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Old 10-02-2005, 10:24 AM   #1
Claude Paradis
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I am: Claude P.
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making servo extensions

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I find myself needing more and n more servo extensions lately. The nicely packaged pre-made ones are rather expensive considering.

Solder splicing wires is well within my capability. Ie I would cut the servo lead and solder in the added length I need. Looking around the house here I have around 100' of telephone wire in various lengths. Any good reason why I wouldn't use that stuff?
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Old 10-02-2005, 11:21 AM   #2
Wayne MIller
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Servo Wire

Hi Claude,

I'd be a little concerned about the gauge of the telephone wire, and how flexible it is. There are many different types of telephone wire used as extentions, wall to phone, in wall wiring, etc. and each manufacturer seems to have different wire.

Back in the late 60's and 70's we used standard wire tightly wrapped for servo leads, this can be purchased from Radio Shack (The Source) etc.. You could buy this standard wire and splice it in and use heat shrink and tightly twist. However, I find that it always turns out to be a little more bulky than the standard servo wires.

The best I have found, is to pick up about ten feet of standard servo wire at a swap meet - usually the vendors have bulk servo wire in both light and heavy guages. Ten feet lasts a long time.

There is a swap meet coming up in London Ont. on the 16th and I plan to attend, if you like, I could pick up some bulk wire for you and send it to you, if there is a vendor there. I think it is around $1.00 a foot, but not sure. You could also have some added to your next order, next time you mail order from a large hobby supplier.

Another thing that may be of some interest to you, is the pin spacing of the connectors. They have the same spacing as standard IC pins, and usually you can buy a plastic strip of male and female connectors from an electrical supply house. They are used a lot by students and engineers in building prototype projects and "bread boarding". The strips can be cut in groups of three pins and will fit directly into a receiver or servo lead. The only dissadvantage is the "male pins" do not have a housing and you have to be careful to plug them in correctly. I always secure them (and also purchased extension connectors) with electrical tape to ensure they don't separate.

Hope this helps.


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