Let's Make Robots!

wire to use to hook up motors and servos

i recently ruined my 2 gm-9 motors because i soldered the wire to the board and to the 2 motors, and i moved the motors around to get the balance right.  i snaped the copper connections off of the 2 motors because the wire was so stiff that it just tourqed them off.

 Can i use a different kind of wire?  What kind of wire should i use that will have more give than this stiff hookup wire?

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Wire is wire. Unless you are doing high voltage or hi-fi.

Just pick the wire that works well for you..

Tape, hot glue etc can be a good thing to support the little copper thingeys.

cool, i'll use some wire from this old computer power supply i have, should give a little more and me more delecate on the little prongs.  i'll also use hot glue to brace those things, once they are soldered on.

I think the most important thing is to add some sort of strain relief, as you suggest with the hot-glue.  Another way would be to use a cable tie to attach the wire to the body of the motor.  That way, if you tug the wire, the strain is taken by the cable tie, and not by the soldered connection to the motor, or the motor terminals.


I know what you mean about the wire, I've got some 18 gauge stranded stuff  where the strands are thick and the wire is overall stiff. I also have some 12 gauge stranded wire I have has a higher strand count and smaller strand wire perfect for motors, very bendable. see if you can go to an electronics store or maybe a hardware store...they might have something
Steal the ribbon cable from the inside of an old computer. --Right guage, right size, wicked flexable and you can snip off as many connectors as you need!
Those wires that connect the motherboard to the case bits are good too, for LEDs, reset button, etc.
Voltage does not matter.  What matters is current.  You can run 1000 Volts through 20 gauge wire at a very low amperage but if you try to run 12 Volts through the same wire at high amperage it will get hot, melt the plastic coating, and possibly melt the wire.  Even with the small scale stuff most of us here are working on it is still very easy to overload your wires especially when working with the motors.  If you don't believe me take a thin piece of wire and hold it to the + and -  terminals of a AA battery with your fingers.  It's only 1.5 volts but that sucker will get hot and make you drop it.
Which statements are the not entirely true ones?