A real-time error compensation system was developed to improve the geometric-thermal
volumetric accuracy of a T-10 machining center by using sensing, metrology, modeling, and
computer control techniques. Including thermal errors, 32 error components are formulated
as a four-dimensional error field in the time-space domain. Fifteen thermal sensors are used
to characterize the temperature field of the machine. A compensation controller based on the
IBM/PC has been linked with an Acramatic-950 CNC controller to compensate for machine …