Water and Ethanol - OpenSCAD generated from chemical SDF files

Molecule structure STL files are generated by OpenSCAD, of which program is generated by "sdf2scad.perl" Perl script from NCBI PubChem database (3D SDF format files).
Model generator Perl script & OpenSCAD subroutines are also included for somebody who would like to generate your own chemical files from SDF data, or tune model parameters (need Perl & OpenSCAD).

Water (H2O) and Ethanol (C2H5OH, alcohol) are most basic molecule. I'll upload more complex molecule model.

* Feb. 22 2015: up