To my limited understanding and very over-full grey matter, the actual running of G-Code for cutting using DIY CNC often involves all of the following with the potential for incompatibilities and failure-points:

• PC,
• Windows/Linux,
• Mach3,
• Cabling whether Ethernet or EPP or USB,
• Bob,
• External Motion Controller


Just the thought of being able to simplify and replace all this with an offline motion controller and a USB stick is extremely appealing to this novice. So I'm following all the discussion on this thread with massive interest, many thanks to all of you from down under!