{HEAD ~ The control system} takes into account the displacement of the platform from the support ends and adjusts {TAIL ~ the Z axis displacement} during Y axis traversal 
{ HEAD ~ The control system } takes into account the displacement of the platform from the support ends and adjusts { TAIL ~ the Z axis displacement } during Y axis traversal
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH