I so appreciate your willingness to so patiently answer my endless questions. Now that I accumulated the materials you suggested, I have a few more questions related to making new hard covers for the Bibles. I’ve read many guidelines on the Internet (unsurprisingly) far from consistent, and I turn to you for keeping me from going astray.
Question 1: Using the 0.08 inch Davey Board you recommended for the cover substrate, it would seem that if I use the same board for the spine as the covers, that will force the spine to be flat. But the book blocks of these Bibles have curved backs and faces. So should the spine be made from a thinner material in the new cover than the front and back cover pieces?
Question 2: It seems that the height of the cover boards is fairly consistently about 8 mm greater than the height of the book block. But the width and the “gaps” are not. (One source states the cover board widths should be 3 mm less than the block width, the gaps 7 mm, and the spine width is 4 mm wider than the measured spine). It would seem that the indentation (which I assume all books have?) along the end where the spine and the covers meet depends upon some combination of how much shorter-than-the-block-width is, and the gap dimensions? The boards are to be covered with Buckram fabric.
I can imagine nothing worse than to make a new cover: cutting board and fabric, gluing it up, and then it doesn’t properly fit the text block!
Thank you again!
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