Introduction: Octostool - Generative Design in Fusion 360

This experiment was my first introduction to generative design in Fusion 360 for the Computational Design and Fabrication course at MAT. The design task was to create a structurally optimized or generative chair. I chose to work with generating a stool with eight legs to learn the basic workflow of the system.


Autodesk Fusion 360

Creality Ender 3 Pro

Step 1: Setting Up the Base Generative Design Study.

I started by creating extruded objects for the eight legs and the stool seat. I also created geometries to act as obstacles to promote eight individual legs to form. I set the base of the legs as fixed constraints and added a load force to the stool seat.

Step 2:

Running the study produced a view geometries that seemed to converge to very similar results. I chose one somewhat arbitrarily in this first study to export it and 3d print it.

Step 3: 3d Print

The stool was designed to fit a human. The generated mesh was exported as an STL and sliced in Cura, scaled uniformly to 5%, and printed using brims and support structures. I will post the final print results when it is finished.

I should probably have printed at a slightly larger scale, as the legs are quite thin and two feet broke off as I removed it from the bed. The support structure is too substantial to remove without damaging the model.