Expert Machinist > Tool Path Display and Output > To Add a Break Point
  
To Add a Break Point
When displaying the tool motion, you can make the tool stop at certain points by adding break points in the CL file listing.
1. In the CL data listing, select a line where you want the tool to stop.
2. Click NCL File > Add break point.
The system indicates the break point by placing a red downward arrow to the left of the selected CL line.
When you play the tool motion, the tool stops upon reaching the break point line. You can, for example, click Tool Clearance at this point, to measure tool interference or clearance. To resume playing the tool path, click the Play Forward button again.