Acu-rite Micro-Line T Manual de usuario descargar pdf (Pagina 16)

MICRO-LINE Reference Manual

OPERATION

Setting the Datum (Absolute Zero)

MICRO-LINE allows you to measure both absolute and incremental

dimensions. A dimension measured from the point you define as the

datum is an absolute dimension. A dimension measured from any other

point on your print is an incremental dimension.

Datum, also known as absolute zero or workpiece zero, is the reference

point from which

MICRO-LINE will base all of your part’s coordinates.

When the readout is in the ABS mode, it is actually measuring the dis-

tance from the datum to the machine axis’current position.

You will need to establish a datum for every job. Your datum may

already be identified on your print; if it isn’t, then establish a datum that

allows you to measure most of your part’s dimensions directly, with the

least number of calculations.

All of the dimensions in the drawing below are based from the datum.

MLTmanual.QXD 2/12/02 4:10 PM Page 30

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Acu-rite Micro-Line T Manual de usuario Pagina 16