I worked out the algebra for crown binding (so you can make a binding to fit your pages if you need to).
- height of the page you want: this is p.
- number of signatures you want: this is n
- the width of what I’m calling the “gutter” (the concertina into which you will slot the pages): this is g
Then cut a concertina which is
p + 2g high
g x (2n+2) wide.
divide the page into 2n+2 sections (if n = 3, as in the book, then it’s 8 sections)
I’m pretty certain that an odd number for n works best (because it may muck up the mountains and valleys I think?).
From my experimenting today if g = 1cm it is a tad small: quite fiddly to fold. It’s practical (so far) for holding the pages in though, so if you’re a nice neat folder it may be fine.
g = 1.5cm is not too intrusive and it is easier to fold.
And here’s my next crown binding in progress: It’s made from the dustjacket from a book I altered recently.