I am pleased to announce version 1.00p of my fork of RepRapFirmware for Duet and similar controller electronics. More details available here [
forums.reprap.org].
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].