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CNC (Computer Numerical Control) machining is a precise manufacturing method that can create complex shapes and designs from various materials. When it comes to plastic, choosing the right type is crucial for achieving optimal performance, durability, and cost-effectiveness. So, what is the best plastic to CNC?
1. Acrylic (PMMA)
Acrylic, also known as PMMA, is one of the most commonly CNC-machined plastics. It’s favored for its excellent optical clarity, ease of machining, and ability to be polished to a smooth, high-gloss finish. Acrylic is ideal for creating signs, displays, and light fixtures due to its transparency and aesthetic appeal.
2. ABS (Acrylonitrile Butadiene Styrene)
ABS is another popular choice for CNC machining because of its strength, toughness, and ease of machining. It’s commonly used in automotive, consumer goods, and industrial applications. ABS is highly impact-resistant, making it suitable for parts that will undergo mechanical stress.
3. Nylon (Polyamide)
Nylon is a versatile, durable thermoplastic with excellent wear resistance and low friction properties. It’s often used for gears, bearings, and other moving parts due to its self-lubricating nature. CNC machining nylon requires specific considerations regarding moisture content, as it is hygroscopic and can absorb water.
4. Delrin (Acetal)
Delrin, or acetal, is a high-performance plastic often used for CNC machining due to its stiffness, low friction, and dimensional stability. It is excellent for producing precision parts like gears, bushings, and mechanical components that need to withstand wear and stress.
5. Polycarbonate (PC)
Polycarbonate is another great option for CNC machining, especially when high impact resistance and transparency are required. It is often used for protective covers, safety shields, and similar applications where durability is key.
In conclusion, the best plastic for CNC machining depends on the specific requirements of your project, including strength, flexibility, clarity, and temperature resistance.
