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Hacking a flatbed scanner to scan very large documents

lds

When you need to scan really large documents, camera setups can get pretty expensive. There are professionals that do it, but they are fairly pricey too. What if you need to do it on the cheap? A flatbed scanner would be perfect, but the lip on the edge of most flatbed scanners keeps the document from touching the platen properly. [Matthew] decided to hack his Canon LiDE 90 scanner to use it in a face-down format. By removing the top of the case, and making a couple extra tweaks, the scanner can now lay flat and simply be moved in a grid.

Once you have the images, you’ll need a way to stitch them together. [Matthew] points to this tutorial, but he awesomely decided to write a little Python script to make it all happen automatically. We imagine that script might be useful for more than just this project.

We’ve seen some other scanners recently, but this one is probably the easiest for the majority of hobbyists to achieve with parts on hand.

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