Living hinges

I am curious about the durability and maintenance needs of these. A friend makes such gorgeous journal pages I would like to make them a wooden cover. But I am not sure how long a living hinge would survive in a daily journal.

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A key thing is to hold the ends of the lines to be curved even slightly as the strain is spaced evenly around a curve so even a millimeter is hundreds of times bigger than a kerf radius. Also if it does not threaten the design, wood glue canvas to the inside, and the canvas will allow even cracking to be very confined and strengthen every part of the curve.

Alternatively, you can leave the living hinge part static and have rotation circle hinges to the lid

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In wood, not long at all. They are decorative, not functional.

“Hinge” would be better replaced with “curves” or “corners”.

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