In step turning, different parts of a cylindrical workpiece are turned to different diameters. The finished component therefore includes two or more diameter or “steps”. Step Turning CNC Lathe Programming Example This program is for Step Turning / Taper Turning on a CNC Lathe. It will create a cylindrical job with a stepped profile with…
The following CNC lathe program demonstrates a simple external threading operation using the G33 threading cycle. In this example, the CNC lathe cuts an M20 × 2.0 metric thread over a 30 mm length in a single threading pass. This program is intentionally kept very simple and uses a single threading pass without multiple cutting…
CNC Pocket Milling is a very important process. It is a process in which a specific depth of a box, cavity or hole (Pocket) is cut out by a CNC machine inside a metal block (Workpiece). In simple words, its purpose is to empty the interior of a material to a specific shape and depth,…
Short and standard G-code CNC program example for slot milling (often called pocket milling or slotting with a flat end mill). This example using an 8 mm flat end mill to cut a slot that is 10 mm wide, 50 mm long, and 5 mm deep in a workpiece made of aluminum or steel. M03…
Simple and clean Example for circular interpolation using G02 (clockwise arc) and G03 (counter-clockwise arc) on a CNC turning. Programming Example (Turning Center)
When we make a radius (R) on a corner or edge while cutting on the outside of a job, it is called Outside Turning with Radius. This process eliminates the sharp corners of the job. Example of a Simple CNC Program Description: Outside profile turning operation featuring straight cuts, an R8 mm fillet, and an…
Writing a CNC program for a rectangular pocket involves defining the toolpath to clear material from the inside of a boundary to a specific depth. Below is a standard G-code program using Absolute Programming (G90) and a Linear Interpolation strategy. For a rectangular pocket, the most efficient method is a Ramp or Spiral entry followed…
For drilling, we primarily use Canned Cycles, which are shortcuts that pack several movements (positioning, plunging, and retracting) into a single line of code. Here is a breakdown of a standard G-code program for drilling a pattern of holes. G00: Rapid positioning (moving the tool quickly to a coordinate). G01: Linear interpolation (controlled cutting move)….
In CNC programming, G00 and G01 are the two most fundamental commands.1 They both move the tool to a specific coordinate, but the “how” and “why” behind those movements are completely different. The Quick Comparison Feature G00 (Rapid Positioning) G01 (Linear Interpolation) Purpose To move the tool quickly through “air.” To move the tool while…
Starting out with CNC (Computer Numerical Control) programming can be intimidating. It’s a field where a single decimal point in the wrong place can result in a broken tool or, worse, a “crash” that damages the machine. Here are the top 10 mistakes beginners make and how to avoid them. 1. Incorrect Feed Rates and…
This guide provides a comprehensive breakdown of a CNC program (G-code) designed to mill a 2″ x 2″ x 2″ cube from a slightly oversized aluminum block (e.g., 2.25″ stock). 1. The Strategy: Planning the Cuts Before writing a single line of code, we must define our setup. For this program, we will use a…
CNC (Computer Numerical Control) drilling cycles, commonly known as canned cycles, represent one of the most powerful features in G-code programming for milling machines. These pre-programmed sequences simplify the creation of repetitive hole-making operations, dramatically reducing programming time and code length while improving consistency, safety, and efficiency. Instead of writing dozens or even hundreds of…