HAM4 HEPI is unlocked and the Chamber went to fully isolated with out issue.

Ran Range of Motion tests of 600 micro units on X Y & RX RY.  See attached for the local sensor response:  First is the X & Y.  On this one I've taken the absolute to show the over lap better.  Can't really explain why they don't overlap on the smaller X drive excursions when it can do the larger Y.  This would appear to not be an interference issue but must be some force problem.  Again, can't explain at this point.  The second plot shows the tilting offsets  and suggests the vertical motion of the greater RY excursion starts to run into something, note: I dod not take the absolute value this time.  I'll look into the details to see if it guides me to a particular spot.  Meanwhile, there is plenty of range available for operation.