I composed this article several years ago, it is essentially rough and unfinished - the diagrams were roughly sketched on paper. Besides taking out some small sections that had what are considered 'secrets' I have elected to keep the article in its original form, down to the lazy hand sketches. As is so often the case you start working on something and it then goes on to become part of a larger work - so it will never be revisited in its singular form. The Geometry of the Spear This discussion comes about from trying to understand the Kenjutsu of a certain Koryu. This system has a focus on structure but does not emphasise Hanmi as I was taught it. I have removed some parts of this section. The template and focus on structure I found quite useful, however for me the question in my mind was ‘How does this work without Hanmi?’ which of course poses a question for those of us who see Hanmi as important as Shizentai – what does it give us? I like to use the spear here as the sp...