I went and bought an extension cord, some knick-knack drawer modules, a multimeter and a 50 cent bag of screws. I set the multimeter on the back of the helmet, traced the outline onto some masking tape and proceeded to break out the Dremel. I used regular re-enforced cutting discs during this process and noticed that the fiberglass exterior shell was much harder to cut than I expected. The material was much softer than 14 gauge WW2 steel and I was pleased that I didn't originally end up with the NATO helmet for this project. The helmet consists of layers and layers of fiberglass and maybe sawdust or something similar. It burns often and really produces a foul smell which stinks up the house. The material was easy to work with and I could easily use a sanding drum or wood files to clean up my cuts and test fit the multimeter. I used some small files as the remaining step to make sure that everything would fit just right. The SMC network router that I planned on using will be covered later on in Part 2 of this article.