Heidenhain CYCL DEF 270/275/276: Contour train, trochoidal slot, 3D train

CYCL 270: contour train data. CYCL 275: trochoidal groove (oscillating machining). CYCL 276: 3D contour train.

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: High
Example: CYCL DEF 270 CONTOUR TRAIN DATA / CYCL DEF 275 TROCHOIDAL SLOT

Heidenhain CYCL DEF 270/275/276

Heidenhain

Contour train, trochoidal slot, 3D train

E.g.:

CYCL DEF 270 CONTOUR TRAIN DATA / CYCL DEF 275 TROCHOIDAL SLOT

Machine: Milling, Mill-turnRisk: High

Heidenhain

CYCL 275 is especially useful for grooves in difficult materials; check radial pitch.

Other codes in Heidenhain

Heidenhain TOOL CALL Heidenhain tool call Heidenhain TOOL DEF Definition of tool Heidenhain CYCL CALL Cycle call Heidenhain LBL Labels and subroutines Heidenhain CALL PGM Subprogram call Heidenhain PATTERN DEF Position pattern Heidenhain APPR/DEP Contour approach and retract Heidenhain CHF/RND Chamfer and rounding Heidenhain CYCL DEF 1/2 Legacy deep drilling and tapping Heidenhain CYCL DEF 7-11 Basic transformations Heidenhain CYCL DEF 14/20 Contour and contour data Heidenhain CYCL DEF 200+ Modern machining cycles

See the full list of G and M codes

Frequently Asked Questions (FAQ)

What does Heidenhain CYCL DEF 270/275/276 mean in a CNC program?

CYCL 270: contour train data. CYCL 275: trochoidal groove (oscillating machining). CYCL 276: 3D contour train. In the catalogue it appears as "Contour train, trochoidal slot, 3D train", within the Heidenhain family.

Can you give me an example of Heidenhain CYCL DEF 270/275/276?

CYCL DEF 270 CONTOUR TRAIN DATA / CYCL DEF 275 TROCHOIDAL SLOT — CYCL 270: contour train data. CYCL 275: trochoidal groove (oscillating machining). CYCL 276: 3D contour train.

Which machines use Heidenhain CYCL DEF 270/275/276?

Heidenhain CYCL DEF 270/275/276 is used in: Milling, Mill-turn.

What should you watch out for with Heidenhain CYCL DEF 270/275/276?

High risk: a mistake here can cause a crash, a broken tool or an out-of-tolerance part. Simulate the program and dry-run it before cutting.

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