Haas TL Series, Руководство по обучению

Страница: 6 / 111

Productivity Inc – Haas CNC TL Series Lathe Operator Manual Page 4
The Cartesian Coordinate System
The first diagram we are concerned with is called a NUMBER LINE. This number line has a reference point
zero that is called ABSOLUTE ZERO and may be placed at any point along the line.
Fig-1 - 1 Horizontal number line – Z Axis
The number line also has numbered increments on either side of absolute zero. Moving away from zero
to the right are positive increments. Moving away from zero to the left are negative increments. The "+",
or positive increments, are understood, therefore no sign is needed.
We use positive and negative along with the increment's value to indicate its relationship to zero on the
line. In the case of the previous line, if we choose to move to the third increment on the minus (-) side of
zero, we would call for -3. If we choose the second increment in the plus range, we would call for 2. Our
concern is with distance and direction from zero.
Remember that zero may be placed at any point along the line, and that once placed, one side of zero has
negative increments and the other side has positive increments.
Fig.1-2 Vertical Number Line – X Axis