CNC Milling

High-Precision Prototyping & Production

CNC (Computer Numerical Control) milling is a precision machining process that uses a rotating cutting tool to remove material from a workpiece based on a computer-programmed design. This technique allows for highly accurate, repeatable, and complex part production, making it ideal for prototyping, low-volume production, and custom components across industries such as aerospace, automotive, medical, and manufacturing.

Why Choose CNC Milling?

    • Produces parts with tight tolerances within a few thousandths of an inch.

    • Ensures high repeatability, maintaining consistency across multiple parts.

    • Once programmed, CNC milling enables fast, automated production.

    • Reduces human error, allowing for efficient, consistent machining.

    • Works with a wide range of materials, including metals, plastics, and composites.

    • Allows for complex geometries that traditional machining cannot achieve.

    • Enables low-volume production for custom and specialized components.

    • Supports functional prototypes that closely resemble final production parts.

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How CNC Milling Works

  • Design

    The process begins with a digital 3D model created in CAD (Computer-Aided Design) software. This design is then converted into G-code, which serves as the machine's instructions.

  • Setup

    The workpiece, whether metal, plastic, or composite, is clamped securely onto the milling table. The appropriate cutting tool is inserted into the spindle.

  • Machining

    The CNC mill follows the G-code instructions, precisely controlling tool movement, feed rate, and cutting speed to remove material and shape the part.

  • Finishing

    Once the part is machined, it may undergo sanding, polishing, painting, or other post-processing for enhanced functionality and aesthetics.

CNC Milling by Pro Fabrication - The best 3d printers in Baton Rouge

Key CNC Mill Components

✔ Spindle – Rotates the cutting tool at high speeds.
✔ Cutting Tools – Available in various shapes and sizes for different tasks.
✔ Work Table – Secures the workpiece during machining.
✔ Axes – Typically operates on three axes (X, Y, Z), with advanced mills incorporating additional axes for complex movements.
✔ Computer Control – Converts G-code into precise machine movements.

Materials Available for SLS

    • Aluminum

    • Stainless Steel

    • Steel

    • Various Metal Alloys

    • ABS

    • ADPE/UDHPEAcetal

    • Nylon

    • Garolite

    • Polypropylene

    • Peek

    • PTFE

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  • Maximum Part Size: 15 inches x 9 inches x 16 inches

  • Most Common Part Size: 6 inches x 6 inches x 6 inches

  • Precision: Tight tolerances within a few thousandths of an inch

  • High Repeatability: Ensures consistency across multiple production runs

Machine Capabilities

Close-up of CNC milling machine cutting a metal part with high precision at Pro Fabrication

Industries & Applications

    • Why CNC Milling? High precision, durability, and material versatility.

    • Examples: Brackets, housings, structural components.

    • Why CNC Milling? CNC mills can produce one-off or batch production of precision fixtures.

    • Examples: Custom brackets, jigs, and industrial tooling for manufacturing and assembly lines.

    • Why CNC Milling? Ensures tight tolerances and material flexibility for prototype testing.

    • Examples: Single-run metal or plastic prototypes for product development.

    • Why CNC Milling? Enables the creation of complex geometries in high-strength materials.

    • Examples: Small high-accuracy components for machinery or custom assemblies.ment Company

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High-precision CNC milling machine in operation at Pro Fabrication’s advanced manufacturing shop