EXAMPLE - MILL SPINDLE COMPARATOR Use your mill equipped with a DRO to make precise measurements.
MICROSCOPE ATTACHED IN PLACE IN THE MACHINE SPINDLE. NOTE THE MACHINISTS SCALE UNDER THE OBJECTIVE. THERE IS A CAMERA IN PLACE OF THE EYEPIECE THAT SENDS THE IMAGE TO A COMPUTER FOR VIEWING.
COMPUTER SCREEN IMAGE. THE SCALE DIVISION WIDTHS ARE MAGNIFIED TO ABOUT 50X.
THE DRO SHOWING THE WIDTH OF THE LINE ON THE SCALE AS 0.0122 INCHES. THERE IS A RETICLE OVERLAY ON A COMPUTER SCREEN FOR REFERENCE TO THE MOVEMENT OF THE X OR Y AXIS OF THE MACHINE TABLE FOR MEASUREMENT.