Hello Dave
In my opinion the configuration should be independent of where the MC 0,0,0 point is set but I checked your videos again and my mill is set up in the same manner as yours. It also uses a right-handed coordinate system.
I have however thought of a few additional points that may be relevant:
I’m using radius mode (I find diameter mode illogical).
Although I compared some functions on a trial version of v7.0.12 my machine controller is setup with v7.0.6.
When I came up with the calculation in my previous post I was trying to prevent problems if the Y WC Curr Position was reset – but of course it doesn’t solve any problems, and resetting the Y at that point would be a pretty dumb idea anyway. It would have been much easier just to use the Y current position and apply the nub compensation.
SP