A client of mine asked me for a 3D printed doughnut, I could not find a model that satisfied what I was looking for, so I decided to make my own model of it. The client cancelled the project, but I finished the model anyway. I did it the same way as for my One Ring model, drawing fake level maps of the donuts, and plotting them on a toroidal coordinate system, using MATLAB R2016a. They are intended to be as realistic as possible, however, I didn't have a donut on hand to use as reference when modelling, they were made by guessing their sizes, curvatures, shapes, etc, so that some details may be wrong or exaggerated.

I spend part of my time making these models, letting them available and free for everyone. If you want to support my work, you can contribute with me here: