OK, so I read Susan Woods posting about the Z axis being off sometime (causing one to have to reboot the machine after each print) and noticed she mentioned in that post some details about her hot end and the way it was mounted. I too noticed mine was mounted a bit strange, but at first I just left it as is. Since I ran into a problem trying to print a job that was almost the full 120mm and having it stick off the back and be a good 10 mm or more from the front of the bed, and also got no replies or suggestions about how to modify the x and y axis of the hot end's location for prints, I started messing with my machine and ended up moving my hot end too. I pulled my hotend forward towards the front circle cut out and mounted it flush with the top of the acrylic.(see 1st photo) The set screw sticks out almost to the edge of the fan, but it put the head more forward on the bed and looks more stable. However after doing a few prints and not being happy with the sudden more stringy results, as well as seeing a photo from Jack here in the forum and how his hot end is mounted (see photo 2)I am wondering if I made the right decision. Moving the hot end forward and down a good 4 to 5 mm makes me wonder if the fan blowing down on the filament after it is laid down may no longer be pointed in the perfect position to cool it properly (thus causing more stringiness in my prints). Photo 1 - my hot end - https://www.dropbox.com/s/udhxy5q65ea00zp/IMG_0885.jpg?dl=0 Photo 2 - Jack's hot end - http://imgur.com/lUT3Kjt Any comments?