Are you comfortable editing your post? If so look over the post code below, there should be a section like this in you post. #Rotary axis travel limits, always in terms of normal angle output #Set the absolute angles for axis travel on primary pri_limlo$ : -9999 pri_limhi$ : 9999 #Set intermediate angle, in limits, for post to reposition machine pri_intlo$ : -9999 pri_inthi$ : 9999 #Set the absolute angles for axis travel on secondary sec_limlo$ : -20 *this line sets your -rotation limit sec_limhi$ : 120 *this line sets your +rotation limit #Set intermediate angle, in limits, for post to reposition machine sec_intlo$ : -120 sec_inthi$ : 120 You can play around with those values to get what works for your situation. We typically only run a -20 rotation to force most the trunnion rotations to stay on the operator side for visibility. But there are certain situations where we open it up to allow more negative motion, mainly for true 5ax motion. There are only certain setting that the Machine and Control definition actually control, other things are still controlled by post values, and there are even some that the post will overwrite whatever the Machine and Control defs are set to. Hope this helps, I know I fought with this exact same thing until digging into the post settings...

Actually, check the cutter offset value on the backplot options screen. X5 automatically adds half the cutter diameter and it shows the tool off the surface you are trying to cut. Its just a visual issue, the actual nc code is correct, by setting the value back to 0 it should display correctly.