Intelitek ProMill 8000, User Manual

Page: 165 / 196

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11 An Introduction to CNC Milling
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11.1 Understanding Coordinate Systems 158
11. An Introduction to CNC Milling
This section provides a basic introduction to CNC milling. The following topics are covered.
Section Contents: An Introduction to CNC Milling
Section Name Page
‎
11.1 Understanding Coordinate Systems 158
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11.2 Setting Spindle Speeds 161
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11.3 Setting Feed Rate and Depth of Cut 162
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11.4 Selecting Lubricants and Coolants 163
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11.5 Tool Types 163
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11.6 Sharpening the Tools 165
11.1. UNDERSTANDING COORDINATE SYSTEMS
To understand how the coordinate system works in milling, the following concepts must be explained:
Section Contents: Understanding Coordinate Systems
Section Name Page
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11.1.1 X, Y and Z Axes 158
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11.1.2 Machine Home Position 159
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11.1.3 The Work Coordinates 159
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11.1.4 Multiple Coordinate Systems 160
11.1.1. X, Y and Z Axes
The ProMill has three axis motors. These motors control the movement of the cutting tool and the
cross-slide as follows:

The Z-axis motor moves the spindle up and down, or in and out of the workpiece.

The X-axis motor moves the cross-slide left and right beneath the tool.

The Y-axis motor moves the cross-slide in and out beneath the tool, or toward and away from
the vertical column.
In NC programming, the programs are written as though the workpiece is stationary and the tool is
moving.
The location and direction of the axes are shown in the graphic below.