CNC Advanced - FANUC Series 21 Lathe and Mill (CNC 421)

Course Details

clock  Duration

 4 days/32 hours

  after/before Prerequisite

Basic CNC technology

list  Category


earth​  Language


CNC machines are one of the most important equipment used in industry to produce parts. This workshop will provide the necessary know-how based on hands-on training on real industrial equipment upon the ISO G-Code language, FANUC variant.

  • Brief introduction about the ISO G-Code language for advanced programs: tool compensations, coordinate system management, main and sub program, cycles.
  • Principles of ISO G-Code FANUC 21 structured program.
  • Set of instructions for tool length and radius compensation for lathe and milling machines.
  • How to start and how to close the tool compensation inside a NC program.
  • The User Coordinates System: how to set and how to change it inside a program.
  • How to write a main program and how to write a sub program.
  • The combination of main and sub programs for repeating a job for an exact number of items; how to call a sub program.
  • The combination of main, sub programs and User Coordinate Systems.
  • The set of cycles included for Milling operations.
  • The set of cycles included for Turning operations.
  • Samples according to FANUC Series 21.
  • understands the basics on how to write a structured program for a CNC Machine equipped with FANUC Series 21 Numerical Control
  • understands how to control the System of Coordinates inside a NC program
  • understands how to control the tools dimensions inside a NC program
  • is able to start and stop in the right way the tools dimensions compensation within turning or milling NC programs
  • knows the structure and the syntax to create a main or a sub program according to ISO G-Code FANUC Series 21
  • knows how to call a sub program inside a main program or another sub program
  • knows how many sub program levels can be used
  • knows the set of standard cycles for Milling operations
  • knows the set of standard cycles for Turning operations
  • is able to simulate the tool path and understand it