How to Become a CNC Machinist: Step-by-Step Guide
The manufacturing industry relies heavily on Computer Numerical Control (CNC) machining, a process that uses pre-programmed computer software to control the movement of factory tools and machinery. CNC machinists play a crucial role in producing precision parts for industries like aerospace, automotive, and medical equipment. If you're interested in pursuing a career as a CNC machinist, this guide will walk you through the necessary steps, skills, and training required to succeed in this field.
What Does a CNC Machinist Do?
A CNC machinist operates and maintains CNC machines, which cut, shape, and finish metal or plastic parts with high precision. Their responsibilities include: - Reading and interpreting technical blueprints
- Setting up and calibrating CNC machines
- Loading raw materials into the machine
- Monitoring operations to ensure accuracy
- Performing quality checks using precision measuring tools
- Troubleshooting and performing basic machine maintenance
CNC machinists must have strong attention to detail, mechanical aptitude, and problem-solving skills to ensure parts meet exact specifications.
Steps to Becoming a CNC Machinist
1. Obtain a High School Diploma or Equivalent
A high school diploma or GED is typically the minimum requirement for entering this field. Courses in mathematics (especially geometry and algebra), computer science, and mechanical drafting provide a strong foundation.
2. Complete CNC Machining Training
While some machinists learn through on-the-job training, completing a formal education program significantly improves job prospects. Options include:
- Vocational or Technical Schools – Many schools offer CNC machining certificates or diplomas, covering topics like machine operation, blueprint reading, and CNC programming.
- Community College Programs – Associate degrees in machining technology provide in-depth training in CNC operations, CAD/CAM software, and metallurgy.
- Apprenticeships – Some employers and unions offer apprenticeships combining paid work experience with classroom instruction.
For those in Perth, Australia, institutions like TAFE WA and private technical colleges offer specialized CNC machining courses to help aspiring machinists gain hands-on experience.
3. Gain Hands-On Experience
Entry-level positions, such as a CNC operator or machine tender, allow beginners to develop practical skills under supervision. Over time, operators can advance to become CNC machinists by mastering machine setups, tooling adjustments, and programming.
4. Learn CNC Programming
Modern CNC machining relies on programming languages like G-code and M-code. Machinists should understand how to:
- Write and edit CNC programs
- Use CAD/CAM software (e.g., Fusion 360, Mastercam)
- Optimize toolpaths for efficiency
Many employers prefer candidates with programming knowledge, as it reduces reliance on engineers for minor adjustments.
5. Earn Industry Certifications (Optional but Recommended)
Certifications validate skills and improve employability. Some recognized credentials include:
- NIMS (National Institute for Metalworking Skills) CNC Certification
- AWS (American Welding Society) Certifications (if working with welded components)
- Machine Tool Technology Certifications from technical schools
6. Stay Updated with Industry Trends
CNC technology evolves rapidly, with advancements in automation, multi-axis machining, and additive manufacturing. Continuous learning through:
- Online courses (e.g., Udemy, Coursera)
- Manufacturer-specific training (e.g., Haas, Fanuc)
- Industry workshops and trade shows
Job Outlook and Salary Expectations
The demand for skilled CNC machinists remains strong, especially in high-tech manufacturing hubs. According to the U.S. Bureau of Labor Statistics (BLS), machinists earn an **average annual salary of 47,730∗∗,withexperiencedprofessionalsmakingover60,000.
In Perth, Australia, CNC machining opportunities are growing in industries like mining equipment manufacturing, aerospace, and automotive. Companies specializing in CNC machining in Perth often seek certified machinists with experience in precision part production.
Key Skills for Success
To excel as a CNC machinist, develop the following skills:
✔ Technical Proficiency – Mastery of CNC machines, tools, and software
✔ Precision and Attention to Detail – Ensuring tolerances within thousandths of an inch
✔ Problem-Solving – Diagnosing and fixing machining errors
✔ Mechanical Aptitude – Understanding how machines and tools function
✔ Time Management – Meeting production deadlines efficiently
Becoming a CNC machinist requires a mix of education, hands-on training, and continuous skill development. With the right training and experience, you can build a rewarding career in this high-demand field. Whether you're in the U.S., Perth, or elsewhere, opportunities in CNC machining are plentiful for those willing to master the craft.
If you're looking for CNC machining services in Perth, many local workshops offer precision machining for custom parts, prototyping, and large-scale production. Start your journey today by enrolling in a machining program or seeking an apprenticeship to gain real-world experience! 
