How to Choose the Right Acrylic for Laser Cutting

Laser cutting is a versatile and highly precise method for shaping acrylic, but not all types of acrylic are suitable for laser work. Selecting the right acrylic is essential for achieving smooth, clean cuts and high-quality engravings. Here’s a guide on how to choose the best acrylic for your laser cutting projects:

1. Types of Acrylic: Cast vs. Extruded

There are two main types of acrylic used for laser cutting: cast acrylic and extruded acrylic. Each type reacts differently under the laser, so understanding the differences is crucial:

• Cast Acrylic: This is produced by casting liquid acrylic into molds, resulting in a more stable material for engraving. Cast acrylic typically vaporizes when cut, leaving clean and smooth edges. It’s ideal for engraving projects, as it produces a frosty white engraving result.

• Extruded Acrylic: Manufactured by extruding acrylic through a form, this type is cheaper and cuts more smoothly than cast acrylic. However, the downside is that engraving on extruded acrylic produces clear markings rather than frosty white. It is best for simple cutting tasks rather than detailed engravings.

Choosing Between Cast and Extruded:

• Use cast acrylic for detailed engraving and frosty finishes.
• Choose extruded acrylic for simple cuts where clarity is more important than detail.

2. Thickness of Acrylic

Acrylic comes in various thicknesses, from thin sheets (1mm) to thick blocks (25mm or more). The laser’s ability to cut through acrylic depends on its power and focus. While most CO2 laser machines can cut through standard acrylic thicknesses of 3-10mm, thicker materials may require higher-powered lasers.

Guidelines for Thickness:

• For detailed cutting and engraving, stick to thinner acrylic (3-6mm).
• For structural purposes like signage or display stands, use thicker acrylic (6-10mm or more).

3. Acrylic Colors and Finishes

Acrylic is available in a wide range of colors and finishes, including transparent, translucent, and opaque. Laser cutting and engraving may have different results depending on the color and finish:

• Clear acrylic cuts easily and engraves well, providing a sharp contrast when engraved.
• Opaque acrylic also cuts smoothly but may not offer as much contrast in engravings.
• Translucent or colored acrylic can be trickier to work with, as certain colors absorb more laser energy, affecting the cutting depth and quality.

Choosing Colors:

• Use clear or white acrylic for the best engraving contrast.
• Opaque and colored acrylics are ideal for signage and decorative items, but test the laser settings beforehand to ensure the cut is clean.

4. Budget and Supplier Quality

The price of acrylic can vary depending on thickness, type, and finish. Higher-quality acrylic tends to yield better cutting and engraving results, while cheaper, lower-quality sheets may lead to melting, warping, or uneven cuts. Always purchase from reputable suppliers to ensure consistent quality.

Our Dura Series CO2 Laser Machines

To get the best results from your acrylic laser cutting projects, it’s important to pair the right material with a high-performance laser machine. Our Dura Series CO2 Laser Machines are perfect for cutting and engraving acrylic, with features like:

1. Linear Module Guide Rails: Ensures fast speed and smooth operation with self-cleaning capabilities.
2. High-Quality Motors and Drivers: Japan Shinano motor provides high torque and precision for flawless results.
3. Top-Quality Components: Equipped with the best laser tubes, power supplies, and water chillers for long-lasting performance.
4. Safety Standards: Manufactured to meet strict safety and production processes.

Whether you’re working with cast or extruded acrylic, our Dura Series machines will handle your projects with precision and efficiency. Visit Foshan Myoung Laser Technology Co., Ltd. for more details and get started on your next acrylic cutting project today!