This is the workhorse of any turning program. The manual provides a deep dive into the and Type II pattern repeats.
If you are a shop supervisor or educator, do not simply hand the 600-page to an apprentice. It will overwhelm them. Instead, use a phased approach:
After a G71 or G72 cycle leaves a clean skin of stock, G70 reads the exact same P and Q profile blocks to execute a high-precision final pass. G70 P(start_block) Q(end_block) F(finish_feed_rate) Use code with caution. G76: Threading Cycle
A robust program begins with safe startup blocks to ensure the machine starts in a known state. Essential Startup Codes Metric (mm) or Inch input.
| 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 | fanuc series oitf plus programming manual
B-64604EN-1/01 Applicable Model: FANUC Series Oi-TF Plus (For Turning)
These simplify roughing and finishing operations.
To effectively program the Fanuc Series OiTF Plus, it's essential to understand the following techniques:
Note: Always use decimal points for dimensions. Writing X50 without a decimal point can be interpreted by the controller as 50 microns ( X0.050 ), leading to severe machining errors. 3. Essential G-Codes for Turning (Lathe) Operations This is the workhorse of any turning program
After running a G71 or G72, you use G70 to finish. However, the manual explicitly states that only linear (G01) and circular (G02/G03) moves are allowed between the P and Q blocks. An M-code or extra G-code will cause an alarm.
The Fanuc Series OITF Plus is a high-performance CNC system designed for machining and other applications. It features a robust and compact design, making it ideal for use in various industries. This system is equipped with advanced features, such as high-speed machining, precision control, and user-friendly programming.
For more information on the Fanuc Series OiTF Plus programming manual, refer to the following resources:
For more information on the Fanuc Series OITF Plus programming manual, users can refer to the following resources: It will overwhelm them
Utilize the machine's "Dry Run" mode and single-block execution when testing a new program to prevent crashes.
The following example illustrates a standard safe-start routine, a rough-turning operation using a canned cycle, and a safe exit sequence on a FANUC 0i-TF Plus system.
Cancel compensation, canned cycles, and set feed per revolution. G28 U0 W0 : Return to home position to ensure a safe start. Defining the Workpiece (Manual Guide i)