Daniel Reetz, the founder of the DIY Book Scanner community, has recently started making videos of prototyping and shop tips. If you are tinkering with a book scanner (or any other project) in your home shop, these tips will come in handy. https://www.youtube.com/channel/UCn0gq8 ... g_8K1nfInQ

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by duerig
16 Nov 2017, 09:53
Forum: Scanners and Build Threads
Topic: Archivar - wooden scanner based on Archivist
Replies: 21
Views: 664

Re: Archivar - wooden scanner based on Archivist

I was never able to ensure that the frame was square enough for camera alignment to just work with fixed placement of the camera. The card-and-mirror camera alignment system came out of that to allow a perfectly aligned camera even if the frame is slightly out of square. The big disadvantage of the ...
by duerig
14 Nov 2017, 11:13
Forum: Help with this site
Topic: Archiving the Forums?
Replies: 6
Views: 1122

Re: Archiving the Forums?

There was some followup in email. Basically, we need a script to pull out the public information from the database periodically and save it off. This is different from a normal backup because we only want to pull some information from the database. I talked about this some with Jacob, but he hasn't ...
by duerig
07 Nov 2017, 14:10
Forum: Scanners and Build Threads
Topic: [Flatbed] Putting weight on the spine
Replies: 5
Views: 115

Re: [Flatbed] Putting weight on the spine

If you really don't care about the spine of the book, your best bet is to just cut off the spine. Remove the cover and then remove the glued together spine. Some people use a bandsaw. But actually, I think a simpler option (and less likely to cause issues) is to clamp the book together in a vice and...
by duerig
01 Nov 2017, 12:53
Forum: Scanners and Build Threads
Topic: Archivar - wooden scanner based on Archivist
Replies: 21
Views: 664

Re: Archivar - wooden scanner based on Archivist

For getting deep into the gutter, you might try the Impost scanner design. Or I've had pretty good results with lasers. But there is only so much you can do with fixed-angle platen scanners like the Archivar (or the Archivist or Archivist Quill for that matter).

-Jonathon Duerig
by duerig
12 Sep 2017, 17:50
Forum: Cameras and Electronics
Topic: Using STICK to install CHDK on 2 cards for Canon A810. How to make one card for the left camera and one for the right?
Replies: 5
Views: 285

Re: Using STICK to install CHDK on 2 cards for Canon A810. How to make one card for the left camera and one for the righ

Your A810 cameras have a good chance of working. The difference is that I have A2500 and ELPH 160 cameras on hand and have tested them. So I am much more confident that they will work and I can more easily reproduce and fix any issue that does arise. In addition, I have crafted images that are known...
by duerig
09 Sep 2017, 12:27
Forum: Programs, Software releases, and more.
Topic: Any way to convert book scans into PDF with vector text?
Replies: 5
Views: 373

Re: Any way to convert book scans into PDF with vector text?

I should add that there are a number of open source pixel-image-to-vector conversion tools around. I tried a number of them and was impressed by neither the compression nor the quality. It is possible that one or more of them has made advances since then, and you can do a search on Github or general...
by duerig
09 Sep 2017, 12:24
Forum: Cameras and Electronics
Topic: Using STICK to install CHDK on 2 cards for Canon A810. How to make one card for the left camera and one for the right?
Replies: 5
Views: 285

Re: Using STICK to install CHDK on 2 cards for Canon A810. How to make one card for the left camera and one for the righ

The distinction between left/right (even/odd) was kept on the SD card of the camera when using Spreads. In this case, after using STICK to install, you will want to create a text file on the SD card. The file is called 'OWN.TXT' and contains just the word 'even' or just the word 'odd'. It should exi...
by duerig
08 Sep 2017, 11:25
Forum: HELP
Topic: Does anyone have a cad file for Archivist book scanner?
Replies: 4
Views: 276

Re: Does anyone have a cad file for Archivist book scanner?

smartechs, click on the individual part descriptions. You will want to read about the purpose and details of each part in any case because that will help you make the part and fix any problems that may arise during assembly. At the bottom of the part page are links to PDFs and/or DXFs which include ...
by duerig
04 Sep 2017, 18:46
Forum: Programs, Software releases, and more.
Topic: Pi Scan 1.5: DSLR and Mirrorless Camera Support
Replies: 0
Views: 233

Pi Scan 1.5: DSLR and Mirrorless Camera Support

I've just released Pi Scan 1.5 on github: https://github.com/Tenrec-Builders/pi-scan The big new feature is that it supports the gphoto2 library now, and so any camera that is compatible with gphoto2 can now be used with Pi Scan. See the supported cameras here: http://www.gphoto.org/proj/libgphoto2/...
by duerig
23 Aug 2017, 13:06
Forum: Show and Tell / Book Projects
Topic: Going to the Maker Faire
Replies: 5
Views: 442

Re: Going to the Maker Faire

Last time I did something like this, I set up a monitor that displayed the designs photo gallery. If you want to set up something similar, let me know and I can help. Also, don't get discouraged if there is no obvious effect after the initial interest. You will be planting a seed of an idea that may...