spamsickle wrote:First, that bar that crosses over the middle of the platen is likely to block lights, camera, or both. Even if you're planning to put LEDs in the bar itself, I expect the bar would block the view of part of the book, if you're shooting books of any size at all.
spamsickle wrote:Second, the platen may not contact the book properly. Bot Rob's design and mine suspend the platen so it can swing freely and "tilt" to accommodate different book thicknesses. If the platen is just levering in, it will contact the edge of the book closest to you and be too high at the edge of the book furthest from you, or vice versa. Either way, it's probably not going to be what you want -- something that holds both pages fairly flat, so the cameras can photograph them that way.
TomHorsley wrote:I have hopes that a lose enough hinge adjusted to the right height so it is almost level as it makes contact will help, but that is indeed a thing to worry about, but I also wonder about the free swinging design. Can't it wind up rocking as you lower it and either slow you down or have similar problems hitting one side first?
spamsickle wrote:I'm holding the platen on both sides as I lower it, so in theory I can keep that from happening. Most of the time, I keep it from happening in practice too, but sometimes it will hit one side first. With me, when that happens, most often it just slides down into place. Occasionally when it slides, the book will slide with it (I should be using that non-skid foam that Daniel recommends, but I'm not). I'm planning to take steps to keep the book from moving at some point; for now, I just keep an eye on it, make sure it stays in frame, and let the software (Scan Tailor or Book Scan Wizard or even JpegCrops) handle it in post.
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