Voxels make sense in some types of 3D printing. But for almost none of the reasons the Author described.<p>The author makes a case that every 3D print manufacture has known since the day they started. Each "squirt" of print media is a volumetric dot. A Voxel.<p>The problem is that each brand printer has a different sized "dot". So the Voxels from one format might not directly correspond to your object. Sure some printers could print at a lower resolution [larger dot / voxel], but rendering a pattern from a smaller voxel to a larger is VERY difficult. Errors result in pieces that don't connect, or detail being removed.<p>Polygons work like the "How many tennis balls on the bus" and create a container for the media, but also allow for non spherical output. You can build a column or an arch from a steady stream of media. You can't do this with voxels.<p>Voxels would work better if we were in Zero Gs as well because Printers can't actually make round dots, they are always deformed by gravity and contact.