beautypg.com

Fk free contour programming – HEIDENHAIN TNC 426 (280 476) Pilot User Manual

Page 24

background image

25

FK Free Contour Programming

FK Free Contour Programming

See “Programming Tool Movements – FK Free Contour

Programming”

If the end point coordinates are not given in the workpiece drawing

or if the drawing gives dimensions that cannot be entered with the

gray path function keys, you can still program the part by using the

“FK Free Contour Programming.”

Possible data on a contour element:

• Known coordinates of the end point

• Auxiliary points on the contour element

• Auxiliary points near the contour element

• A reference to another contour element

• Directional data (angle) / position data

• Data regarding the course of the contour

To use FK programming properly:

• All contour elements must lie in the working plane.

• Enter all available data on each contour element.

• If a program contains both FK and conventional blocks, the FK

contour must be fully defined before you can return to conventional

programming.

These dimensions can be programmed with FK