The G71 cycle removes material in linear steps parallel to the Z-axis (O.D. or I.D. turning). It uses a two-line block format on FANUC systems. G71 U0.1 R0.05 G71 P100 Q200 U0.02 W0.005 F0.012 Use code with caution.
Writing every single roughing and finishing pass line-by-line would result in thousands of lines of code. The 0i-TF Plus features powerful canned cycles that calculate roughing passes automatically from a predefined finish profile shape. G71: Stock Removal in Turning (Roughing Cycle)
: Feature a "Fast Cycle-Time" cheat sheet. The 0i-F Plus includes a Fine Surface Setting Screen
Before writing a single line of code, you must establish where the machine is and where the part is located. Machine Coordinate System (G53) fanuc series oitf plus programming manual
: Codes like IF [#1 GT 10] GOTO 100 let the machine make smart, independent routing decisions while running. 5. Troubleshooting and Best Practices
If your machine setup has a milling spindle on the turret, you can switch from conventional turning mode to rotary axis mode using M-codes (often M20 or M210 depending on the machine builder).
For applications requiring sophisticated logic, automation, or custom cycles, the 0i-TF Plus supports , which is FANUC's powerful implementation of parametric programming. Its core features include: The G71 cycle removes material in linear steps
Did you include decimal points on all dimensions (e.g., X1.0 instead of X1 )?
G76 P020060 Q050 R0.05; G76 X27.0 Z-40.0 P975 Q300 F1.5;
| Parameter | Meaning | |-----------|---------| | ∆d | Depth of cut (radius value, unsigned) | | e | Retract distance | | ns | Block number of first contour block | | nf | Block number of last contour block | | ∆u | Finishing allowance in X (diameter, signed) | | ∆w | Finishing allowance in Z | | f, s, t | Feed, speed, tool used in roughing | It uses a two-line block format on FANUC systems
. For every conversational cycle (e.g., rough turning, grooving, threading), show the 0i-TF Plus icon alongside the resulting G-code blocks. This helps operators understand what the CNC is doing "under the hood". 3D Verification Quick-Steps
G71 U2.0 R0.5 ; G71 P10 Q20 U0.4 W0.1 F0.25 ; N10 G00 X20.0 ; G01 Z-30.0 ; X40.0 Z-50.0 ; N20 X50.0 ; Use code with caution. Depth of cut per pass (radius value). First Block R: Tool retract distance after each pass.
: End of Program (Rewinds back to the top of the program). 5. Canned Cycles: Simplifying Complex Toolpaths
Fine-tune dimensions during production to account for gradual cutting edge erosion. 2. Essential G-Codes for Lathe Programming