Despite the many benefits of POM CNC machined parts, they do have some limitations. They are not as strong as some metals, and may not be suitable for use in applications where high levels of force or pressure are present. They are also not as heat-resistant as some other plastics, and may not be suitable for use in high-temperature environments. Overall, POM CNC machined parts are a versatile and high-quality choice for a wide range of applications.