Table of Contents
What materials are needed to build 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 kind of string is best for a mousetrap car?
The string has to be strong enough to handle the pulling force but flexible and thin enough to wind tightly around the drive axle. We recommend using a Kevlar based fishing line because its high strength. You should stay away from nylon fishing line and dental floss, these do not work well with mousetrap racers.
How do you make a rat trap car?
Build a Mousetrap Car Step 1: Materials. 2 pieces of Cardboard (4” x 10”) many dimensions will work, but this is a good starting place. Step 2: Car Body. Step 3: Attach the Straws. Step 4: The Mousetrap. Step 5: Preparing the Wheels. Step 6: Adding the Axles and Wheels. Step 7: Attaching the Hook to the Rear Axle.
How do you make a rubber band car move?
Procedure Loop a rubber band through itself around the middle, exposed part of the wooden skewer (where you cut out a notch in the cardboard and straw). Tape the rubber band to the skewer to prevent it from slipping—when the skewer rotates, the rubber band should rotate with it.
What wheels should I use for a mousetrap car?
As you might guess, the materials used to build mousetrap-powered cars are light out of necessity. Foamcore board or balsa wood are often used for the body. The wheels can be off-the-shelf radio-controlled car wheels, but many builders use blank CDs or DVDs because their thin edges reduce friction.
How long should a mousetrap car be?
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.
What is an axle hook on a mousetrap car?
An important part of a mousetrap vehicles propulsion system is the axle hook. If the string does not properly release from the drive axle the string will rewind around the drive axle and cause the mousetrap car to come to an instant stop.
How do you make a mousetrap car go faster and farther?
lever arm length When you design a mousetrap car, you usually add a lever arm to the mousetrap car to extend the rotational distance the entire mousetrap bar travels. If you haven’t realized it yet, increasing the length of the lever arm attached to the mousetrap, increases the total mechanical advantage of the car.
Is it better to have a lighter or heavier mousetrap car?
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.
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.
How long should the lever arm be on a mousetrap car for distance?
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.
How do you make a balloon powered car?
Procedure Put your car down on a flat surface and give it a good push. Tape the neck of the balloon around one end of the other straw. Cut a small hole in the top of the water bottle, just big enough to push the straw through. Push the free end of the straw through the hole and out the mouth of the bottle.
How do you make a toy car move by itself?
Simply turn your soda can around and around in one direction so that the rubber bands store up some potential energy. Then, place your car on the ground and let the can go. The soda can should spin, releasing all the stored energy and moving your cardboard car! Super cool, right?May 1, 2014.
How do you make a simple cardboard car?
How to Make a Cardboard Box Car Seal a large box with packing tape. Have an adult use a box cutter to cut out a semicircle on each side to make the doors. Fold the cut top of the box to create a windshield. Have a grown-up cut out a windshield. Glue on paper-plate wheels. Attach plastic-cup lights with glue.
What can I use for small wheels on 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 makes a mousetrap car go farther?
Using large rear wheels allow one rotation of the axle to take the car a much further distance. In other words, a given length of the string from the mousetrap moves the car a greater distance. In non-technical terms, this means that the same force from the mousetrap on each snap gets exerted over a longer string pull.
What is the fastest mousetrap car?
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.
Are Bigger wheels better for a mousetrap car?
By changing the size of the drive wheel(s) you can speed-up or slow-down your mousetrap vehicle. Larger drive wheels will have a greater travel distance per each turn compared to smaller drive wheel.
