A 3D printer that implements two polar axes, instead of the traditional cartesian coordinate system that uses X and Y axes.
Why dual polar axes?
The two polar axes ensure a simple yet efficient design as there is no need for belts, pulleys, bearings, and linear bearings for the X and Y axes; all of these parts are replaced by 3D-printable gearheads that create the σ and τ axes. Thus, I was able to design a fully 3D printed mechanism for the axes of the 3D printer.
How I built it?
It took me 3 years (2014-2017) to perfect the design and the code. The CAD model was created in Autodesk Fusion 360, designed to be 3D printed by almost any 3D printer.
On the left is a photo of the first functional prototype (without 3D printed parts)