Abstract

Three-dimensional (3D) printing technology has made a big development in this decade. Fused deposition modeling (FDM) method become major method of 3D printing technology. Especially, various materials, such as metal, ceramic, and food, can be utilized for FDM method by mixing the raw materials with chemicals. Because of such improvement, there are many applications such as arts and industrial products. Various appearance reproducibility induce appearance control for 3D printing. To control the appearance in 3D printing, many researches related with appearance would be able to apply. However, to measure the appearance, method or instruments which are currently used are large scale and high cost. Moreover, it is difficult for non-expert user to measure the appearance of the object. The rapid reproduction is also important characteristics of 3D printings. Therefore, the measurement system which is commercially available, rapid and compact, is required for handling the appearance.

© 2016 Japan Society of Applied Physics, Optical Society of America