I have just finished building my Ultimaker Origional + yesterday and printed the robot without many problems. I tried to do and Eiffel Tower and it only prints the first few layers before no more PLA plastic comes out. I had the nozzle at 220C, the bed at 60C and the speed was 30 mm/s. The layer height was .06mm. The first time barely any plastic came out but the printer went through all the motions. I tried again and it was very choppy. Is this a feeder problem or is the temperature wrong?