1.) I do my designing the old fashion way with paper and pencil. I will have to learn cad etc, but just like web site design programs I find it all very tedious, (reminds me of school home work)
.
2.) None specifically on the FX but there are a few resistors on the PCB that are higher than the ram so these will need to be avoided in a design.
3.) With a CNC I could reproduce things again much more easily, (I hope), and it would allow more complex shapes and sealing solutions, I can't mill curves with my mill so all curved areas & parts are hand made with files. Also once I get CNC I'm sure it will open more doors for me to try other more complex things.
As
nicozeg said and after talking with
JFettig the other night on MSN and some great links he gave me, I may have a go at CNC converting my mill. Wont be soon though as I'm stripping it down due to moving.