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 49 matches

by reggilbert
14 Apr 2011, 19:49
Forum: Chat
Topic: ted talk: diy hardware as a "starter kit for civilization"
Replies: 1
Views: 2518

ted talk: diy hardware as a "starter kit for civilization"

I thought folks on this list might be interested in a heart-warming 4-minute TED talk by a fusion-energy physicist-turned-farmer describing a very DIY Book Scanner -like effort to open-source design what he identified as the 50 machines needed to run a civilization. Spoiler fact: his community has d...
by reggilbert
07 Feb 2011, 01:58
Forum: Introductions and connections
Topic: Could I ask for a book?
Replies: 23
Views: 21470

Re: Could I ask for a book?

Russia now has the right to browse through your hard drives in the airport No surprise there, as Russia is a thinly masked dictatorship. Amazingly, the same is true here in the United States, so long as the travel involved is return from a trip abroad. Check out this post by Glenn Greenwald at Salon.
by reggilbert
06 Feb 2011, 17:43
Forum: Show and Tell / Book Projects
Topic: Let's Make A DIY Book Scanner Test Chart
Replies: 32
Views: 39046

Re: Let's Make A DIY Book Scanner Test Chart

Just tickling this topic. To summarize the discussion so far: The test page discussed here is intended to measure the image produced by a scanner setup. It is not intended to post-processing setups, a worthy goal that could be the subject of another topic. The test page discussed here should be desi...
by reggilbert
27 Jan 2011, 12:49
Forum: Software
Topic: Acrobat Tips
Replies: 26
Views: 17311

Re: Acrobat Tips

i'm surprised to hear all these reports - i have ocr'd hundreds of books in Acrobat, many with 300+ images of two pages, the last hundred or so books with all scans in grayscale (which could potentially give rise to umpausewhat's neighboring-letter issue), and never experienced anything more than a ...
by reggilbert
25 Jan 2011, 23:23
Forum: Scanners and Build Threads
Topic: Linear slides for high load
Replies: 11
Views: 5698

Re: Linear slides for high load

From what I could see those seem awfully high priced, with too-small travels for even regular scanners, much less your larger one. Your keyboard drawer slides could simply be too weak -- keyboard drawers are intended to hold up the tiny floor of the keyboard drawer and a plastic keyboard, total of a...
by reggilbert
20 Jan 2011, 11:51
Forum: Software
Topic: Paragraph issues
Replies: 8
Views: 4175

Re: Paragraph issues

Presumably this is the Abbyy program translating the end of each line on the page as a "hard return," that is, the same as the end of a paragraph, rather than the "soft return" that word processors use to wrap lines that have reached the margin. Soft returns automatically move as the margin or font ...
by reggilbert
18 Jan 2011, 22:31
Forum: HELP
Topic: HOW TO COMPRESS PDF FILES
Replies: 14
Views: 10082

Re: HOW TO COMPRESS PDF FILES

What is the average size of the PDF file of the books scanned by you? My scanned a book of 700 pages is around 90 to 100 megas. Would decrease it? The following draws on flatbed experience but might help with camera-based scanning. The software that comes with my scanner permits a choice of several...
by reggilbert
18 Jan 2011, 22:20
Forum: Lighting
Topic: Let's talk about Lighting
Replies: 90
Views: 59034

Re: Let's talk about Lighting

What about these Cree R5s ? A DX commenter says they put out a maximum 440 lumens at 1.4 amps, vs. what I understand to be the maximum 228 lumens at 1.0 amps for the Q5s Daniel seems to be using (judging from photos earlier in this thread), at a cost of only a $1.65 more apiece. Would that mean that...
by reggilbert
16 Jan 2011, 13:10
Forum: Agora / The Marketplace
Topic: canon powershot A480s refurbished, $73 at best buy
Replies: 0
Views: 1682

canon powershot A480s refurbished, $73 at best buy

Red and blue are available and shipping and tax raise the total for two to $173. Pickup at local Best Buys was not available - that option must apply only to stocked items. This camera model is on the CHDK list and the SDM list . See the glossary thread in the Hardware forum if you are not familiar ...
by reggilbert
13 Jan 2011, 16:42
Forum: Show and Tell / Book Projects
Topic: Let's Make A DIY Book Scanner Test Chart
Replies: 32
Views: 39046

Re: Let's Make A DIY Book Scanner Test Chart

About the DPI, the pdf you uploaded doesn't seem big enough to be 600 dpi images True, but isn't that the idea behind compressed formats -- they store much smaller than they present? The source images were originally in jpeg format, which is a compressed format. The b&w image was a 1.1MB jpeg, but ...