Re: [CAD_CAM_EDM_DRO] Re: wire question

In a message dated 5/28/2003 4:33:18 PM Central Standard Time,
davemucha@... writes:

> and a 26 conductor, foil shieled for the rest of the stuff. That
> would put the stepper in the same bundle as the low voltage stuff.
>

Dave! I mis-read you, first time, I guess! The "signal stuff" should NOT be
in the same bundle as the stepper-motor wires! Those are the WORST! It'd
even be better if the low-voltage "signal" wires were in the same bundle with
the AC, rather than the stepper wires! A CHOPPED square-wave is MUCH
electrically-noisier than a sine-wave AC!!!!!

You miay-well be better off SRIPPING this cable you have, and making-up a
"custom run" with the signal-wires shielded under a SEPARATE shield from that of
the stepper-wires! For the one giant machine I made, I used Gortite flexible
cable-track things, which itself is a shield, though it doesn't SEPARATE
motor-wires from others.

I kept MY signal wires separate, and used tiny DC-relays for the
"limit-switches", so that the DC-lines for those relays were not the "same" as the actual
74HCnn lines.

I am having trouble "entering" my "forums" on AOL, so I can't re-check if I
have filed a photo of this on PHOTOS or FILES on the CCED site. AOL is summin,
some days!

Jan Rowland


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