Having problems with machine. Raised the head assembly up to clean out machine and to check sensors. after cleaning the head assembly will not go back down, it acts like it is under preasure. to top it off machine LED is reading in a foregin language. this is getting to be too much of a headache. All I wanted was nice machine to make simple projects. right now most of the stuff i make i can carve by hand using 1600 grit sandpaper faster than i can set them on software and carve them out. and then i still have to clean them up. A sledgehammer is looking good right now for my machine.