old aluminum pie tins.
Smooth out a piece about 4"x4". A scissors handle or
a large spoon will work as a smoothing tool.
with a square and find the center. Gently make a well
in the center. Take something blunt (The rounded end of a popsicle
stick will work.) Be careful not to push through the aluminum.
Turn the piece over and work a groove around the well (on this
side it's a bump) to make it stand out.
the well side, use a straight edge as a guide and make
grooves out from (but not through) the center (4, 6, 8, whatever
you like.) These will be ridges on the bump side. The
ridges will help you form the motor into a cone, which will balance
better. Turn to the bump side and gently work the area
between the ridges until they bend a little to be more like a
in about 1/2 way along each ridge, and fold up a triangle on each
"blade." The fold should go from the end of the cut
to the outer edge of the next ridge.
you want curlicues like the ones in the photo, cut a very thin
strip along the edge of a scrap piece. The thinner the strip,
the more it curls. You don't have to fasten them. If you lay a
ring of curled stuff on top of a motor, it will stay in place.
rods in the picture are available in hardware and hobby stores.
Put a short candle in the middle of some florist foam and stick
the rod into the foam next to the candle. How long or short the
rod is will have an effect on the speed of the motor. Balance
the motor on the rod and give it some time to heat up.