I bought one from that well known auction site. It was minus the extruder. A quick look on thingiverse made me think I could do a mod and fit an off the shelf one. I didn't realise that I needed a PCB to receive the ribbon cable. I don't suppose you know how the pinouts for the PCB so that I can connect an extruder etc.? I have ordered a PT100 thermistor to make it compatible with the Up! software.