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

The STEMFIE construction set is scalable. You can either increase the size of the parts in your slicing software to make larger prints resembling Duplo building blocks or reduce the scale to yield more parts per filament spool. 

The scale for STEMFIE at 100% is designed to print optimally at 12.5 mm per block unit (BU) using standard settings for 3D printing (0.2 mm layer height and 0,4 mm nozzle).

In this test, the small STEMFIE desktop catapult is printed at 50% scale, resulting in a block unit size of 6.25 mm. It is more challenging to render all the details needed for the parts to fit on a smaller scale. Therefore, I recommend lowering the layer height to 0.1 mm, which was used for printing the model shown in this blog post's image. In addition, for optimal results in 3D-printing STEMFIE parts at this reduced scale, I recommend using a smaller nozzle diameter than 0.4 mm.

The 3D model and build plate files for this test can be downloaded from this link.

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.