CNC machining technology is always changing and improving. If you work in manufacturing or machining, you’ve probably heard about 5-axis computer numerical control (CNC) machines. Like all CNCs, a 5-axis machine moves a spindle along a programmed path to perform manufacturing processes like cutting, routing, or drilling. However, they have significantly more versatility and speed than a 3-axis machine. Learn about 5-axis CNC machining, the benefits, and why a 5-axis machine may fit your needs in this guide from Laguna Tools.
What Is A 5-Axis CNC Machine?
A 5-axis CNC machine moves in five different directions: X, Y, Z simultaneously with A and B. X, Y, and Z are linear axes, while A and B are rotational axes. This type of CNC machine allows an operator to work from all different directions without having to manually reposition the part or the machine tools.
The Difference Between 3- And 5-Axis CNC Machining
Most machinists are familiar with a manual, 3-axis vertical milling machine. The three linear axes dictate how the parts of the machine move:
- X-axis: The operator can move the worktable to the left or right.
- Y-axis: The table can move forward or backward.
- Z-axis: The operator can move the head of the cutting tool up or down to adjust the depth of the cut.
A 3-axis CNC router uses the same movements along those three axes. However, instead of manually adjusting the machine, a CNC router is programmed using computer-assisted design or manufacturing (CAD/CAM) software. The software directs the machine to follow a tool path according to specific coordinates, moving along the X, Y, and Z axes simultaneously. CNC routers are popular in the woodworking industry, where they’re used to make three-dimensional signage, cabinets, furniture, and more.
In addition to moving along the X, Y, and Z axes, a 5-axis machine also has two rotary axes, known as the A-axis and B-axis. All five axes can engage at the same time to perform complex cutting movements. Instead of a fixed tool head, the 4th and 5th axis means the cutting tool can approach a workpiece from any direction. With a single setup, an operator can machine multiple sides of a part. Note that some machines also have a C-axis that provides rotation around the Z-axis.
These specialty machines with five axes have the freedom of motion to produce very complex shapes. For example, if you wanted to create a partial cavity or an overhang, you would need to reset the part midway through the process on a standard 3-axis horizontal machining center. With the 5-axis CNC, you simply program in the instructions and you don’t have to reposition the material or the tool. The result is shorter setup times, the ability to produce more complicated parts, and easier repeatability.
3-Axis vs 5-Axis CNC Machining
| Feature | 3-Axis CNC Machining | 5-Axis CNC Machining |
|---|---|---|
| Movement | X, Y, and Z axes | X, Y, Z plus two rotary axes |
| Part Access | Limited to surfaces accessible from one direction | Can access multiple sides and angles in a single setup |
| Number of Setups | Often requires multiple setups and repositioning | Frequently completed in one setup |
| Complex Geometries | Best for simple to moderately complex parts | Ideal for intricate, multi-sided, and contoured parts |
| Production Efficiency | More manual intervention required | Faster machining with reduced handling |
| Accuracy & Consistency | Good accuracy, but repositioning can introduce errors | Higher accuracy by reducing part movement |
| Surface Finish | May require additional finishing operations | Often produces smoother finishes directly from the machine |
| Ideal Applications | Cabinets, signs, fixtures, and basic production parts | Aerospace, automotive, molds, prototypes, custom woodworking, and advanced manufacturing |
How Does 5-Axis CNC Machining Work?
5-axis CNC machining begins with a digital design created in Computer-Aided Design (CAD) software. Once the part is designed, Computer-Aided Manufacturing (CAM) software converts that design into toolpaths that tell the machine exactly how to move and cut the material.
Unlike traditional 3-axis machines that only move along the X, Y, and Z directions, a 5-axis CNC machine adds two rotary axes. These additional axes allow either the cutting tool, the workpiece, or both to tilt and rotate during machining.
As the machine operates, the controller coordinates movement across all five axes simultaneously. This enables the cutting tool to approach the material from multiple angles without requiring the operator to stop and reposition the part. The result is a more efficient machining process that can produce complex shapes, angled features, curved surfaces, and detailed contours with greater precision.
Because multiple sides of a part can often be machined in a single setup, 5-axis CNC machining helps reduce setup time, improve accuracy, and increase overall productivity.
What Is A 5-Axis CNC Machine Used For?
