I've always found the chunky cable drag chains on CNC machines rather sexy so getting the cables to move properly was a major priority, right from the initial design concept. 

Unlike all other CNC machines to date, the 'Y' axis motor for the WEEDINATOR runs inside the chassis of the machine rather than on top, which results in a massive reduction in overall height of the machine. How the cables within the chassis would behave was indeed a major concern. Would the drag chains have enough room to swivel around within the narrow confines of the chassis? In the end, I need not have worried as the cable management performs perfectly.

The photo below shows the CNC in maximum 'Y' axis travel with the drag chain curled up nicely on the far right.