RF Shielding - was Re: Router spindle electrical noise.

I have been chasing similar RF interference problems with my CNC
conversion Sherline, and wonder whether anyone has a source of braid
to put over cables? I spent some time making my cables, and would
prefer to put a shield over them, rather than re-doing them. (the
aluminum foil seems to help but it looks terrible and is very
fragile.)

If not, any place that has reasonably priced 4 conductor braid
shielded cable with wires bigger than 22 gage?

Thanks in advance.

Chris

--- In CAD_CAM_EDM_DRO@yahoogroups.com, cnc002@a... wrote:
> In a message dated 10/20/2003 12:30:14 PM Eastern Daylight Time,
> cncman172@y... writes:
>
> > Jon,
> >
> > I had the very same problem and I resolved it by replacing the
cable
> > on my limit and home switches with braid shielded cable. Make
sure
> > you only ground the shield to the end that attaches to the
controller
> > and leave it ungrounded at the switch or sensor end. As soon as
I
> > made these changes all my limit and home switch problems
vanished...
> > amazing...
> >
> > Russ
> >
>
> Russ:
>
> You found the proper way to handle the interference problems that
usually
> occur with DC voltage signals on machines that also have AC
voltage. The only
> thing I might add is that if using just braided shielded cable
doesn't totally
> correct the problems, you can use a shielded twisted pair cable and
that will
> often resolve the remaining problems.
>
> Randy Abernathy
>
>
> [Non-text portions of this message have been removed]