The use of carbon fibre reinforced plastics increases in aircraft and automobiles industries. Yanagimoto et al.
(2012) developed a forming process of carbon fibre reinforced plastics. Most of carbon fibre reinforced plastics
have comparatively simple shapes such as plates and curved shells, and it is not easy to manufacture threedimensional
mechanical parts. A 3D printing process of carbon fibre reinforced plastics enables a flexible
manufacturing system, and the strength of mechanical parts is increased by inclusion of carbon fibres.