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User's Manual TNC 360 (from 259 900-11) - heidenhain

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12 Tables, Overviews, Diagrams<br />

12.3 Preassigned Q Parameters<br />

12-14<br />

Overlap factor: Q<strong>11</strong>2<br />

The overlap factor for pocket milling (MP 7430) is assigned to Q<strong>11</strong>2.<br />

Unit of measurement: Q<strong>11</strong>3<br />

The value of Q<strong>11</strong>3 specifies whether the highest-level NC program (for<br />

nesting with PGM CALL) is programmed in millimeters or inches.<br />

After NC start, Q<strong>11</strong>3 is set as follows:<br />

Unit of measurement (main program) Parameter value<br />

Millimeters Q<strong>11</strong>3 = 0<br />

Inches Q<strong>11</strong>3 = 1<br />

Current tool length: Q<strong>11</strong>4<br />

The current value of the tool length is assigned to Q<strong>11</strong>4.<br />

Coordinates <strong>from</strong> probing during program run<br />

Parameters Q<strong>11</strong>5 to Q<strong>11</strong>8 are assigned the coordinates of the spindle<br />

position upon probing during a programmed measurement with the 3D<br />

touch probe.<br />

Coordinate axis Parameter<br />

X axis Q<strong>11</strong>5<br />

Y axis Q<strong>11</strong>6<br />

Z axis Q<strong>11</strong>7<br />

IV axis Q<strong>11</strong>8<br />

Current tool radius compensation<br />

The current tool radius compensation is assigned to parameter Q123 as<br />

follows:<br />

Current tool compensation Parameter value<br />

R0 Q123 = 0<br />

RL Q123 = 1<br />

RR Q123 = 2<br />

R+ Q123 = 3<br />

R– Q123 = 4<br />

<strong>TNC</strong> <strong>360</strong>

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