How do you make a fast mousetrap car?
Making The Vehicle Faster
- Thicken the axle: Wrapping some tape radially around the axle or adding a spool. It may be surprising as to how much faster this makes the vehicle.
- Use smaller wheels. They will require less force to complete a rotation.
- Make the vehicle lighter.
What are the best materials for a mousetrap car?
A mousetrap car can be made from cardboard or balsa wood with CD’s for wheels and axles of wood or brass tubing. Power to drive the wheels is provided by a mousetrap to which a wand and string is attached to the snap arm.
What wheels should I use for a mousetrap car?
Use thin, light wheels.
- Old CDs or DVDs work fairly well for this purpose — they’re large, thin, and extremely light.
- If you have access to old vinyl, these also work extremely well, though they may be too heavy for the smallest mousetraps.
What is the fastest mousetrap car?
Description: The Speed-Trap Racer is the fastest mousetrap powered racer anywhere and was designed after Doc Fizzix’s own record-setting mousetrap racer that traveled 5 meters in 1.2 seconds.
What is the best length for a mousetrap car?
The ideal size for an ultra big wheel on a long distance mousetrap racer seams to be somewhere between 10 and 15 inches. And the ideal size for a drive wheel on a speed-trap racer seams to be between 2 and 3 inches but no more than 4 inches.
Is friction important for a mousetrap car?
Reduce the Friction of the Axle and Bearing
Reducing friction on the axles is one of the most important considerations for any machine. If you reduce friction, you reduce energy loss. The easier the axle turns in its bearing, the farther a mousetrap car will travel.
Why is my mousetrap car not moving?
If a mousetrap vehicle is struggling to move and/or needs more acceleration then the lever arms can be shortened in order to increase the pulling force. Keep in mind that you will also have to reposition the mouse trap closer to the drive axle or the system will not work as intended.
Where should I place the mousetrap for the best performance?
For optimal performance the mouse trap should be positioned on the chassis so that the tip of the lever arm falls directly above the drive axle when the mouse trap is in the fully wound position (as pictured bellow). If the mouse trap is not aligned properly with the drive axle energy will be wasted off the start.
Is it better to have a heavier or lighter mousetrap car Why?
A heavy mousetrap vehicle will required more pulling force than a lighter mousetrap vehicle in order to achieve an equal acceleration. Lighter mousetrap vehicles will require less energy at the start and can use longer lever arms for more pulling distance.
How long should you make the vehicles lever arm for best performance?
For maximum speed, position the mousetrap 2 1/4 inches from the drive axle and cut the lever arm to a length of 4 1/4 inches. The lever arm can be cut using a dremel tool or by using a fine tooth hobby saw. The lever arm should always be “just” long enough to reach the drive axle or performance will be compromised.
What happens if the mousetrap is mounted too close to the drive axle?
7. What happens if the mousetrap is mounted too close to the drive axle? The energy goes too quickly and you lose pulling force.
How long should the string be for a mousetrap car?
The length of the string is about 25″. Therefore the string can be wrapped around the dowel 25/0.785 = About 31.8 times. So the minimum distance travelled will be the number of times the string can wrap around the dowel multiplied by the circumference of the wheels, which is 31.8 x 14.92 = 474.456″, or about 39.5ft!
What forces act on a mousetrap car?
A moving mousetrap car is affected by two type of friction: airfriction and bearing friction.