When choosing CNC machining services, engineers and buyers often ask:
“Should I use 3 axis CNC machining or 5 axis CNC machining?”
The answer depends on part complexity, tolerance, machining cost, and production efficiency. In this guide, we compare 3 axis vs 5 axis CNC machining in terms of price, accuracy, applications, and how to choose the right option for your CNC machined parts.
3 axis CNC machining uses three linear axes (X, Y, Z) to cut material. The cutting tool moves vertically and horizontally, while the workpiece remains fixed.
Lower CNC machining cost
Simple programming and setup
Ideal for flat surfaces and simple geometries
Widely available in CNC machining shops
CNC milling parts
Simple CNC machine parts
Plastic CNC machining (ABS machining, acrylic CNC machining)
3 axis CNC machining is the most cost-effective solution for standard parts.
5 axis CNC machining allows simultaneous movement on five axes, enabling the tool to approach the part from multiple angles in a single setup.
Ability to machine complex geometries
Higher CNC precision machining
Fewer setups and repositioning
Better surface finish
Aerospace components
CNC motorsport and racing parts
Complex CNC metal parts
High-end custom machined parts
5 axis CNC machining is commonly used when accuracy and complexity are critical.
| Factor | 3 Axis CNC Machining | 5 Axis CNC Machining |
|---|---|---|
| Hourly Cost | Lower | Higher |
| Programming Cost | Low | High |
| Setup Time | Short | Long |
| Per-Part Cost (Simple Parts) | Low | High |
| Per-Part Cost (Complex Parts) | High | Lower (fewer setups) |
5 axis CNC machining price is higher per hour, but it can reduce total cost for complex parts by minimizing setups and errors.
3 axis CNC machining: Suitable for standard tolerances
5 axis CNC machining: Better for tight tolerances and complex angles
For CNC precision machining, 5 axis machining often delivers superior consistency.
Parts have simple geometry
Most features are on one or two faces
Cost sensitivity is high
High-volume production is required
Parts have complex contours
Multiple angled features are required
High precision is critical
Surface finish matters
Both processes support a wide range of CNC materials:
Aluminum CNC machining
Steel CNC machining
Stainless steel CNC machining
CNC aluminium alloys
Machined plastic and CNC polycarbonate
However, 5 axis CNC machining is often preferred for hard-to-machine materials due to better tool access.
5 axis CNC machining is worth the higher CNC machining cost when:
Part complexity would require multiple 3 axis setups
Tolerance stacking is a concern
Reduced lead time is critical
Part quality impacts performance or safety
For simple parts, 3 axis CNC machining remains the most economical choice.
Use 3 axis machining whenever geometry allows
Avoid unnecessary 5 axis machining
Optimize part design for fewer setups
Work with CNC machining manufacturers offering DFM support
These steps help reduce overall CNC machining price.
Per hour, yes—but total cost may be lower for complex parts.
Yes, for simple geometries and standard tolerances.
Both work well, but 3 axis machining is usually more cost-effective.
Yes. Many China CNC machining manufacturers offer advanced 5 axis CNC machining services.
The choice between 3 axis vs 5 axis CNC machining depends on part complexity, tolerance, and budget.
3 axis CNC machining offers low cost and simplicity, while 5 axis CNC machining delivers superior accuracy and efficiency for complex parts.
Choosing the right process helps control China CNC machining cost while ensuring part quality.
Hey there, I'm Ming!
From MQJM, I'm a CNC machining expert with over 20 years of experience. We provide high-quality and high-precision machining services in China. Ask for a quote for your ongoing or upcoming projects now!
Best Regards, Ming, Co-Founder
