The free and never-ending 3D-printable educational construction-set toy you can download and make at home!

The STEMFIE Catapult is ready for download

Meet the STEMFIE Catapult! You can download the 3D files from this link. So start warming up your 3D printers and enjoy this STEMFIE toy!

 

Assembly video

Welcome!

This is the official homepage of the STEMFIE Project – the 3D-printable and open-sourced educational construction toy you can download and make at home. 

STEMFIE ...

.... is made for you!

... is open source.

... is free to use and adapt.

... has no fees!

... is #MadeWithFreeCAD

... is easy to 3D-print

... is upscalable (200% - 500%)

... is lots of STEM fun for kids!

... is ready for you to download

Browse parts

2023 12 06 STEMFIE online viewer

Use the STEMFIE web app to browse, view, and download parts.

Projects

Desktop Christmas Tree
Desktop Catapult
Rubber-band-driven Car

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Quick-print sample

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

☞ Warning!

Warning Choking Hazard Children Small PartsThis toy is unsuitable for children under three years due to choking hazards!