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

Spanner Nut (SPN-TOL-0004)

Download STEMFIE files by right-clicking on a link and saving it on your computer (about file names)

      Build Plates/
      CAD/
      Tool Spanner NUT - SPN-TOL-0004 (stemfie.org).stl
      Tool Stand Sign [for SPN-TOL-0004] - SPN-TOL-0042 (stemfie.org).stl
Spanner Nut SPN TOL 0004 category assembly stemfie.org

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. 

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! 

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

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