Posts in hardware

Over in another post, I've been working on getting an old 3D printer up and running. It became clear by the end of that post that I need to understand g-code better. So here's my attempt at that. (These are effectively notes for myself, and if they help someone else out, all the better.)

Several months ago a friend with more 3D printers than time loaned me a Printrbot that needed some love. This weekend, I finally sat down and started working on it banging my head against it repeatedly.