The Xometry app works best with JavaScript enabled!
Xometry Logo
Sign In
CapabilitiesIndustriesResourcesSuppliesBecome a SupplierFind Suppliers
Cookie Policy
Xometry stores cookies on your computer to provide more personalized services to you, both on this website and through other media. By using this website, you consent to the cookies we use and our Privacy Policy.

Acrylic for CNC Machining

Acrylic is an optically clear, lightweight, and UV-stable plastic that exhibits excellent strength and stiffness. These properties make it an ideal glass substitute for many applications. CNC machining in acrylic is widely used in the automotive industry as well as in the test and measurement industry.

cnc machined acrylic partscnc machined acrylic parts

About Acrylic for CNC Machining

Acrylic is a thermoplastic, meaning it can be melted and reformed and won’t lose its fundamental material properties. One of the key benefits of acrylic, when compared to other clear plastics, is the fact that it does not discolor with prolonged exposure to sunlight. In addition, it is lighter and more impact resistant than glass. One key weakness, compared to glass, is that acrylic is not suited to high-temperature applications.

Acrylic At a Glance

Acrylic

Acrylic is a tough material that has numerous benefits over glass. For one, acrylic can be easily machined whereas glass cannot. This gives you the option of CNC machining in acrylic when the task requires both complex geometry and high levels of optical clarity in the final part. Acrylic’s clarity makes it ideal for inspection windows, chemical testing hardware, and instrumentation covers.

General Acrylic Properties
Tensile Strength, Yield (MPa)Elongation at Break (%)Hardness (Shore D)Heat Deflection Temperature (°C)Melting Point (°C)

25-85

1-85

90

73-109

102-122

Finishes

Surface finishes are rarely applied to CNC machined acrylic because most would impede the material’s inherent optical properties. In cases where a finish is needed, opt for one that enhances these properties.

  • Bead Blast Polishing: Machined plastics often require additional post-processing to give them smooth, scratch-free surfaces. This is especially important with CNC machined acrylic as tool marks can severely reduce its inherent optical clarity. Polishing acrylic can remove any surface scratches and leave it with a smooth and clear surface.
Xometry Image

Cost-saving Design Tips

Acrylic is a readily available material but take care to design within the limits of the available material as described below.

  • Design to standard sizes: Acrylic is typically supplied in sheets of varying thicknesses as well as extruded forms such as tubes and solid bars. Designing parts to fall within the dimensions of off-the-shelf sheet and bar stock will keep costs to a minimum. If the required part is too large, consider breaking it into multiple components that can then be glued or fastened together after machining. 

    CNC machining design tip
    Instant Quoting Engine

    Need CNC Machined Parts in Acrylic?

    Quick Links

    • Contact Us

    • Help Center

    • Our Story

    • Careers

    • Press

    • Investors

    • Xometry Go Green

    • Legal

    • Refer a Colleague

    Locations

    • 7529 Standish Place

      Suite 200

      Derwood, MD 20855

    • 7940 Cessna Avenue
      Gaithersburg, MD 20879
      240-252-1138


    • 7315 Wisconsin Ave
      Suite 300 East
      Bethesda, MD 20814


    • 446 East High Street
      Lexington, KY 40507


    • 91 Northstar Dr.
      Jackson, TN 38305


    • Ada-Lovelace-Str. 9
      85521 Ottobrunn, Germany
      +49 32 22 109 8186
      www.xometry.eu

    Xometry Go Green Initiative
    2.0M+
    LBS OF C02 OFFSET

    Xometry
    © 2021 Xometry, All Rights Reserved