Customizable Sierpinski Tetrix 3D Printer Model

Author: @
License:
File formats: scad,stl
Download type: zip
Size:28.9KB

The file 'Customizable Sierpinski Tetrix 3D Printer Model' is (scad,stl) file type, size is 28.9KB.

Summary

Continuing the theme of fractals that print with their own support structures, this is a model of the Sierpinski tetrix, a fractal based on the tetrahedron. It's a difficult object for a fused-filament printer because it involves lots of bridges, and the individual tetrahedra are only lightly connected to each other.

To make this model I started with cgranade's OpenSCAD Recursive Sierpinski Tetrahedron, which includes a clever adaptation for 3D printing, a parameter that adjusts the adhesion between adjacent tetrahedra. It makes the tetrix less like the mathematical ideal, but a perfect model isn't printable anyway.

I added external support that lets the model print upside-down, which solves the bridging problem. See the instructions for how to customize it and suggestions on how to get a good print.

sierpinski-tetrix.scad 2.9KB
sierpinski-tetrix.stl 84.2KB