Yes this machine has had a history, I used the pb support(not the support I was looking for, for say a live call department) as well as some experimentation. The z stop dosnt trigger or stop the y axis when touched to metal, so I tried a limit switch and as I said before the limit switch didn't work. I am using cura because I had problems with repetier in the past. Other from the z stop in general not "working" or stopping the head. It has a full range of movement, the extruder motor, hot end, and the x and y stop both work as advertised.