Finally found some time to work on the printer. The main addition has been the spreader beam and recipe for print material which I'm testing from the reprap wiki. The beam is an old printer axle held in with some wire. An optical encoder has been added to the bed drive motor. And all the electronics have been redone to use a dsPIC30F3012. Next thing to do is finish the control loops and the state machine to run the whole system and then fiddle with material and binder fluids.