I bought my G0704 mill and am in the process of gathering all the pieces to do the CNC conversion. I found most of the parts for the CNC control box at a repurpose store locally. Smokin deal for a box, E-stop and other misc. stuff. My question is will a 120 AC fan have an adverse affect on anything in the CNC controller box? I picked it up for 6 bucks figured what the heck....if I can't use it on the controller box then maybe I will find another use for it. The fan is the same size as a normal computer fan....maybe a hair bigger.