Machine tool builders and operators need measuring systems that provide detailed information on machine accuracy with a minimum of time spent on mounting and adjusting. HEIDENHAIN offers three measuring systems that meet these requirements: The KGM 182 grid encoder for circular path, irregular path, and dynamic tests, The DBB 110 double ball bar system for circular test with large radii, and the VM 182 comparator system for measuring position accuracy and guideway error on linear axes. Also available from HEIDENHAIN is the ACCOM software for measurement evaluation which is used in conjunction with all three measurement devices. ACCOM supports WINDOWS 95/98 and 2000/NT 4.0.