Programming instructions

5-24

Tool Corrections NC Programming 17VRS

DOK-MTC200-NC**PRO*V17-ANW1-EN-P

5.4 Tool Path Compensation

Inactive Tool Path Compensation

If no edge radius/cutter radius path compensation is active, the theoretical

edge tip

is used as the reference point for the controller. The theoretical

edge tip

will always move on the programmed contour in this case.

However, this will lead to errors if the movements are not parallel to the

axes.

PB B

: erzeugte Kontur

: Bahn der theoretischen Schneidenspitze 'P' (programmierte Kontur)

: Bahn des Schneidenmittelpunkts 'S'

Schneidenlage 3

P theoretical edge tip

S edge center

B actual touch point

Fig. 5-11: Errors which will result if machining is performed without using tool

edge radius path compensation

The shaded area in the drawing will not be removed since the controller is

using the theoretical edge tip P as its point of reference.

If edge radius / cutter radius path compensation is on, the CNC automati-

cally places the actual point of contact B on the programmed contour.

Thus, the resulting contour is identical to the programmed contour.

Edge orientation

: resulting contour

: path of theortical Edge peak ‘P’ (programmed contour)

: path of Edge center