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User's Manual ISO TNC 360 (260020xx, 280490xx) - heidenhain

User's Manual ISO TNC 360 (260020xx, 280490xx) - heidenhain

User's Manual ISO TNC 360 (260020xx, 280490xx) - heidenhain

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4 Programming<br />

4.3 Tool Compensation Values<br />

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

For each tool, the <strong>TNC</strong> adjusts the spindle path in<br />

the tool axis by the compensation value for the tool<br />

length. In the working plane it compensates the<br />

tool radius.<br />

Effect of tool compensation values<br />

Tool length<br />

Length compensation becomes effective automatically as soon as a tool is<br />

called and the tool axis moves.<br />

To cancel length compensation, call a tool with the length L = 0.<br />

Tool radius<br />

Radius compensation becomes effective as soon as a tool is called and is<br />

moved in the working plane with G41 or G42.<br />

To cancel radius compensation, program a positioning block with G40.<br />

Tool radius compensation<br />

Tool traverse can be programmed:<br />

• Without radius compensation: G40<br />

• With radius compensation: G41or G42<br />

• As single-axis movements with G43 or G44<br />

Fig. 4.4: The <strong>TNC</strong> must compensate the length and radius of the tool<br />

R<br />

Fig. 4.5: Programmed contour (–––, +) and the path of the tool<br />

center (- - -)<br />

R<br />

4-11

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