The CNC (computer numerical control) system of a machine tool includes the control unit itself, as well as the motion-control system such as the servomotors, drives and axis positioning devices. These components are part of any CNC machine tool, but they might be bought separately and retrofitted later on older machines that are upgraded or refurbished. Also part of the control system are sensors that may allow the control to make certain real-time decisions during unattended or lightly attended machining processes. These can include probes for measuring the position of the part or machined features, as well as monitoring systems for detecting the presence of the tool or the force that is being exerted in the cut.
Understanding G27, G28, G29 and G30
Take a closer look at these reference position commands.
CNC & Machine Controls : Essential Reading
Understanding CNC Machine Accuracy and Repeatability
Properly evaluating machine tool capability requires understanding how the both user and the builder can influence precision.
CNC Simulation Software Uses Data for Smarter Manufacturing
The latest version of CNC simulation software incorporates enhancements and new features focusing on using data for smarter, more informed manufacturing.
When to Use Custom Macros With a CAM System
Custom macros can offer benefits even when using a CAM system to prepare programs – but must be implemented with the right considerations.
6 Steps to Take Before Creating a CNC Program
Any time saved by skipping preparation for programming can be easily lost when the program makes it to the machine. Follow these steps to ensure success.
Shopfloor Software Simplifies On-Control Programming
ModuleWorks offers its Next Generation Shopfloor Programming, designed to enable machine tool operators to build, simulate and run NC programs without G-code expertise.
FAQ: CNC & Machine Controls
What does CNC stand for?
Computer Numerical Control.
Source: CNC Intro-The Key Concepts Of Computer Numerical Control
What is CNC?
Computer numerical control (CNC) is the control of machining tools through automation or computer programming. A CNC machine follows coded instructions such as G-code and M-code. These instructions are typically written by a person or by CAD/CAM software. This allows for a highly automated process that can be more efficient than manual machining, providing users with better productivity, speed and accuracy. The most basic function of any CNC machine is automatic, precise, and consistent motion control. All forms of CNC equipment have two or more directions of motion, called axes. These axes can be precisely and automatically positioned along their lengths of travel. The two most common axis types are linear (driven along a straight path) and rotary (driven along a circular path).
How much does a CNC machinist make?
According to the Bureau of Labor Statistics (BLS), the mean annual wage of a CNC tool operator is $44,300 as of May 2020. The median wage is $42,260.
Further reading: New Apprenticeship Program At Hurco North America
5 Ways to Simplify Tasks for CNC Newcomers
Physics-Based Online Training in CNC Machining Available for Free Through DoD Initiative
What should new CNC machinists know?
1. Shop safety
First and foremost, newcomers to manufacturing must understand that the shop floor is a dangerous place. You must convey general concerns in two areas: safety equipment that workers use and safety practices to which they must adhere.
2. Shop math
The arithmetic that a typical CNC operator must be able to perform is simple. However, you must ensure that newcomers can use a calculator to add, subtract, multiply and divide.
3. Blueprint reading
Anyone working with CNC machines must be able to interpret a 3D workpiece from a series of 2D views on an engineering drawing. This involves understanding line types (visible, hidden, center, section, etc.) and orthographic projection.
4. Tolerance interpretation
Newcomers must understand that every workpiece attribute has an amount of allowable error, whether it be specified or implied.
5. Measuring devices
Explain the two basic types: fixed and variable gages. Go into detail for any fixed gages your CNC operators use, including go/no-go gages and gages that incorporate a dial indicator.
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HTML-Based HMI Puts Users in Charge of Machine Customization
By building a human-machine interface using more accessible HTML instead of a custom API, users will be able to more easily customize their machine controls, making them easier to use, more secure and ready for Industry 4.0.
5 G-Code Tips for Increasing CNC Efficiency
Optimizing G code is a low-cost way to improve CNC efficiency without sacrificing usability and safety.
#Basics #cnctechtalk
Understanding G27, G28, G29 and G30
Take a closer look at these reference position commands.
#cnctechtalk #Basics
Understanding CNC Machine Accuracy and Repeatability
Properly evaluating machine tool capability requires understanding how the both user and the builder can influence precision.
#cnctechtalk #Basics
CNC Simulation Software Uses Data for Smarter Manufacturing
The latest version of CNC simulation software incorporates enhancements and new features focusing on using data for smarter, more informed manufacturing.
When to Use Custom Macros With a CAM System
Custom macros can offer benefits even when using a CAM system to prepare programs – but must be implemented with the right considerations.
#cnctechtalk #Basics
6 Steps to Take Before Creating a CNC Program
Any time saved by skipping preparation for programming can be easily lost when the program makes it to the machine. Follow these steps to ensure success.
#Basics #cnctechtalk
