 Polyetheretherketone, peak, is a strong, lightweight polymer that can be used as a 3D printing material. It has been shown to have better mechanical properties than traditional 3D printing materials such as acrylonitributadiene styrene ABS. In this study, peak was compared to ABS and it was found that peak had significantly higher tensile, compressive, and bending strengths. Additionally, the modulus of elasticity was similar between the two materials. This article was authored by Wenjing Wu, Ping Geng, Guowei Li, and others.