Re: Lathe - long boring bar whacking turret after facing tool
Pretty sure adding a G53 Xa.aaa Za.aaa before a tool change will do what you want, then a G54 again after the tool change. At least that works on a Haas lathe. The G53 uses the machine absolute coordinates relative to the home position, so you can place the carriage in a safe location for the tool change without regard to the tool offsets. Then the G54 puts the coordinate system back to WCS with the tool offsets applied.
There should be a switch in MC that would turn this feature on & off in the post setup.
Jim Dawson
Sandy, Oregon, USA