You’ll find 5-axis CNC machinery used in all kinds of industrial and commercial settings. A few common applications for 5-axis machines include:
- Healthcare: Because 5-axis CNCs provide a high degree of accuracy, they’re ideal for manufacturing delicate medical equipment, devices, and implants.
- Aerospace: The aviation and aerospace industries need precisely milled parts with smooth, contoured edges.
- Automotive: 5-axis CNCs can be used to efficiently produce complex parts like gearboxes, drive axles, and more.
- Custom furniture
5-axis machines are also useful in energy industries, where they can produce parts for turbines, oil and gas facilities, and more.
Types of 5-Axis Machines
CNC machines can achieve their 5-axis capability in one of two ways. Some swivel the tool head, while others move the table and the material. Both types of machines offer high precision and versatility.
With a swivel-head machine, the tool head maneuvers around a fixed block of material, using different angles to cut or grind into tight spaces. Because the material remains stationary throughout the machining process, you can use a swivel-head machine to cut material of all different sizes. You’ll often see this method of 5-axis machining referred to as 3+2-axis routing.
Other CNC routers can adjust the material on the worktable to provide the additional two axes of movement. Usually, they rotate the workpiece around the X and Y axes. This provides speed and stability throughout the operation: the machine makes continuous adjustments to the cutting tool on all five axes. This method is usually described as continuous or simultaneous 5-axis CNC machining. To see a rotating axis in action, check out this YouTube video from Laguna Tools that shows a custom Smart Shop III creating the stock of a Mossberg rifle.
Main Parts of a 5-Axis CNC Machine
Understanding the major components of a 5-axis CNC machine helps explain how these systems achieve their flexibility and precision.
Spindle
The spindle is the motor-driven component that rotates the cutting tool. It provides the speed and power needed to remove material efficiently. Spindle performance directly affects cutting quality, productivity, and surface finish.
Cutting Tool
The cutting tool is the component that physically removes material from the workpiece. Different tool shapes and sizes are used depending on the material and the type of cuts being performed. The right tool selection is critical for accuracy and machining efficiency.
Worktable
The worktable holds and secures the material during machining. On many 5-axis machines, the table can rotate or tilt, allowing the workpiece to be positioned at different angles for improved access and cutting flexibility.
Rotary Axes
The two additional rotary axes are what separate a 5-axis machine from a standard 3-axis machine. These axes allow the table, spindle, or both to rotate during machining, enabling the tool to reach complex surfaces and multiple sides of a part without repositioning.
Machine Controller
The controller acts as the machine's command center. It interprets the machining program generated by CAM software and coordinates movement across all five axes. Precise controller operation is essential for maintaining accuracy and repeatability.
CAM Software
CAM software converts CAD designs into machine instructions and toolpaths. It determines how the cutting tool moves, the order of operations, cutting speeds, and other machining parameters. Modern CAM software makes programming 5-axis machining significantly more accessible than many people expect.
What Makes 5-Axis CNC Machining Better?
There are many benefits to using a 5-axis CNC machine, such as:
- Efficiency: 5-axis machines speed up production timelines, making workshops more efficient. Automation reduces labor costs, which are a major expense for many shops.
- Improved accuracy: The precise placement of the cutting tool results in more accurate parts with a better surface finish and smoother edges.
- Fewer tool changes: With continuous milling operations, 5-axis machines can produce more complex geometries without having to change out tools. This also reduces opportunities for manual errors that may occur during repositioning.
- Versatility: With more machining capabilities, a 5-axis CNC can produce a wide variety of high-quality finished parts.
- More rigidity: 5-axis machines use standard-length tools with continuous cutting, resulting in longer tool life and higher feed rates.
As 5-axis technology continues to develop, these CNCs are increasingly easier to learn and operate.
The Potential Challenges of 5-Axis CNC Machining
The speed of continuous 5-axis machining is a major benefit for business owners, but it can also be a challenge. Once instructions are programmed in, there’s no need to stop cutting to reposition the workpiece. If the programmer isn’t experienced and careful, you risk wasting money on raw materials that are cut or placed incorrectly. And learning how to program a high-speed 5-axis machine certainly takes time and effort, so you’ll need to factor in the labor cost of operator training.
How Much Is A 5-Axis CNC Machine?
