It looks like it's based off of a grid. The tiny rivers are caused by box-pleated flaps not quite aligning with the non-box-pleated ones-this makes it seem like it is based on a grid-otherwise the proportions would probably have been worked out so the flaps lined up.
Hi! It's been a long while since I've been active on here. I deleted my Dropbox years ago, so some things, like my Dragonfly Varileg guide, are lost to time. I may still have other things, though! Email me if you have any questions.
Hi! It's been a long while since I've been active on here. I deleted my Dropbox years ago, so some things, like my Dragonfly Varileg guide, are lost to time. I may still have other things, though! Email me if you have any questions.
Or use the Haga theorum. Make a mark at the top of the paper 3/8ths from the upper right corner. Bring the lower right corner to that mark (you don't have to actually make a fold). The intersection of the left edge of the paper with the bottom edge of the paper is 6/11ths from the top edge.