Interactive Klartext course · Lesson 7 / 15

Radius compensation with RL, RR and R0

Program the finished part contour while the control offsets the tool-centre path by the active cutter radius.

Start this interactive lesson See the example

What you will learn

Choose RL or RR from the tool movement direction along the programmed contour.
Approach the compensated contour with enough space for the offset.
Cancel compensation with R0 on a suitable departure move.

How it works

RL places the tool to the left of the programmed contour and RR places it to the right, viewed in the direction of tool travel. The tool radius comes from the active tool data.

Compensation changes the tool-centre path, not the programmed finished contour. TNC Sim keeps exact line and arc geometry through compensation and shows the offset path for inspection.

Klartext example

Try the essential blocks

This compact example introduces the lesson topic. Use the guided practice for the complete checked exercise.

TOOL CALL 1 Z S10000 F500
L X+0 Y+60 Z+2 FMAX R0
L Z-5 F200
L X+10 Y+50 RL
L X+50
L Y+10
L X+60 R0

Ready to practice?

Write the blocks and check the 3D result

Open lesson 7 in TNC Sim