Hi Keith, how is your hot wire cnc progressing? Just joined to learn more about cnc routing and hopefully build one in the future but have already built a foam cutter from the same plans you are using. I used hobbycnc foampro board and stepper kit and running it with GMFC, it is a simple machine, works reasonably well but quite slow compared to more complicated but smoother running builds, cuts great cores that are so much better that anything possible with a drop arm set up and no more template cutting which for me is the best bit of all. I would recommend using a bow for the hot wire though, the spring set up in the plans puts tension on the towers and the drawer sliders need all the help they can get. Like your website by the way, you may find mine interesting also http://valegliders.com

Mark