It's so hard to calibrate everything on the cupcake :-(
I don't have enough time in my life to spend on calibration. I so hope for a process to calibrate the machine. Meanwhile, I will try with the new MK5 from Makerbot . I hope This will help me to start printing more then just some little pieces of crap. By the time the MK5 come home, I will try to set my machine to find is 0,0,0 before each print.