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

Search found 23 matches

by LA2
09 Dec 2012, 22:49
Forum: R&D and New Technologies
Topic: Platen: Theory And Practice
Replies: 18
Views: 23362

Re: Platen: Theory And Practice

The second view deals with the "normal view" of the platen. http://www.youtube.com/watch?v=i5iYmLLWCEg Daniel, (sorry for commenting on an old thread) your 80° means the edge of your glass is 10° away from the camera's center, which points perpendicularly towards the center of the glass. If you mov...
by LA2
09 Dec 2012, 22:04
Forum: Lighting
Topic: Sparkles on DIY Hackerspace Scanner
Replies: 6
Views: 10820

Re: Sparkles on DIY Hackerspace Scanner

There is a forbidden zone, where lights should not be because they will cause reflexions. This zone is a rectangular cone that starts at the camera lens and goes to each corner of the glass, where it is mirrored, and forms a bucket shape around the camera. At the camera, this zone is always twice as...
by LA2
08 Dec 2012, 14:30
Forum: Cameras and Electronics
Topic: Do we actually need portable cameras ?
Replies: 43
Views: 37782

Re: Do we actually need portable cameras ?

Someone mentioned the Logitech C910, which is a $100 webcam that takes 10 megapixel still images. I learned that there is now also a Logitech C920, which at $70 takes 15 megapixel still images. The problem with all webcams, however, is that they have a fixed optical zoom, at quite a wide angle. To g...
by LA2
16 Nov 2012, 21:06
Forum: R&D and New Technologies
Topic: Google open-sources a DIY page-turning scanner
Replies: 17
Views: 18917

Re: Google open-sources a DIY page-turning scanner

I would buy one if it was available, but will not build one myself. I think the design can be improved for easier building and faster scanning. In the prototype, the book spends much time travelling, far away from the image sensors. Compare this to a sheetfed document scanner, where the next page is...
by LA2
19 Oct 2012, 00:12
Forum: Lighting
Topic: Ionaudio Booksaver?
Replies: 100
Views: 166754

Re: Ionaudio Booksaver?

On September 24, 2012, Konrad van den Bosch posted (http://www.iononline.nl/news/?p=98) that there would be a clearance sale of the Book Saver on October 6 through another website, debijenkorf.nl. I'm afraid that might be the last we hear of this product.
by LA2
27 Aug 2012, 11:13
Forum: Lighting
Topic: Ionaudio Booksaver?
Replies: 100
Views: 166754

Re: Ionaudio Booksaver?

Book Liberator and the Book Saver. Both put the cameras very close to the platen. Do we have any documentation of what the correct geometry should be? Is there any geometry/CAD software for Linux that easily solves this? The Book Saver uses a 120° book opening, i.e. the wings of the cradle are 30° ...
by LA2
27 Aug 2012, 09:28
Forum: Lighting
Topic: Ionaudio Booksaver?
Replies: 100
Views: 166754

Re: Ionaudio Booksaver?

I think we have three paths from here: 1) Are there any books or other artifacts that the current, unmodified Book Saver will capture with acceptable results? Perhaps it can be used as a light tent (a mini photo studio) for shooting stereo pictures of toys? Can we find any successful examples? 2) Ar...
by LA2
26 Aug 2012, 21:57
Forum: Lighting
Topic: Ionaudio Booksaver?
Replies: 100
Views: 166754

Re: Ionaudio Booksaver?

My initial experience is similar to what deklerkt reports, but I haven't spent a lot of time testing yet, so I'm a bit hesitant to make a judgement. Each camera captures 2688×1900 pixels (5.1 million pixels) over the size of an A4 sheet (297×210 mm), or 230 dpi, which is a lower resolution than I wa...
by LA2
24 Aug 2012, 14:10
Forum: Lighting
Topic: Ionaudio Booksaver?
Replies: 100
Views: 166754

Re: Ionaudio Booksaver?

I received my Ion Audio Book Saver today, have assembled the parts, and started to use it. You need a standard SD card, which is not included. There is a battery compartment for 4 AAA batteries, but you don't need batteries, since the device uses power from the USB connector. The unit produces JPEG ...
by LA2
28 Jun 2012, 20:36
Forum: Lighting
Topic: Ionaudio Booksaver?
Replies: 100
Views: 166754

Re: Ionaudio Booksaver?

Indeed, the ION Book Saver is now on sale in Europe for 149 € (roughly $200). Free delivery in Benelux. "Available with short notice" (Beschikbaarheid Snel leverbaar), whatever that means? Has anybody bought one, and can you report your experience? http://www.iononline.nl/products/image-conversion-v...