Gary i just got a new cnc 4x 8 mill running and am using mach 3 as driver software, i am used to modlemaster type mills so this is all new i am a beta tester for 2011 artcam and i just saw your post how are they working? will they both 3xs and 4axis rotary will be included i would like to have tested for you my mill rotary is not complete yet but should be in the next week or two, i am yet to try a post pross from artcam yet i ave no tool changer either. the mill is just simple set up so any one could run . i am just not up on witch mach3 posts to use from art cam yet.