Command Architecture & Functional Overview
G85 vs G86 Precision Boring Canned Cycles is a fundamental CNC programming directive utilized across Fanuc, Siemens, Haas, and Heidenhain controllers for Feed-in feed-out boring (G85) for smooth bore walls vs feed-in spindle-stop rapid-retract (G86) for rough boring cuts..
Syntax Structure & Execution Parameters
- Command Category: Precision Boring Cycles (Modal Canned Cycle).
- Standard Syntax:
G85 X0 Y0 Z-30. R3. F50. / G86 Z-30. R3. F80.. - Operational Function: G85 feeds out; G86 stops spindle and rapids.
- Critical Safety Rule: G85 produces scratch-free H7 bearing bores; G86 saves time in rough boring but leaves a single vertical line on bore walls.
- Production Integration: Tested and standardized across UCAN ROBOT's 150+ high-precision CNC machining centers for zero-collision continuous automated manufacturing.
Explore our technical equipment capabilities in 5-Axis CNC Milling and review our standards in Precision Machining Quality Control.