About this 3D model

http://bunkai.sakura.ne.jp/bunkai-wp/3d_printer/520/ PRN3D??????? ???Y???????????????????? ???????????????????????????????????? ??????Y???????????????? Is PRN3D exclusive parts. I has been improved to a high rigidity type the Y-axis of the standard block. I think peripheral parts can be fitted with standard parts, and able to feel free to try. This alone, up and down shake of the Y-axis is suppressed equivalent!