STEM Brix

STEM Brix: Build, Learn, Explore Structural Geometry

STEM Brix is a print-and-play construction toy designed to introduce students, educators, and makers to structural geometry in a fun, hands-on way. These modular, 3D-printable bricks allow you to build and explore geometric structures, tessellations, and polyhedra—turning mathematical concepts into tangible learning experiences.

Why STEM Brix?

Modular & Scalable – Snap pieces together like LEGO to create everything from simple shapes to complex structures.

Educational – Learn about polyhedra, symmetry, topology, and structural stability through play.

Open-Source & Free – Download the STL files and print your own set for classroom activities or creative exploration.

Download & Print Individual Parts: Albert P. Carpenter’s Portfolio of 3D Models 

Download & Print Sets: 

21 Piece STEM BRIX SET 3 (6) 1 by APC5 - Thingiverse 

4 Piece STEM BRIX SET 2 (5H) 1 by APC5 - Thingiverse 

32 Piece STEM BRIX SET 1 (4-5) by APC5 - Thingiverse 

Print your own STEM Brix with a 3D printer! Recommended settings:

Material: PLA or PETG
Layer height: 0.2mm
Supports: None needed

z-axis settin 6.69mm

disclaimer: small parts not for children 4 and under

Classroom & DIY Challenges

Polyhedral Challenge – Build classic polyhedra like the tetrahedron, cube, and icosahedron.
Castle Building – Create a scalable architectural structure using only STEM Brix connections.
Creative Freestyle – Design and print your own custom STEM Brix pieces.