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

This ZIP file contains various commonly used STEMFIE parts in different sizes nestled into compact build plates measuring less than 140x140x140 mm (5 ½ inches squared), which fits comfortably in most 3D printers' build volume.

You can start by importing each .3mf file into your 3D printer's slicing software. All components are oriented to 3D-print optimally without support structures. Please ensure a flat, clean build plate and calibrate it well.

If you use a filament-based 3D printer (FDM/FFF), I recommend PLA or PETG material for making STEMFIE parts. In addition, the following printing settings work well for making STEMFIE parts.

  • Material: PLA filament
  • Layer height: 0.2 mm
  • Perimeters (shells): 3
  • Top solid layer count: 4
  • Bottom solid layer count: 3
  • Infill: 15%
  • Generic print speed: 50 mm/s
  • No support structures

For more information about the STEMFIE project and to download the complete range of parts, please visit the download page.

STEMFIE is a free and open-source educational toy! So have fun 3D-printing lots of parts and inventing your project builds!

Paulo Kiefe


👉 Download the STEMFIE Essentials ZIP file STEMFIE Logotype A4 👈


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.