I'm building the same mill as steve and was looking for advice from the forum members as i go. i was having problems with the electronics untill i got a link from a forum member from steves build and it proved to be the solution. here is the link to the video. <iframe width="420" height="315" src="http://www.youtube.com/embed/yvfn82KQoC0" frameborder="0" allowfullscreen></iframe>