The Nuts and Bolts of How It Works

CNC machining plastic isn't like metal. It requires a lighter touch and different tools. Here's how good shops handle it:

• Specialized Tooling: Using sharp, polished-flute tools designed specifically for plastics to prevent melting and ensure clean edges.

• Secure Fixturing: Holding parts firmly without cracking or distorting them during cutting.

• Optimized Feeds/Speeds: Cutting fast enough to avoid heat buildup but slow enough to maintain precision.

• Deburring by Hand: Carefully breaking sharp edges for a finished, injection-molded feel.

Beyond Machining: The Finishing Touches

The magic happens after the part is cut. This is how you get a professional look:

• Sanding & Polishing: Removing all tool marks for a smooth feel.
• Bead Blasting: Creating a uniform matte texture that hides fingerprints.
• Painting & Coating: Adding color, brand logos, or special textures.
• Laser Etching: Adding permanent labels, logos, or instructions.

The Bottom Line

For custom controller housings, CNC machining offers unbeatable flexibility, speed, and cost-effectiveness for development and small to medium production runs. It lets you perfect your design and even get products to market without the massive financial gamble of injection molding.