CORSET SPINE!
There's probably a tutorial for this out there somewhere, I wouldn't know as I didn't look. I just decided to Fuck Around and Find Out, and I think the end result came out really beautifully!
I've done the fucking around so you don't have to! Here are the steps so that you, too, can make a book that says “unadulterated filth, but like, classy” [alternatively: “The opposite of whatever 50 shades had going on over there”]
(I don't believe in math, so no precise measurements here, I eyeballed it.)
Have hubris and spare bookcloth
Buy a grommet tool and grommets or dig yours out from wherever you left it ten years ago (watch a YouTube video or something on how to use it if you don't know how)
Decide on how big you'd like the edges of your corset to be, and then cut fabric to at least a half inch wider than that, with about a half inch overhang at both ends to fold over the top and bottom of the book cover. Mine was about 2.5 inches by 11 inches.
Remember that you are making a corset spine on two sides of the book and do the same thing a second time.
Cut two pieces of bristol board (or other thin but stiff paper-like material. It needs to be stiff enough to be able to fold the bookcloth around the edges) to the length of the cover you're attaching them to and about half-ish the size you want the finished corset to be on each cover. Mine was 1 inch by 9 inches.
In order to give my cloth a clean edge that wouldn't fray, I essentially "hemmed" it using glue. I used my hinge spacers to mark the cloth at 5mm on either edge, then glued the bristol board down at the edge of the mark on one side. Let dry for ten minutes or so so the paper doesn't slide
Put a thin layer of glue along both marked edges, then fold it over to the back side of the book cloth. It will overlap your bristol board on one side.
Dry both corset sides under a flat object with light weight for at least an hour or until you remember to come back to them. They need to be dry and flat or your corset will look weird ask me how I know
Mark the side of the corset that does not have bristol board with evenly-spaced marks for where you want your grommets to go. You only need grommets for the length of the bristol board, there will be extra cloth at the ends. Try to keep them even from the edge as well as each other, because it will be obvious if you don't ask me how I know
Place grommets. Follow your tool's instruction. Mine punches holes in the fabric, then you insert a grommet and backer, then press them with the other part of the tool. YMMV
At this point you're going to need to be working with a completed book case (I do bradel binding). I think you could do this on a completely cased-in book but I didn't try it. It's important to note that these corset strips are not structurally important. I think you could make the case and make them structurally important, but I just put them on top of the bookcloth on a completed case
Dry-fit the corset pieces to see where you want them on your case to give you whatever your desired amount of corset is. I aligned the edges of my pieces with the edge of the cover boards at the hinge. When you're satisfied with the placement, it's time to glue!
Apply a thin layer of glue to the bristol board and the folded over hem/edge on top of it. Do NOT glue it all the way to the grommets - you're going to need some room to work with the ribbon or whatever your lacing material is ask me how I know
Glue it to the cover and burnish it with your bone folder for good adhesion. Do the other side. (Make sure that your grommets are even with each other across the spine.
(at this point I put the case under weight and let it dry for a little while for the glue to set but if you feel frisky you could do the next step and THEN put it under weight)
Apply glue to the entire piece of fabric overhanging the top and bottom, fold it over the edge of the case, and glue it down.
Now would be a GREAT time to trim the corset sides to match the edge of bookcloth fabric inside your case, so it doesn't look weird underneath endpaper ask me how I know
I used binder clips to hold everything in place to dry.
Case in as usual
Lace it up like shoelaces!










