What is the best way to store plastic CNC prototypes?

As a supplier of plastic CNC prototypes, I understand the importance of proper storage. The way we store these prototypes can significantly impact their quality, functionality, and longevity. In this blog post, I'll share the best practices for storing plastic CNC prototypes based on my experience in the industry.

Understanding the Nature of Plastic CNC Prototypes

Before delving into storage methods, it's essential to understand the characteristics of plastic CNC prototypes. These prototypes are created through computer numerical control (CNC) machining, a subtractive manufacturing process that uses pre-programmed computer software to control the movement of factory tools and machinery. The materials used for plastic CNC prototypes can vary widely, including nylon, polyoxymethylene (POM), and other polymers. Each material has its own unique properties, such as strength, flexibility, and chemical resistance, which can affect how they should be stored.

Factors Affecting Plastic CNC Prototype Storage

Several factors can influence the storage of plastic CNC prototypes. Temperature, humidity, light, and chemical exposure are some of the most critical factors to consider.

• Temperature: Extreme temperatures can cause plastic to expand or contract, leading to warping, cracking, or deformation. High temperatures can also accelerate the aging process of plastic, making it more brittle over time. On the other hand, low temperatures can make plastic more rigid and prone to breakage. Therefore, it's important to store plastic CNC prototypes in a temperature-controlled environment.
• Humidity: Moisture can have a detrimental effect on plastic. High humidity levels can cause plastic to absorb water, which can lead to swelling, softening, and mold growth. Conversely, low humidity can cause plastic to dry out and become brittle. Maintaining a stable humidity level is crucial for preserving the integrity of plastic CNC prototypes.
• Light: Prolonged exposure to sunlight or other sources of ultraviolet (UV) light can cause plastic to fade, discolor, and become brittle. UV light can break down the chemical bonds in plastic, leading to a loss of strength and flexibility. To prevent UV damage, plastic CNC prototypes should be stored in a dark or low-light environment.
• Chemical Exposure: Plastic can be sensitive to certain chemicals, such as solvents, acids, and alkalis. Exposure to these chemicals can cause plastic to dissolve, corrode, or become discolored. It's important to keep plastic CNC prototypes away from sources of chemical contamination and to use appropriate protective packaging.

Best Practices for Storing Plastic CNC Prototypes

Based on the factors mentioned above, here are some best practices for storing plastic CNC prototypes:

• Choose the Right Storage Location: Select a storage area that is clean, dry, and temperature-controlled. Avoid areas near windows, doors, or vents where temperature and humidity levels can fluctuate. A climate-controlled storage facility or a dedicated storage room is ideal for storing plastic CNC prototypes.
• Use Appropriate Packaging: Proper packaging is essential for protecting plastic CNC prototypes during storage. Use packaging materials that are clean, dry, and free of contaminants. Bubble wrap, foam inserts, and plastic bags can provide cushioning and protection against scratches and impacts. For larger prototypes, custom-made crates or boxes may be necessary.
• Label and Organize Prototypes: Clearly label each prototype with its name, part number, and date of production. This will make it easier to identify and retrieve prototypes when needed. Organize prototypes in a logical manner, such as by size, shape, or material.
• Store Prototypes Vertically or Horizontally: Depending on the shape and size of the prototype, it may be best to store it vertically or horizontally. For flat or thin prototypes, storing them horizontally can prevent warping or bending. For taller or more irregularly shaped prototypes, storing them vertically can save space and prevent damage.
• Regularly Inspect Prototypes: Periodically inspect stored prototypes for signs of damage, such as warping, cracking, or discoloration. If any issues are detected, take appropriate action to address them, such as repairing or replacing the prototype.

Specific Storage Recommendations for Different Plastic Materials

Different plastic materials have different storage requirements. Here are some specific recommendations for storing common plastic materials used in CNC prototyping:

• Nylon: Nylon is a strong and flexible plastic that is resistant to wear and tear. However, it can absorb moisture, which can cause it to swell and lose strength. To store nylon prototypes, keep them in a dry environment with low humidity levels. Use desiccant packets to absorb any moisture that may be present in the packaging.
• Polyoxymethylene (POM): POM, also known as acetal or Delrin, is a high-strength plastic that is resistant to chemicals and abrasion. It is relatively stable and does not absorb much moisture. However, it can be sensitive to UV light and high temperatures. Store POM prototypes in a dark, cool environment to prevent UV damage and thermal degradation.
• Acrylic: Acrylic is a clear, lightweight plastic that is commonly used for display purposes. It is relatively stable and does not absorb much moisture. However, it can be scratched easily and is sensitive to UV light. Store acrylic prototypes in a protective case or packaging to prevent scratches and keep them away from direct sunlight.

Conclusion

Proper storage is essential for maintaining the quality and functionality of plastic CNC prototypes. By understanding the factors that can affect plastic storage and following the best practices outlined in this blog post, you can ensure that your prototypes remain in good condition for an extended period. Whether you're a manufacturer, a designer, or a researcher, taking the time to store your plastic CNC prototypes correctly will save you time, money, and frustration in the long run.

If you're interested in purchasing high-quality CNC Made Plastic Nylon Turned Prototype, CNC Plastic Machining Auto for Aviation Part Prototype, or Milling POM Machining CNC Plastic Prototype, please feel free to contact us for more information and to discuss your specific requirements. We're here to help you find the best solutions for your prototyping needs.

References

• "Plastic Materials and Their Properties" by John Murphy
• "CNC Machining Handbook" by Peter Zelinski
• "Storage and Handling of Plastics" by the Society of Plastics Engineers