J. Technology and Education, Vol.21, No.1, pp.9-16 (2014)

研究論文

3Dプリンタ用の分子モデルの設計と作成

 

吉村 忠与志*¹、吉村 三智頼²

¹福井工業高等専門学校　名誉教授(〒906-8507鯖江市下司町)、

²敦賀気比高等学校　教諭(〒914-8558敦賀市沓見町164-1)

*tadayosi@fukui-nct.ac.jp

 

Design and creation of a molecular model for a 3D printer

 

Tadayosi YOSHIMURA¹ and Michiyori YOSHIMURA²

¹Fukui National College of Technology(Geshi, Sabae, Fukui 916-8507, Japan)

2Tsurugakehi High School(Kutsumi 164-1, Tsuruga, Fukui 914-8558, Japan)

 

(Received December 16, 2013; Accepted January 10, 2014 )

 

Molecular modeling software has many applications. However, molecular modeling of the CAD system to create an STL file is almost nonexistent. Molecular structure coordinate data, which have been published, cannot be directly exploited by CAD.

OpenSCAD is written in an object language in the same way programmers write solid 3D CAD models. It is not model interactive; instead, the user draws or constructs an object by reading a script. Therefore, CAD is optimal for inputting coordinate data of a molecular structure from the keyboard. As a result, the user is able to create an STL file for a 3D printer by using OpenSCAD.

To display a 3D molecular structure, written scripts are constructed by using two settings: the covalent radius of the sphere of the atoms (sphere (r=10.4)) and the coordinates (translate ([x, y, z])). This method is optimal for 3D modeling of small molecules. We publish lists of the OpenSCAD language of several molecular sphere models in this paper.

Key words: molecular sphere model, molecular modeling software, molecular structure coordinate data, OpenSCAD, creating an STL file for a 3D printer