ABS or Acrylonitrile Butadiene Styrene is one of the most widely used industrial thermoplastics, which has great mechanical properties and good heat resistance up to 90°C. Parts printed with ABS are not only widely used in the prototyping stage of product development, but also in later stage of function testing and parts assembling. Printed ABS parts have been successfully used in the manufacturing application with or without post-finishing. To print ABS successfully, heated bed and closed chamber is necessary; to print ABS in office/factory and indoor environments, an air filter is recommended.