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 the.traveller
14 Aug 2011, 04:39
Forum: Lighting
Topic: Defuse the light
Replies: 8
Views: 14264

Re: Defuse the light

Well summer has been a bummer. It rained most of the days and my scanner still hasn't been build. So I can't show my theory in practice.
by the.traveller
14 Aug 2011, 04:29
Forum: Show and Tell / Book Projects
Topic: Scanning Plastic Books
Replies: 9
Views: 12405

Re: Scanning Plastic Books

Isn't it possible to temporaraly remove the plastic. I have photo albums from the 70's which fall apart because the adhesive plastic has lost it's glue-ing effect. It will take more time lifting the plastic sheet and putting it back, but it will negate the reflection and the curves. Otherwise you bu...
by the.traveller
24 Jul 2011, 08:59
Forum: OCR/Optical Character Recognition
Topic: alternative to abbyy?
Replies: 13
Views: 14896

Re: alternative to abbyy?

Snaguy: I used Snagit to record the video. Don't you mean Camtasia from Techsmith, also the makers of Snagit. I have never been working with Abby Finereader, but it sure looks very nice. Do you have to purchase a special edition of Abby or is this possible even in the cheaper versions. (I see you h...
by the.traveller
20 Jul 2011, 14:22
Forum: Chat
Topic: ALL the things!
Replies: 1
Views: 2626

Re: ALL the things!

Only if I can pay her half the money. :lol:

Eh, actually no because then I need to read the book and act like an adult.
by the.traveller
20 Jul 2011, 13:04
Forum: Scanners and Build Threads
Topic: Fix Keystoning via hardware adjustments
Replies: 37
Views: 17136

Re: Fix Keystoning via hardware adjustments

Thank you dpc for the formula.
Now with the help from the website Jack showed us I have a better understanding of what I have to do, using which formula.
by the.traveller
20 Jul 2011, 12:00
Forum: Scanners and Build Threads
Topic: Fix Keystoning via hardware adjustments
Replies: 37
Views: 17136

Re: Fix Keystoning via hardware adjustments

http://www.diybookscanner.org/forum/download/file.php?id=2999 BTW, your example of the 30 degree right triangle is easy because the hypotenuse is twice the length of the side opposite the 30 degree angle. hannah montana - say what.jpg Let me chew a moment on that. BC = 30° c = 12 of which a = c/2 ...
by the.traveller
20 Jul 2011, 11:00
Forum: Scanners and Build Threads
Topic: Fix Keystoning via hardware adjustments
Replies: 37
Views: 17136

Re: Fix Keystoning via hardware adjustments

For me it is mind dazzling. This site has an easy triangle calculator. Just put in the variables you know: http://www.csgnetwork.com/righttricalc.html Yes this does it, thank you very much for this tip. Pity they don't show the intermediate steps at his site? Seeing the intermediate steps I can fol...
by the.traveller
20 Jul 2011, 06:00
Forum: Scanners and Build Threads
Topic: Fix Keystoning via hardware adjustments
Replies: 37
Views: 17136

Re: Fix Keystoning via hardware adjustments

For me it is mind dazzling. Can we go a few steps back and forget the radians. A circle is 360°. If we place an unequal triangle in it. It will look like this Goniometric circle. Goniometrische-cirkel-sin-cos.png I want to calculate the dashed line on the right and the red part of the cosinus line....
by the.traveller
19 Jul 2011, 21:19
Forum: Scanners and Build Threads
Topic: Fix Keystoning via hardware adjustments
Replies: 37
Views: 17136

Re: Fix Keystoning via hardware adjustments

Postby rob » Yesterday, 21:49 You were using radians when you have to use degrees. Not sure how to set degrees in Excel, though. Use the Excel function RADIANS to convert a value in degrees to radians. sine of BC (30 deg) should be 0.5. cosine of BC should be 0.8660254 Gentlemen, this is again pro...
by the.traveller
19 Jul 2011, 12:35
Forum: Scanners and Build Threads
Topic: Fix Keystoning via hardware adjustments
Replies: 37
Views: 17136

Re: Fix Keystoning via hardware adjustments

If you have a right triangle and know the length of one side and one of the other angles, you can find the length of the other sides using sine and cosine functions. Given a right triangle with sides a, b, and c, with c being the hypotenuse, and BC being the angle formed by sides b and c: a = sin(B...