A few general rules about all of the instructional sheets on this blog:
A user has two options when printing: (1) print the document full-size, or (2) print at a slightly reduced size.
The former allows for a slightly larger product by starting with a 8.5"x8.5" square, and will require just one cut. However, since most printers cannot print directly to the edge of the paper, there will be a no-print margin around the three sides of the paper that will not need to be cut. Each page is specifically designed to still work properly even with that no-print margin.
The latter will shrink the document slightly, which will result in a slightly smaller product and requires four cuts (one for each side of the square).
Either will work, and both have advantages and disadvantages. Just make sure that both sides of the paper are printed the same way, otherwise the proportions will be skewed and the result not accurate.
My 8 March 2013 blog about origami prompted me to launch a second blog, one dedicated solely to origami. This way, as I complete instructional sheets, I can post them directly to this blog and it will not interfere with my Beatles blog.