This set of files will allow you to print fuel tanks in 3 different sizes - the large versions were designed for the Master Grade Deep Striker, and the smaller ones are for Master Grade kits such as the Sazabi, Sinanju, Sinanju Stein and Hi-Nu Gundam. They will also work with any other mecha kits of similar size and scale.
The files are supplied both supported and non-supported for easy printing.
STL (Stereolithography, filesize: 34 MB), PDF (PDF, filesize: 1.25 MB)