CNC Controller vs PLC: 7 Key Differences That Matter

cnc controller vs plc industrial systems side by side in modern factory environment showing automation hardware comparison

CNC Controller vs PLC: What’s the Difference? Author: Radonix R&D Team In industrial automation, both CNC controllers and PLCs (Programmable Logic Controllers) play critical roles. While they may appear similar at a high level, they are fundamentally designed for different purposes. Understanding the difference between these two systems is essential when designing or upgrading machines, […]

Stepper vs Servo Motors: 7 Key Differences in CNC Performance

stepper vs servo motors in CNC system showing industrial servo motor and compact stepper motor in machining environment

Stepper vs Servo Motors in CNC Systems Author: Radonix R&D Team In CNC systems, the choice of motor directly affects precision, speed, efficiency, and overall machine performance. The two most common options are stepper motors and servo motors. While both are used to drive CNC machine axes, they differ significantly in terms of control method, […]

Servo Motor in CNC Machines: Selection, Sizing and Performance Guide

servo motor in cnc

Author: Nima Rad – Radonix Automation Short answer: A servo motor in CNC machine is an electric motor with a feedback device (encoder or resolver) driven by a servo drive in a closed loop. The loop continuously corrects torque, speed and position, which gives CNC axes high accuracy, fast response and stable torque across a […]

Interpolation in CNC: Linear, Circular, and Multi-Axis Motion

Interpolation in CNC showing linear rails with circular and multi-axis motion path overlay in industrial workshop

What Is Interpolation in CNC? Linear, Circular, and Multi-Axis Motion Written by: Radonix R & D Team. In CNC machining, precision is not defined only by motor torque, spindle power, or machine rigidity. True machining accuracy depends on how precisely the machine moves from one programmed position to another. That coordinated movement is controlled through […]

CNC Control in Woodworking: Speed, Motion Stability, and Surface Precision

High-speed CNC router demonstrating CNC control in woodworking on MDF panel with smooth gantry motion.

CNC control in woodworking: what high-speed production demands from the controller Author: Radonix R&D Team. Woodworking is one of the most widespread CNC applications, ranging from furniture production and cabinetry to decorative panels and nesting operations. While wood is relatively easy to cut compared to metal or stone, CNC control in woodworking presents its own […]

Servo Tuning for CNC: A Practical Engineering Guide

Servo tuning interface showing CNC axis position and velocity response graphs for precise industrial motion control

Servo Tuning in CNC Motion Control Written by: Nima Rad – Radonix Automation Company A servo drive or motor is considered properly tuned when it follows position and velocity commands quickly and accurately, without vibration, excessive noise, abnormal temperature rise, or exceeding allowable Following Error limits. In industrial CNC systems, tuning is fundamentally about stabilizing […]

Pulse Direction vs EtherCAT: 2 Proven CNC Motion Architectures

Pulse Direction vs EtherCAT motion control on an industrial CNC machine interface during automated cutting operations.

Pulse Direction vs EtherCAT (Network-Based Motion) in CNC Control Written by: Radonix R & D Team. When discussing CNC motion control, two terms are often mentioned: Pulse/Direction and EtherCAT. These are not competing “good vs bad” technologies. They are different motion command architectures, each designed for different machine requirements and system complexities. At Radonix, it […]

CNC Motion Control in the Future: Modular, Open, and AI-Driven Controllers

CNC motion control system showing linear axis, actuator, and control wiring inside an industrial machine cabinet

CNC Motion Control Is Changing: What OEMs Need to Plan For Written by: Radonix R & D Team CNC controller technology is entering a new phase. Traditional closed, monolithic systems are gradually giving way to modular, open, and software-centric architectures that better align with Industry 4.0 requirements. This evolution is driven by the need for […]

EtherCAT CNC: The Future of Intelligent CNC Control with AI

Radonix EtherCAT CNC control cabinet showing RJ45 Ethernet cables connecting industrial servo drives & controller

Combining AI and EtherCAT: The Future of Intelligent CNC Control Written by: Radonix R&D Team Modern manufacturing no longer evaluates CNC systems on precision alone. Production environments now demand deterministic performance, architectural scalability, long-term reliability, and readiness for future technologies. At the center of this evolution is EtherCAT, a real-time industrial Ethernet protocol specifically designed […]

Servo Gain Explained: How Gain Works in CNC Servo Loops

Servo gain

Written by: Mehdi Hassanzadeh, Content Specialist – Radonix Short answer: Servo gain is the factor a servo loop uses to turn the error between command and feedback into a corrective output. Higher gain makes an axis stiffer and faster to respond, but pushing it beyond the stability margin causes vibration, noise, overshoot and overheating. The […]