The STEMFIE rubber-band-driven car is easy and quick to build and demonstrates energy retention and controlled release to achieve motion. The inspiration for this design is borrowed from science classes in schools, using the mousetrap car. 


Information  –   Parts list  –   Build plates  –   Downloads  –   Assembly steps  –   Gallery




< 140 x 140 mm

 A short piece of string and three small rubber bands 15 minutes

Spanner (SPN-TOL-0004)

Driver (SPN-TOL-0001)


Parts list

Click for a larger image

Build plates

SPS 000001 assembly step0 build plates

👉  Download the complete set of files here  👈


The files for this and several other STEMFIE projects are available from the central web file repository. Also, if you prefer to have the files synchronized to your computer, consider subscribing to the STEMFIE cloud repositories. For instance, you can clone the STEMFIE GitHub File Repository to your local hard drive and get all updates when you synchronize. 

Assembly steps

SPS 000001 assembly step0 tools

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