I've been working on an affordable CNC Plasma machine. It utilizes a seldom used center lead screw and stationary gantry style of design. I chose to do this because it allows you to you a single drive motor and less drive components than having a dual drive x-axis system. The center leadscrew will be protected from the cutting path both with distance and a steel cover. This is a 2' x 4' machine with a 4" travel z-axis. The top box does have replaceable steel slats as well. The rest of the plans are on there way and will be free!