Prices for 5-axis machining centers can vary widely and are generally between $200K and $500K, with a Laguna 5 Axis starting at $199,500. Some of the factors that can affect the price of a 5-axis machine include:
- Machine size and weight
- Maximum speed
- Motor size and power
- Optional settings and features
- Manufacturing location
Setting Up a 5-Axis Machine
You’ll need a knowledgeable machinist to set up and program your 5-axis CNC. Note that Laguna Tools offers training over Zoom upon request as part of our CNC education resources. As with any CNC machine, ensure you are using the proper safety practices in your shop, including:
- Always wearing the proper personal protective equipment (PPE)
- Testing all tools before using them for the first time
- Cleaning and inspecting machines regularly
- Training and retraining staff regularly on shop safety
How to Get Started With 5-Axis CNC Machining
If you’re considering adding 5-axis CNC machining to your business, here are a few recommendations:
Consider Your Needs
Not sure if you should opt for a 3+2 router or a continuous 5-axis machine? Think through the type of projects you do. In general, 5-axis CNCs are a better fit for complex, contour surface machining. 3+2 machining is mainly used for plane processing. If you need tighter tolerances and want to produce more complex final products, continuous 5-axis machining is probably better. You should also consider what kinds of additional features and software integrations you want.
Research Your Options
Next, look at dealers in your area and price out your options. You’ll need to decide if it’s more cost-effective to buy a standard machine or pay extra for a custom design that suits your shop’s needs. And because 5-axis models are more expensive than 3-axis CNC machines, many businesses opt for CNC financing to pay off the machine over time.
Plan for Maintenance
While 5-axis machines save money on labor costs, they do require regular maintenance. You’ll need to budget for upkeep expenses to ensure the machine runs smoothly. You’ll also need to account for the additional training you or your staff will need to learn how to operate a 5-axis machine.
Common Myths About 5-Axis CNC Machining
Despite its growing popularity, several misconceptions still prevent some shops from exploring 5-axis machining.
Myth: 5-Axis Machines Are Only for Large Manufacturers
Reality: While large manufacturers have used 5-axis technology for years, modern machines are increasingly accessible to small and mid-sized shops. Many businesses use 5-axis machining to improve efficiency, reduce labor, and expand their production capabilities without dramatically increasing staff.
Myth: 5-Axis Programming Is Too Difficult
Reality: Today's CAM software automates much of the programming process. Modern software tools simplify toolpath creation and simulation, making 5-axis machining far more approachable than it was in the past. With proper training, many operators can successfully transition from 3-axis machining.
Myth: 5-Axis Machines Are Always Too Expensive
Reality: Although the initial investment is typically higher than a 3-axis machine, many shops recover costs through shorter cycle times, fewer setups, reduced labor, and improved part quality. For many applications, the long-term productivity gains can outweigh the upfront expense.
Myth: 5-Axis Machines Are Only Useful for Aerospace Parts
Reality: Aerospace is one of many industries that benefit from 5-axis machining, but it is far from the only one. Woodworking, cabinetry, mold making, furniture manufacturing, automotive production, sign making, and custom fabrication shops all use 5-axis technology to create more complex parts with greater efficiency.
Myth: A 5-Axis Machine Is Only Needed for Complex Parts
Reality: Even relatively simple parts can benefit from 5-axis machining. By reducing setups and minimizing manual repositioning, shops can improve workflow, increase consistency, and complete jobs faster regardless of part complexity.
The reality is that 5-axis CNC machining is often less about making impossible parts and more about producing parts more efficiently, accurately, and consistently. For many shops, the ability to reduce setup time and expand production capabilities is one of the biggest advantages of investing in a 5-axis CNC machine.
Find the Right 5-Axis CNC Machine With Laguna Tools
If you’re considering a 5-axis CNC for your machine shop, Laguna Tools is here to help. Founded in 1983, Laguna Tools serves professional machinists and CNC operators across the woodworking, automotive, aerospace, and 3D printing industries. Providing scalability, quality, and error-free work, Laguna Tools machinery helps you eliminate manual tasks and shorten lead times.
We are proud to offer a wide range of CNC solutions, from our multi-tool series to the Laguna Tools SmartShop 5-axis CNC. For more information about 5-axis CNC machining or to speak with a specialist, contact us today today or view our products
