CNC vs Laser Cutting — Which Is Right for Your Project?

CNC Routing vs Laser Cutting

Both CNC routing and laser cutting are precision cutting methods, but they excel in different areas. Understanding their strengths will help you choose the right process, and get the best results for your project.

When to Use CNC Routing

CNC routing uses a high-speed rotating cutting tool to remove material. It excels at cutting thick materials (up to 50mm+), machining 3D profiles, and creating pockets, rebates, and chamfers. CNC is the preferred method for HDPE, polypropylene, nylon, UHMWPE, and thick acrylic where a flame-polished edge is not required. It is also ideal for MDF, plywood, and aluminium composite panels.

When to Use Laser Cutting

Laser cutting uses a focused beam of light to melt or vaporise material. It delivers exceptionally fine detail and flame-polished edges on acrylic, making it the best choice for signage, displays, intricate shapes, and decorative work. Laser cutting is also ideal for thin materials, engraving, and applications where edge quality is paramount.

Edge Finish Comparison

Laser cutting produces a polished, glass-like edge on acrylic: often requiring no further finishing. CNC routing leaves a machined edge that may need sanding or polishing depending on the application. For engineering plastics like HDPE and nylon, the CNC edge finish is typically acceptable for industrial use without additional finishing.

Combining Both Methods

Many projects benefit from using both CNC and laser cutting together. For example, a display case might have its structural components CNC-routed from thick acrylic while the decorative front panel is laser-cut for a polished finish. Our team can advise on the best combination for your project.