Ulendo Puts University of Michigan Research Into the Hands of Makers to Double 3D Printing Output "Filtered B-splines" algorithm modifies G-code in the cloud to maintain quality up to 2X default speed and 20X default acceleration. The first low-cost 3D printer â known as RepRap â was invented over a decade and a half ago, yet consumer 3D printing is still very much in its infancy. It is currently the realm of dedicated enthusiasts, unlike printing a document on a conventional 2D paper printer, which is accessible to even the most non-technical user. Entire subcultures dedicated to b...