Design Futures

In class we have been developing our cars. We had to finish them then use the two big cogs which were 50 or 60 teeth and the three small gears that are 8, 10 or 12 teeth and race them with the six different combinations to see which is the fastest for your car. I have the 60 teeth with the 8 teeth gears on and my fastest time is 3.7 seconds down the track. I then went to race mine yesterday and found my moter was making a funny noise and the wheels were also sounding weird. Mr Ward had to get a new axel and wheels and now the car is working well but is now over 4 seconds down the track. next lesson i need to check everything is the way i want it before cutting the wires and permanently soildering them together. this will mean i cannot change the cog combination. After this i will lubricate the wheels and axis and keep improving aspects of the car to make it faster. i also need to start the written part of the assignment whihc is due in two weeks.

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