CNC Knowledge Learn from the Shop Floor
With 26 years of production experience, our CNC training courses, control unit guides, calculation tools, and practical technical content help you make better decisions in production.

Popular Categories
Explore content created for CNC programming, control units, cutting tools, and technical calculations.
CNC Turning
Turning programming, cycles, toolpaths, dimensioning, and practical examples.
View Content →CNC Milling
Milling techniques, cutting parameters, cycles, and multi-axis machining knowledge.
View Content →Control Units
Operation and troubleshooting guides for Fanuc, Mitsubishi, and other control units.
View Content →Calculation Tools
Spindle speed, feed rate, cutting speed, operation time, and production calculations.
View Tools →Technical Drawing Training
A 12-lesson sequential series, from paper sizes and the title block through to geometrical tolerances. Each lesson covers the rule you need to read a drawing correctly and what that rule means at the machine.
View all lessons →Featured Calculation Tools
Calculate commonly used production values quickly and clearly.
Turning Speed and Feed
Calculate cutting speed, spindle speed, and feed values.
Open Calculator → 02Cutting Tool Profitability Calculator
Compare cost per part by insert price, tool life and cycle time.
Open Calculator → 03Tap Drill Diameter
Find the correct drill diameter for metric and inch threads.
Open Calculator → 04Operation Time
Calculate machining time, cycle time, and output per shift.
Open Calculator → 05Thread Calculator and NC Program
Calculate thread dimensions and generate the NC program.
Open Calculator → 06Reaming Calculator
Calculate reamer diameter, pre-hole size, spindle speed, and feed.
Open Calculator →CNC Simulators
Simulate FANUC lathe cycles in your browser and take the ready NC code to the machine.
G0/G1 Basic Moves
Watch rapid and feed moves step by step, generate NC code.
Open Simulator → 02G71 Rough Turning
Simulate the rough turning cycle and get ready NC code.
Open Simulator → 03G72 Face Roughing
Learn the face roughing cycle visually.
Open Simulator → 04G73 Pattern Repeating
Follow the pattern repeating cycle pass by pass.
Open Simulator → 05G74 Peck Drilling
Simulate the peck drilling cycle with your parameters.
Open Simulator → 06G75 Grooving
Try the grooving cycle with real parameters.
Open Simulator → 07G76 Threading
See the threading cycle pass by pass, get NC code.
Open Simulator → 08G90 Turning Cycle
Simulate OD and ID turning cycles.
Open Simulator → 09G92 Threading Cycle
Watch the thread cutting cycle step by step.
Open Simulator → 10G94 Face Turning
Learn the face turning cycle visually.
Open Simulator → 11G32/G33 Zigzag Threading
Calculate and simulate the zigzag threading method.
Open Simulator → 12FANUC Macro Threading
Generate load-split programs for coarse and trapezoidal threads.
Open Simulator →Why Mentor CNC?
Mentor CNC transforms shop-floor knowledge and experience into clear, understandable, and practical technical content.
Our goal is to help operators, students, engineers, and workshop owners achieve safer, higher-quality, and more efficient production.
Discover Our StoryShop-Floor Knowledge
Practical technical solutions for problems encountered in real production environments.
Control Unit-Specific Explanations
Detailed explanations for Fanuc, Mitsubishi, and other control systems.
Calculation and Simulation Support
Correct parameters, shorter cycle times, and fewer production errors.
Who Is Mentor CNC For?
For anyone who wants to learn, improve their skills, and strengthen their production knowledge in the CNC industry.
Latest Technical Content
Up-to-date content on CNC programming, machining techniques, and production problems.

What Is the G71 Rough Turning Cycle?
Explore the applications and parameters of the G71 cycle, along with practical examples.
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G76 Threading Cycle: Detailed Review
Threading parameters, pass distribution, and important technical considerations.
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G41 and G42 Tool Nose Radius Compensation
Learn how tool nose radius compensation works and how to use it correctly.
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CNC Cutting Tool Guide
Learn the fundamentals of cutting tool selection based on material, operation, and machine conditions.
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Fanuc Alarm Codes and Solutions
Review commonly encountered Fanuc alarm codes and basic troubleshooting methods.
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Fundamentals of Milling and Cutting Parameters
Learn ap, ae, fz, Vc, and other fundamental milling parameters through examples.
Read More →Do you have questions about CNC G-code or calculation tools?
Send us your question. We will do our best to assist you as soon as possible.