Mathematical objects made of 3D printing.

3D printers are no longer a foreign object in schools and institutes, allowing them to manufacture with great precision, geometric objects, games, tangrams or puzzles.

They are an opportunity to enrich the didactic collections of the centers and at the same time allow to physically carry out works and projects of the students. 

We collect on this page, the objects created by us. You can freely download the files and print them. 


SCAD files are used by free openscad 3D modeling software. They allow the modification and personalization of the model. 


STL files are a standard used by all 3D printers. In fact, they are a text file with the list of triangles of the three-dimensional triangular network that forms the surface of the object.

Instant sums

These prisms, apparently with random figures, allow to instantly make the sum of the 5 numbers of 4 digits that can be formed with them, whatever the order of the prisms or the chosen face.

The articulated Pythagoras theorem

The 4 articulated pieces allow on one side to form the two squares corresponding to the sides of the rectangle triangle of the base and on the other hand form the square corresponding to the hypotenuse.