Micro-Theta Rotary (MTR) MICRO-THETA ROTARY (MTR) BRINGS TRUE FOURTH AXIS MEASURING CAPABILITY TO OGP DIMENSIONAL MEASUREMENT SYSTEMS The Micro-Theta™ Rotary (MTR) brings true fourth axis measuring capability to OGP dimensional measurement systems.Automatically rotate parts to present a different view to the measuring system, with no need to re-measure datum featuresOGP 3D metrology software includes rotary axis calibration routines to locate the rotary in 3D spaceMicro-Theta Rotary may be mounted horizontally or vertically, per application requirementsPair the Micro-Theta Rotary with other OGP rotaries to add a fifth axis of rotation TECHNICAL DATA POSITION RESOLUTION 2 arc seconds POSITION ACCURACY ± 5 arc seconds SOFTWARE ZONE3 MeasureMind 3D