Zack Freedman, hacker and prototyper extraordinaire, came up with the Gridfinity system a few years ago. Here's the launch video. It's pretty simple: a modular, grid-based system of base … read more »

Over Thanksgiving/National Day of Mourning, I upgraded my Prusa Mk4 to the Mk4S. When I went to initiate the self-test, it failed. I hadn't run the test in a while … read more »