Interactive Klartext course · Lesson 15 / 15

Parametric contours with Q parameters

Collect important dimensions in Q parameters, then use the same programmed profile for more than one machining pass.

Start this interactive lesson See the example

What you will learn

Assign named numeric dimensions to Q parameters at the start of the program.
Use the parameters in contour coordinates and process values.
Reuse the profile with different tools, depths or offsets.

How it works

A parametric contour separates design values from the blocks that use them. Changing one parameter can update every dependent coordinate or depth consistently.

The final TNC Sim lesson combines earlier topics: tool calls, safe positioning, contour functions, compensation, labels and a second chamfering pass.

Klartext example

Try the essential blocks

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

Q1 = +0
LBL 1
 L X+10 Y-10 Z+50 FMAX R0
 L Z+Q1 FMAX
 L X+5 F500 RL
 L Y+95
 RND R15
 L X+95
 L Y+5
 CHF 15
 L X-5
 L Z+50 FMAX R0
LBL 0

Ready to practice?

Write the blocks and check the 3D result

Open lesson 15 in TNC Sim