[Azimov]

Test the car under a halogen lamp or full sunlight to make sure all is functional. If you haven't done so, put the blue gears and blue motor in the car. A solar application seems to do much better with these low power motors. If you notice the car has paper clip bumpers to protect the very fragile cells. That's one of the trade offs for using these ultra light solar cells, they are very thin and brittle. You could crush one in your hand like a saltine cracker, so precautions to protect them are mandatory. It would be a shame to run your new solar project into a lawnchair leg on the patio and shatter your expensive solar array! You could laminate the cells to a thin strip of sheet styrene plastic as well to strengthen them up a bit. The bumpers are soldered together and are super glued to the front and back of the chassis. They have about 1/8th of an inch of clearance around the solar array and aren't attached to the solar cells at all. This bumper system could be made out of left over plastic model parts trees or swizzle sticks, or maybe even plastic toothpicks to make construction easier. The idea is to protect the cells in any way possible.