servo wires

[David Harmon]

A slick way to twist the servo extensions quickly in a neat manner is to
make a 'J' hook from music wire and then chuck it up in your variable
speed drill.

Put the hook around all 3 wires on one end and hold the other end in a
vise or clamp and slowly run the drill while keeping tension on the
wires. Don't pull too hard as the tangs holding the pins in the plastic
shell can break.
Slightly over wind the wires because there will be some tendency to
unwind until the wires and plastic insulation take a set. As the wires
wind up, the length will become shorter so allow the drill to ease
toward the other end.
You can speed this up a little by using a hair drier to heat the
insulation while you are winding. Don't get the wires too hot as you
don't want to melt the insulation.
You can hold the twist on there a while too while the wires take a set.

Regards

Dave Harmon
NSRCA 586
K6XYZ at comcast.net
Torrance, Ca.

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Lance Van Nostrand
Sent: Thursday, August 14, 2003 9:07 PM
To: discussion at nsrca.org
Subject: Re: servo wires

Keith's procedure is a good one if you need to keep the wires together.
Another reason for twisting them is to allow the ground wire to become a
simple shield from interference.  If this is your goal, you need more
than 2
twists per inch.  Rule of thumb is 5 per inch.
--Lance

----- Original Message ----- 
From: "Keith Black" <tkeithb at comcast.net>
To: <discussion at nsrca.org>
Sent: Thursday, August 14, 2003 1:51 PM
Subject: Re: servo wires


> Get good high quality servo extensions (22 gage) and twist them
> independently (in other words not twisted together).
>
> A good way to twist them is to anchor one end on your work bench and
twist
> the other end until you have a fairly tight twist, maybe 1 1/2 to 2
turns
> per inch. After twisting anchor the other end so the lead is stretched
out
> across you work bench. Get your heat gun and heat the entire length of
the
> lead to help "set" the twist. After done heating I'll leave mine
anchored
on
> my bench for quite a while (usually hours but that's probably not
> necessary).
>
> When you remove it from the bench it will keep the twist.
>
> I have servos in my stab and needed five foot extensions plus another
6"
> lead to plug into my receiver (receiver is mounted way forward). I
twisted
> only the 5' extension. I run the two twisted leads next to each other
to
the
> tail and I've had no problems at all. I also run the antenna down the
fuse
> but made sure it was on the top of the fuse and the servo leads are
secured
> to the bottom of the fuse. I wanted as much distance between the long
leads
> and the antenna as possible since long leads have been know to
interfere
> with the RX. The twisting is supposed to take care of the interference
but
I
> think it's still wise to separate them.
>
> Keith Black
>
>
> ----- Original Message -----
> From: "John Crozier" <sjcrozier at comcast.net>
> To: "nsrca discussion" <discussion at nsrca.org>
> Sent: Thursday, August 14, 2003 7:14 AM
> Subject: servo wires
>
>
> > Am I correct that servo leads from the Rx, to servos, mounted in the
tail
> > should be twisted?
> > And not run parallel?...thanx...croz
> >
> >
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> >
> >
>
>
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