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

SPS 000001 assembly step0 parts list

Click for a larger image

Download the STEMFIE files below by right-clicking on a link and saving it on your computer. You can also download the ready-made build plates.

Build plates

SPS 000001 assembly step0 build plates

Right-click and save the following build plates (.3mf file format).


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

SPS 000001 assembly step1

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