Since your questions are mainly concerned with the setup of the motor, you might find this image helpful: http://www.sciencebuddies.org/science-f ... _setup.pdf
. It shows the black and red wires, as well as the magnets, with their location relative to the battery holder.
There's also this diagram from the project page, posted for your convenience:
At each end of the battery holder, apparently there should be holes, so twist the legs of the axle supports into these holes.
For your last question, I'm assuming you mean to ask what keeps the coiled wire from shifting left and right on the axle? I believe that'll take some tightening and adjustments on your part, so that the axle supports are near, but not touching, the temporary magnet.
If you have further questions about any aspect of the project, feel free to ask! There are also informative FAQ pages, if you haven't already seen them before: viewtopic.php?f=59&t=8920
and http://www.sciencebuddies.org/science-f ... shtml#help
Good luck and have fun with this project!
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