asdasd asked:
Okay, so I have to make an electric car using a 3V motor and 2 AA batteries. I have everything connected, and when I have the car not touching the ground, the wheels spin, but when it hits the floor, it stops spinning. How do I increase torque to make it move?
Okay, so I have to make an electric car using a 3V motor and 2 AA batteries. I have everything connected, and when I have the car not touching the ground, the wheels spin, but when it hits the floor, it stops spinning. How do I increase torque to make it move?
more voltage, but at the risk of burning out the motor.
How fast are the wheels spinning? too fast, and you may benefit from gearing the motor down.
Or add a second motor.
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How are you powering the wheels with the motor?? Direct drive?
If so…change up to a pulley system of sort. Otherwise, you may have to add a transmission of some sort, like a gear motor. Or just add a pinion on the motor and a gear on the axle. A worm drive will give lots of torque…but it’s inefficient.
You will have to lighten the load of the car as well. Is there a restriction on the voltage? If not…add more voltage. 4.5V might do it…buts it just a guess.
Here is a trick…put a paper clip onto the can of the motor. Does it stick? If it does…then you have a leaky motor. You might get a little more uumph by rapping the motor casing with a steel sleeve, or some other magnetic material. The improvement will only be a couple of percent.
You have to gear it down. Put a small pulley on the motor, and a large pulley on the axle