CNC machining strategies for acrylic (PMMA) - covering material selection, fixturing, cutting parameters, and post-processing. Learn how to achieve optical-grade finishes with ≤0.02mm tolerances for applications like light guides, display prototypes, and automotive lighting.

 For prototyping and low-volume manufacturing, CNC machining offers unmatched precision and flexibility with engineering-grade plastics. This guide details the 8 most frequently used plastics—ABS, Nylon, POM, PC, PMMA, PEEK, PTFE, and PP—highlighting their mechanical properties, ideal applications, and machining best practices. Optimize material selection to balance cost, functionality, and manufacturability for prototypes and batches under 500 units.