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

I am changing the #Stemfie3D screws, making them thicker (4 to 5 mm). This change makes all fasteners the same thickness, including shafts and spring pins.


This allows for an internal axial hole and makes them stronger and stiffer; it also gives the screws a larger thread surface and reduces the play inside the part holes. 

You can expect the old 4 mm fasteners to be phased out and the new ones introduced in the near future. All the latest files are available at get.stemfie.org.


2023 10 05 STEMFIE.org Thicker 5 mm screws v2

2023 10 05 STEMFIE.org Thicker 5 mm screws v3

2023 10 05 STEMFIE.org Thicker 5 mm screws v4

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.