just
> > fine. (though it would take some getting used to, I think)
> >
> > - Steve
> >
>
> They don't work very well upside down, try it. The ball weight causes
> them to jam. The ones I have at least.
>
> Optical is also cleanable, use a magnet to pic the ball out of the
> hole and swab with some alcohol. Laptop optical mice are also VERY
> small or at least can be.
>
> Graham
>
>
>
>
>
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