I've just published another installment to my delta printer build and upgrade blog at [
miscsolutions.wordpress.com]. This one covers upgrading the printer to Duet WiFi electronics, including use of a PT100 sensor in a 4-wire configuration.
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].
