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Heidenhain CHF/RND: Chamfer and rounding

Add chamfers or radii between contour moves.

For reference only: syntax changes with the control, the post-processor and the machine parameters. Check the official manual and run a simulation before cutting. Legal notice.

Family
Heidenhain
Machine
Milling, Mill-turn
Risk
Low
Example
CHF 2 / RND 5
E.g.:
CHF 2 / RND 5

Parameters

CHF valor
Longitud del chaflán entre dos rectas. · mm
RND valor
Radio de redondeo entre dos elementos de contorno. · mm
F
Avance propio del chaflán o del redondeo. · mm/min

Machine: Milling, Mill-turnRisk: Low

Heidenhain

  • Check geometric continuity and active compensation.

Other codes in Heidenhain

Heidenhain TOOL CALL Heidenhain tool callHeidenhain TOOL DEF Definition of toolHeidenhain CYCL CALL Cycle callHeidenhain LBL Labels and subroutinesHeidenhain CALL PGM Subprogram callHeidenhain PATTERN DEF Position patternHeidenhain APPR/DEP Contour approach and retractHeidenhain CYCL DEF 1/2 Legacy deep drilling and tappingHeidenhain CYCL DEF 7-11 Basic transformationsHeidenhain CYCL DEF 14/20 Contour and contour dataHeidenhain CYCL DEF 200+ Modern machining cyclesHeidenhain CYCL DEF 200-209 Drilling, reaming, boring and tapping
See the full list of G and M codes

Frequently Asked Questions (FAQ)

What does Heidenhain CHF/RND mean in a CNC program?

Add chamfers or radii between contour moves. In the catalogue it appears as "Chamfer and rounding", within the Heidenhain family.

Can you give me an example of Heidenhain CHF/RND?

CHF 2 / RND 5 — Add chamfers or radii between contour moves.

Which machines use Heidenhain CHF/RND?

Heidenhain CHF/RND is used in: Milling, Mill-turn.

What should you watch out for with Heidenhain CHF/RND?

Low risk: it is a state instruction that rarely causes damage on its own, although it is worth writing it out so you do not depend on the machine's previous state.

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