How to make a Mousetrap Car Cheap & Easy Tutorial (Fast & Long distance) - Science Project

Science Project that cost only $7
Mouse trap car's frame is made of Wooden rulers glued together by super glue, with CD wheels & mousetrap as the motor.
It can travel a distance of about 55 feet.

[tankdemp]

Bro thank you so much, physics project due thursday😂😂😂😂

[sallyaspenson]

This is my aunt's account so ignore the picture but you have the best mouse trap car on the internet. The music is great and it's the perfect science fair project!😁👍👍👍👍👍

[mollyhergenrother]

NOTE: If the car won't move forward after you set off the mousetrap, add tape to the back axle to make it thicker. This will help increase the torque and make it move forward (at a faster speed). Please please don't give up on it if it won't move! Just wrap masking tape or painters tape around the back axle to make it thicker!

[ericd]

My girlfriend’s son (8th grade) has an assignment where he needs to make a “car that moves without battery assistance or manual (student) assistance”. I remember making one outta a rat trap in high school so I told her I’d be happy to help him w the project. This was a perfect refresher, ty.

[one_beatz]

I’ll speak for all the high schoolers and jus say, thank you.

[aaronmathew]

people who are doing this for school--

[isabuug]

ah yes, mousetrap car time of year. kill us all.

[IIBLANKII]

If you’re going for distance, I would remove the rubber. Rubber is great for a faster acceleration, but adds too much friction for your coasting phase. The reason the world record holder did not have rubber on his wheels was because cds alone allowed for a longer coasting phase because of less surface friction on your wheels.

I would also add another axel with a pulley with a diameter the same as your 120mm cds, and put it slightly higher so that it clears the ground in the middle of the car. Now attach a thick rubber band to the pulley and your drive axle (might need a pulley here to make the axle larger) to act as a belt, and the string of the mousetrap arm to the pulley’s axle.

This spreads the power over a longer time, and gives the mousetrap mechanical advantage on the drive axle by amplifying the force. It essentially acts like a fear box, and adds more rotations to your drive axle.

Kinda like this but with pulleys



The world record is around 600ft, and uses this method.

[livebright]

Thanks for the reply, just sometimes it won’t start, but when it does it gets around 10 feet, took me a while to make, thanks for uploading

[crytical]

I don’t want to sound weird but... I LOVE YOU!!! YOU got me a 100/100.❤️❤️❤️❤️❤️❤️

[Epic-zivu]

This helps so much thanks I gotta project due Friday ‼️🥲

[cbnmissile]

what a tutorial! the music really sets the mood! 😼👑

[rajeshramj]

Hey! I'm not too sure how youtube works, but I think it would be cool if you could add a materials list to the description

[RuzeDuze]

thank you for this video it rlly helped me with my science project

[Pravin-kotu]

For those needing to do any mods to get their car to go further here’s some
broscience: use ball bearing/wheel bearings for the axles, larger wheels to cover more distance for same leverage, and minimize weight where possible (have three wheels)

[jonasjames]

Wow thats cool im using this for a school project and this really helps

[pancakeuwu]

Is anyone else watching this because their teacher told them to make one for a science project?

[Nikokl]

huh. this is way easier than i thought it would be.

[attibeard]

damn thats more than i thought i was gonna need

[hvalour]

I followed the instructions as if they were the word of god. Due to a local lumber shortage and having no cds i had to use steel bars instead a rulers and 3.5 inch floppies instead of cds. My cars forward motion was a disappointment. Any advice?