Learn G-Code Programming Online: Free Course with AI Tutor & Certificate
This free G-Code programming course teaches you how to write and debug scripts for CNC machines in about 2 hours. Across 13 modules, you'll master syntax, macros, and multi-axis machining. By the end, you'll be ready to optimize manufacturing processes and build complex parts with precision.
What you'll learn in this G-Code Programming course
Five concrete outcomes you'll walk away with, each mapped to modules in the curriculum below.
Write and debug G-Code programs for various CNC machines, including milling, turning, and 3D printing.
Apply advanced G-Code techniques such as subprograms, macros, and conditional statements to optimize machining processes.
Utilize software tools like CAM software and G-Code simulators to enhance programming efficiency and accuracy.
Implement industry standards and best practices in G-Code programming to ensure quality control and compliance.
Design and execute hands-on G-Code projects, customizing code for specific tasks and collaborating on complex machining operations.
G-Code Programming course syllabus
01 Introduction to G-Code
- What is G-Code?
- History and Evolution of G-Code
- Basic Structure of G-Code
02 Understanding CNC Machines
- Safety Precautions in CNC Programming
03 G-Code Syntax and Structure
- G-Code Commands Overview
- Coordinate Systems in G-Code
04 Understanding G and M Codes
- Commonly Used G-Codes
- Commonly Used M-Codes
05 Basic G-Code Programming
- Writing Your First G-Code Program
- Linear and Circular Interpolation
- Tool Selection and Tool Change Commands
- Spindle Control Commands
- Feed Rate and Speed Control
06 Advanced G-Code Techniques
- Subprograms and Macros
- Using Variables in G-Code
- Conditional Statements in G-Code
- Loops and Repetitions
- Error Handling in G-Code
07 Practical Applications of G-Code
- Milling Operations with G-Code
- Turning Operations with G-Code
- Drilling Operations with G-Code
- 3D Printing with G-Code
- Laser Cutting with G-Code
08 G-Code for Different CNC Machines
- G-Code for Milling Machines
- G-Code for Lathes
- G-Code for 3D Printers
- G-Code for Laser Cutters
- G-Code for Plasma Cutters
09 Troubleshooting G-Code Programs
- Common Errors in G-Code
- Debugging Techniques
- Simulation and Testing
- Optimizing G-Code for Performance
- Case Studies of G-Code Errors
10 Software Tools for G-Code Programming
- Introduction to CAM Software
- Using G-Code Simulators
- G-Code Editors and Viewers
- Integrating CAD with G-Code
- Open Source Tools for G-Code
11 Industry Standards and Best Practices
- ISO Standards for G-Code
- Best Practices in G-Code Programming
- Documentation and Annotation of G-Code
- Quality Control in CNC Programming
12 Future Trends in G-Code
- Future Trends in G-Code
13 Hands-On G-Code Projects
- Creating a Simple Part with G-Code
- Designing a Complex Part with G-Code
- G-Code for Multi-Axis Machining
- Customizing G-Code for Specific Tasks
- Collaborative G-Code Projects
Real-world projects you'll work on
Practice the exact kind of work G-Code Programming professionals do on the job.
Tesla's Precision: Crafting a Model S Component with G-Code
SpaceX's Mars Mission: Designing a Rocket Part Using Advanced G-Code Techniques
Apple's Innovation: Creating a Custom iPhone Case with Multi-Axis Machining
Google's Green Initiative: Developing a Solar Panel Mount with Optimized G-Code
Skills you'll gain
Add these to your LinkedIn profile and resume the day you finish.
Who should take this G-Code Programming course?
And exactly what you need before starting (spoiler: almost nothing).
This course is for
- Mechanical engineering students wanting to learn CNC G-Code for manufacturing roles.
- Machinists and factory operators looking to upgrade their skills with formal G-Code training.
- Hobbyists who want to learn G-Code for 3D printing and custom fabrication.
- Career switchers aiming for technical roles in India's growing manufacturing sector.
Prerequisites
- No prior CNC programming experience is required to start this course.
- Basic understanding of geometry and coordinate systems is helpful.
- Access to a computer to run free G-Code simulators.
How learning works on LearnTube
The structure of a bootcamp, the price of free.
AI curates your path
Our AI picks the top 1% of video content for each topic and arranges it into a structured, goal-based curriculum. No more tutorial roulette.
Learn, then get quizzed
After every lesson, your AI tutor asks you a question and gives personalised feedback on your answer, so gaps get fixed immediately.
Finish with proof
Complete the course, build the capstone project, and claim a certificate recognised by 900+ hiring partners.
A complete G-Code Programming course: free, structured and job-focused
You'll start by writing instructions that tell CNC machines exactly how to move, cut, and shape materials. This free training covers G-Code programming basics, taking you from a beginner to someone who can confidently control milling, turning, and 3D printing equipment. The curriculum begins with a simple question (What is G-Code?) before advancing through 13 structured modules. You will explore G-Code Syntax and Structure, Basic G-Code Programming, and Advanced G-Code Techniques like subprograms and macros. We also cover Troubleshooting G-Code Programs and Industry Standards and Best Practices so your code remains efficient and error-free.
