If you are referring to the RepRapPro Huxley Duo kit, they only used shielded cables to make it possible to claim CE approval for an assembled printer.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].