I previously posted a thread calling it z-axis problems..it is and isn't a z-axis problem...I had a lot of conversation back and forth with a very knowledgeable guy, he wasn't familiar with vcarve but still had excellent incite on the problem.....however i'm still in the same boat, i'm hoping some vcarve guru catches this....when I generate gcode, using v-carve, I go in and zero my machine to the left lower corner of the material with x,y and to the surface of the material with z. I load the gcode and when I hit run one of two things happens (or both)...it either just buries the bit to the hilt and I have to emergency stop, or it will go into the material then pick up and hover above the material and proceeds to cut the program in the air...I've followed a couple of vectric tutorials to the last detail and still the same kind of problems with the gcode. I can't figure out what im missing..is it a setting in mach 3? am I missing some setting in vcarve? or is my freshly built machine that is still trying to get its first project under its belt just flat crazy? lol....I'm certain some setting in one of the two programs is being overlooked or i'm doing something wrong when producing the gcode...This is a DIY machine, not name brand but the software is surely name brand or at least name brand prices!....I'm understanding when setting up the Z-axis up is negative and down is positive on Mach 3 however, in the gcode down is negative and up is positive...not the smoothest of systems, but I got it...just cant figure out what is up with the Z side of things when I go to cut....any help would be greatly appreciated !!