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So far we have built one car with a three wheel design. The first front wheel we used was slanted, so we had to replace it. Now we have it running, but it doesn't go straight. We have also experimented with adding weight to the front. We added a battery, with google eyes, called "Chuck" to add weight to the front. We tried to make the back wheel better. We had to recenter the front wheel. Re-glued the back wheel. We had to fix the front wheel again.



Our car now runs somewhat straight. We changed the front wheel and realigned the back wheels. The front wheel came off and now we have to re-glue it. I



During a test run in the hallway we busted out back axle that came completely off. It veered into a wall and the hot glue did not hold. At the moment we are trying to repair but none the less we are very excited about how fast and straight our car is running and think our chances are excellent without any more mechanical difficulties.

Vehicle parts wheels made out of wood back wheels have rubber front wheel does not. body made out of wood. 2 double A batteries. Metal axle. straw for the axle. 4 Popsicle sticks. 2 beads.

Vehicle parts cost list 2 Velcro $0.30 Battery holder $0.50 Motor $1.60 Craft sticks $0.08 toggle switches $0.50 Aluminum axles $0.07 Time trials 25 feet 0:04:78 25 feet 0:03:78