Printed from Kezuriba (kezuriba.net/en/nc/g09/)

G09

Machining center, LatheOne-shot, group 00

Exact stop (this block only)

⌨Format and notes

G09 G01 X_ Y_ F_

Decelerates and stops at the end point of the commanded block to confirm position before moving on. Does not affect the next block
Use it only where you want a sharp, unrounded corner. For a lasting effect, use G61

Diagram: Corner motion: exact stop and cutting mode

G09 decelerates and stops only at the end of its own block and checks position before moving on, so the corner comes out sharp. Use G61 to keep it in effect.

📚Sources

The meaning shown agrees in at least two sources (agreement confirmed). Explanations are written in our own words.

Siemens AG — SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D Programming Manual ISO Milling, 04.2007 Edition (6FC5398-7BP10-0BA0) cache.industry.siemens.com
Haas Automation, Inc. — G-code, M-code, and Setting (per-code explanation pages) haascnc.com
Haas Automation, Inc. — Mill Operator's Manual – 17 Mill G-Codes (online version) haascnc.com
Haas Automation, Inc. — Lathe Operator's Manual – 16 Lathe G-Codes (online version) haascnc.com