has a nice write-up about building his Ultra MegaMax Dominator (aka UMMD) 3D printer:
Ultra MegaMax Dominator (aka UMMD) is my third 3D printer design/build. I used much of what I learned from its predecessors, and tried a few experiments, resulting in a very high quality machine that produces very high quality prints. Time will tell if it meets my reliability goals.
See the full post on Mark Rehorst’s blog.