LearnTube makes mastering these technical concepts highly interactive. Our platform curates the best YouTube video lessons and pairs them with an AI tutor that tests your knowledge. You will take a quick quiz after every lesson to ensure you actually understand the material. It's a completely free way to learn CNC G-Code, and you can add a paid certificate when you finish to prove your new skills to employers.
To build real confidence, you'll complete four hands-on projects based on real-world manufacturing challenges. You'll tackle Tesla's Precision by crafting a Model S component, design a rocket part for SpaceX's Mars Mission, create a custom iPhone case with multi-axis machining for Apple's Innovation, and develop a solar panel mount for Google's Green Initiative. By the end of this 2-hour online G-Code programming course, you'll know how to use CAM software and simulators to execute complex machining operations safely.
Jobs you can target after learning G-Code Programming
G-Code Programming is a gateway skill for some of the fastest-growing roles in tech.
Writes and optimizes code to automate machine tools for manufacturing.
Designs and improves production processes using advanced machining techniques.
Sets up and runs computer-controlled machines using prepared G-Code scripts.
Typical entry-level salary ranges in India as of September 2026. Actual compensation varies by city, company and experience.
Earn a G-Code Programming certificate employers recognise
Finish the course and claim a certificate you can share anywhere.
- Learn 100% free: every lesson, quiz and the AI tutor cost nothing
- Claim your certificate when you complete the course (an optional paid add-on)
- Recognised by 900+ hiring partners across India
- One click to share on LinkedIn and add to your resume
Why learners choose LearnTube
Real reviews from Google. You learn free, you get assessed free, and you pay only if you want the certificate.
Though I have 11 years of experience as an HRBP, the course helped me refresh my knowledge and gave me insights into new trends in the market. The modules were clear and easy to understand, and the quizzes were well designed. I have added the certificate to my LinkedIn profile.
I had a lot of doubts while learning, but the AI chatbot answered them in detail with simple summaries. The videos on the platform saved me a lot of time as I didn't have to search YouTube and watch random content.
Just earned my certificate in HR Management from LearnTube.ai! The platform is user-friendly and the assessment was a great way to validate my knowledge. Feeling proud of this accomplishment!
I enrolled in a LearnTube personalized course to get into a Data Analytics role. It helped me learn SQL in depth and gave me hands-on experience with Power BI. I attached the LearnTube certificate to my CV, it added credibility to my profile, and I'm currently in the interview process.
The interface is user-friendly and intuitive, making it easy to navigate the course. I encountered no errors during my time using the platform, which was a refreshing change from other online learning platforms.
Just cleared the Business Analyst assessment and got certified! Loved how the course simplifies big concepts like data-driven decision making into short, practical lessons. The automated quizzes kept me on track the whole time. Perfect boost for my resume!
The certificate gave me a real edge during my B.Tech. By the time I graduated, I had skills that set me apart from my peers, and the certification opened up more job opportunities. It gave me the confidence to stand out during interviews.
I manage many software projects as a General Manager and was looking for a good certification program to stay competitive. After researching many programs, I chose LearnTube and it was much better than I expected. The material is well-organized and practical, and what I liked most is the lifetime access.
Frequently asked questions
Everything learners ask before starting this G-Code Programming course.
How long does this G-Code programming course take to finish?
You can complete the entire curriculum in about 2 hours. The 48 video lessons are concise, allowing you to learn G-Code programming basics quickly and apply them immediately to your own manufacturing projects.
Is this self-paced or are there scheduled class times?
Yes, it is entirely self-paced. You can watch the curated video lessons and take the AI quizzes whenever you want. The platform works perfectly on mobile devices, letting you learn CNC G-Code anywhere.
What kind of projects will I build during the training?
You will complete four practical assignments, including crafting a Tesla-style car component and designing a SpaceX rocket part. These projects give you hands-on experience writing scripts for multi-axis machining and 3D printing tasks.
Do I need to buy expensive software to learn G-Code?
No, you do not need paid software. The course explains how to utilize free CAM software and G-Code simulators. This lets you practice writing and debugging your scripts without spending money on industrial tools.
What jobs can I get after taking these G-Code classes?
This training prepares you for roles like CNC Programmer, Manufacturing Engineer, and CNC Machine Operator. Entry-level salaries in India for these technical manufacturing positions typically range from ₹2 LPA to ₹7 LPA.
Do I get a G-Code certification when I finish?
You can purchase an optional certificate after passing the final module. The learning materials and AI quizzes are completely free, but the paid certificate gives you a formal credential to share with potential employers.
Learners also explore these free courses
Pair G-Code Programming with a complementary skill to stand out even more.
Start learning G-Code Programming today, for free
48 lessons, an AI tutor that never gets tired, and a certificate at the finish line. All you need is an hour a day.
Start Learning Free