3 Simple Ways to
Share What You Make

With Instructables you can share what you make with the world — and tap into an ever-growing community of creative experts.

PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

Lego Mousetrap Car

Lego Mousetrap Car
Do you need to make a Mousetrap car for science class? Do you have some Lego's around the house that aren't being used? Do you have 10 minutes of free time?

Well this simple design will leave you with a quick accelerating, compact mousetrap car that will beat the competition. With this design I ended up getting 1st place in acceleration, and 6th in distance.

 
Remove these adsRemove these ads by Signing Up
 

Step 1Parts You Need

Parts You Need
Parts you will need:

Duct Tape
Fishing string
(x4) Small Lego Technic tires
(x2) Skinny gray spacers
(x2) Fat gray spacers
(x2) 1x16 bricks with holes in them (the yellow ones in the picture)
(x2) 1x6 plates
(x2) 1x8 plates
(x1) 2x6 plate
(x2) 1x4 plates
(x4) 4x6 plates
(x1) 10 long axle (about how many brick dots long it is)
(x1) 8 long axle
(x1) Red K'nex piece
(x1) Mouse Trap (duh...)
« Previous StepDownload PDFView All StepsNext Step »
10 comments
Jul 27, 2011. 10:10 AMZ.Backas says:
Thanks for your design! I won first place in distance and speed with it in my class! I added a longer arm for distance, and bigger wheels in the back too.
Apr 17, 2010. 12:05 PMjonesy10ftw says:
 what kind of wheels did you use, bc all my lego wheels fall off the axis?
Apr 12, 2010. 6:53 AMREDefiant says:

What

Apr 12, 2010. 6:51 AMNez1993 says:
we have not made this yet, but i guess it looks cool enough to give it a try.
Feb 21, 2009. 7:47 AMsenario 158 says:
cool
Apr 20, 2009. 5:59 AMalysontaylor says:
ouuhh this looks sexy
Apr 7, 2009. 12:44 AMbloggingman says:
that's a really easy way to make a mouse trap car... plus using a lego will help reduce weight... which is good for long distance cars and fast cars....
cool!
Jul 25, 2009. 6:57 AMcoreyt says:
whats with the weird thing ehn you click on mouse trap car
Dec 18, 2008. 4:10 PMknex_builder_freak says:
HAHAHA Awesome! 5*s!

Pro

Get More Out of Instructables

Already have an Account?

close

All Steps Viewing
View all steps of an Instructable on the same page when you're a Pro Member.

Upgrade to Pro today!
81
Followers
19
Author:LegoBrickMaster7(RedBubble)
The name's Alex. I'm currently majoring in Graphic Design at Cal Poly Pomona. When I'm not busy with schoolwork I like to practice hockey, watch some movies, modify my Nerf blasters, play with my Yama...
more »