👉   Play freely and build endless fun at home with STEMFIE, the free 3D-printable educational toy   👈 

The STEMFIE Rubber-band-driven Car is a fun build and an excellent demonstration of energy retention and controlled release. Inspired by the classic mousetrap car science class experiment, this project helps children understand fundamental physics concepts while having a blast!

Download the complete set of files here 

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SPS 000001 assembly step0 stemfie.org tools

SPS 000001 assembly step1 stemfie.org

SPS 000001 assembly step2 stemfie.org

SPS 000001 assembly step3 stemfie.org

SPS 000001 assembly step4 stemfie.org

SPS 000001 assembly step5 stemfie.org

SPS 000001 assembly step6 stemfie.org

SPS 000001 assembly step7 stemfie.org

SPS 000001 assembly step8 stemfie.org


New STEMFIE projects

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Quick-print sample

STEMFIE.org Quick print sample shoulder screw pin nut washers brace

The STEMFIE Quick-print Sample file is an easy way to test a few STEMFIE parts and fasteners. You can also check the STEMFIE Calibration File for more elaborate types of fasteners.



STEMFIE is a free, open-source, 3D-printable construction set toy that helps children learn STEM! Download the files freely, and please support my efforts to expand this project.