ACU-RITE MILLPWR 3 Axes - Manual (Page 18)

INTRODUCTION
MILLPWR ®
Operation Manual 1-8
Absolute and Incremental Dimensions
Dimensions that you enter from a print are
either absolute or incremental.
Absolute dimensions are measured
from datum (also known as workpiece
zero). Incremental dimensions are
measured from one point to another.
Holes A and B are dimensioned using
absolute values. Hole C is dimensioned
incrementally from Hole A.
When entering these dimensions, we would say:
Hole A: 002 Position/Drill
X 2.0000 ABS
Y 1.5000 ABS
Hole B: 003 Position/Drill
X 4.0000 ABS
Y 1.5000 ABS
Hole C: 004 Position/Drill
X 3.6250 INC
Y 1.5000 ABS
Note: Both absolute and incremental dimensions may be used to define a position,
as shown with Hole C.
It’s often easier to describe a location in terms of incremental dimensions rather than
calculate its absolute coordinates.
002 - This indicates that the X position will
increment from the X value in Step 2.