Acrylic (PMMA) CNC Machining

Machined acrylic is a rigid, translucent thermoplastic that offers UV stability.

Sample of PMMA Acrylic

Product Description

Acrylic, also known as polymethyl methacrylate (PMMA), is a versatile plastic material widely used in CNC machining for its remarkable properties. Acrylic's optical clarity, light transmission, and UV resistance make it a popular choice for a wide range of applications, from signage and display products to lenses and lighting fixtures. 

With its exceptional combination of optical clarity, machinability, and versatility, acrylic is an excellent choice for CNC machining applications that require precision and aesthetics.

Key Benefits 

  • Lightweight, yet durable
  • Highly machinable 
  • Translucent 

Common applications for acrylic CNC parts:

  • Light pipes
  • Lenses
  • Light shades
  • Optical fibers
  • Signs

Machined Acrylic (PMMA) Material Properties

  Tensile Strength Elongation at Break Tensile Modulus Flexural Strength Hardness, Rockwell
Test Method ASTM D638 ASTM D638 ASTM D638 ASTM D790 ASTM D785
Machined Arylic 8,038 psi 2.7% 350,000 - 500,000 psi 12,000 psi M80 - M100

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CNC Machining Design Guide

In this guide to CNC machining, you'll learn how to create efficient, manufacturable metal and plastic parts for prototyping and production.