CNC Machine Coordinate System
The Coordinate system is the
fundamental system used to describe the motion of the tool and work price
within a three – dimensional space. CNC machine use numbers to locate a
particular point along the X, Y, and Z-axis. They perform a series of instructions,
one after another to machine the workpiece and create incredibly accurate dimensions.
CNC machine used either
incremental or absolute coordinates system to move from one location to other
location.
With incremental
coordinates, the current position acts as the origin for the next position.
With absolute coordinates,
the origin stays in a fixed location, and each new location is calculated from
that fixed position.
Most CNC machines can move
along multiple axes at once to perform contour operations.
The axes on any CNC
machine are determined by set standards. The Z-axis is always parallel to the
machine spindle. On a machining center, the spindle holds the cutting tool. On
a turning center, the spindle holds the rotating workpiece. Nowadays, CNC
machines can create complex shapes such as circles, curves, and cones
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