Tool Output Point Change

An option for changing the tool output point is available for:

• Recess Turning, Groove Turning, and Groove Finish Turning using grooving tools or inserts.
• Thread Turning (for certain thread profiles) using threading tools or inserts.

When Change Output Point is set the tool output point is changed automatically during the operation according to the profile geometry to be machined.

For Groove and Groove Finish turning , tool output point changes are done out of the profile.

For Recess and Ramp Recess turning, tool output point changes are made before each tool motion involving machining (that is, after each plunge). However, changes are only done:

• if machining is consistent with the selected tool output point
• if another output point is defined on the tool so that the tool output point change can be made.

Otherwise, the tool output point will not be changed.

Tool Output Point Changes in Groove Finish Turning Operation

The following figure illustrates tool output point changes in a Groove Finish Machining Operation that uses a grooving tool. In this example, at the start of operation the tool output point is P9.

If the first flank to machine is flank 1, the tool motion is as follows:

• approach and lead-in motion to flank 1
• machine down flank 1
• lift-off from part profile
• tool output point change: tool output point is P9R
• approach and lead-in motion to flank 2
• machine down flank 2
• lift-off to Exit Point
• tool output point change: tool output point is P9 (as at start of operation).

If the first flank to machine is flank 2, the tool motion is as follows:

• tool output point change: tool output point is P9R
• approach and lead-in motion to flank 2
• machine down flank 2
• lift-off from part profile
• tool output point change: tool output point is P9 and the guiding point is LEFT
• approach and lead-in motion to flank 1
• machine down flank 1
• lift-off to Exit Point.

If P9 is the tool output point and if the output point P9R is defined on the tool, the output point change is only done for grooving tools.

The tool output point at the end of operation is the same as at the start of Machining Operation.

Tool Output Point Changes in Recess Turning Operation

The figure below illustrates Recess Turning when a round insert is used. The tool output point changes during an operation only if the output point at the start of Machining Operation is P2, P3, or P9 for a frontal recess or P3, P4, or P9 for an External Recess.

The tool output point is dependent on the Machine Axis System.