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 cratylus
24 Feb 2010, 21:53
Forum: Scanners and Build Threads
Topic: My first book scanner.
Replies: 66
Views: 47705

Re: My first book scanner.

I have only B&D Jigsaw and hope to have my panel cut in Lowe's, where they do it for free). Ahh, fear not! You can make your own jigsaw guide from scraps. Just screw one straight piece to a wider one and cut away the waste. Now you can line up the guide on your cut line. It'll work in a pinch. Jigs...
by cratylus
23 Feb 2010, 17:21
Forum: Scanners and Build Threads
Topic: My first book scanner.
Replies: 66
Views: 47705

Re: My first book scanner.

Now that I have built it I want to change a few things. Right! It looks like our platen designs are very similar. I had good luck with 1/2" MDF with a 1/4" rabbet and 5 min. epoxy. You used Gorilla Glue? And it bonds pretty stiff? (I used a rabbet to "bury" the leading edge of the glass to limit an...
by cratylus
22 Feb 2010, 15:21
Forum: Scanners and Build Threads
Topic: Beta Build
Replies: 27
Views: 28028

Re: Beta Build

Another thought: since your platen comes straight down, you could use it to trigger the cameras. Put a half-second delay in software (I assume you can do something like that; I haven't taken the software apart yet) and your action is reduced to: tromp change the page release repeat I like this. I t...
by cratylus
07 Feb 2010, 16:57
Forum: Scanners and Build Threads
Topic: Parts V2
Replies: 2
Views: 2449

Re: Parts V2

I think we're thinking along the same lines. I posted a "instructions-esque" PDF today that might be of interest... http://www.diybookscanner.org/forum/viewtopic.php?f=1&t=274 It's only 4 pages of content, but I think it's enough to get the ball rolling for even a non-mechanic. And the last page inc...
by cratylus
07 Feb 2010, 16:34
Forum: Scanners and Build Threads
Topic: Beta Build
Replies: 27
Views: 28028

Re: Beta Build

Some thoughts from my build that may or may not be helpful... PVC can be drilled and tapped. With that in mind, you might be able to simplify the slider assembly by directly threading a bolt through the platen side and to the slider (and thus getting rid of the 'u'-shaped brackets). However, I don't...
by cratylus
07 Feb 2010, 15:11
Forum: Chat
Topic: Looking for a couch in Cambridge, MA -- March 23rd
Replies: 4
Views: 3697

Re: Looking for a couch in Cambridge, MA -- March 23rd

Well, I'm north of Boston. I go in and out every day by train and it's not too bad... about 50 minutes from my door to North Station. From there, you're only a subway ride away from Harvard. Hopefully you can do better, but if not, I've got a couch and a spare mattress. I've also got a friend on Bea...
by cratylus
07 Feb 2010, 14:09
Forum: Scanners and Build Threads
Topic: Beta Build
Replies: 27
Views: 28028

Re: Beta Build

UPDATED Hi all, I've now spend the last week with the scanner and I can offer these observations. Sliding action works quite well, although I have nothing to compare it to. That said, it will twist in such a way as to make it difficult to raise if you grab it the wrong way. And that said, it's quit...
by cratylus
03 Feb 2010, 18:18
Forum: Scanners and Build Threads
Topic: Beta Build
Replies: 27
Views: 28028

Re: Beta Build

Hey Dan, Thanks for the props. It's still a work in progress, but I'm happy overall. The travel on the PVC is quite smooth, especially with the spring-assist. It's funny you ask, because I've been waiting for an application for the curious properties of 1" and 1 1/4" PVC for 15 years! In highschool ...
by cratylus
02 Feb 2010, 00:11
Forum: Scanners and Build Threads
Topic: Beta Build
Replies: 27
Views: 28028

Re: Beta Build

I've included a processed page that I sent through a set of recorded Photoshop "actions"... B/W, crop, contrast and exposure adjustments. It was a handheld shot, but I think it looks promising. Maybe tomorrow I can upload my Sketchup modeling efforts if there's any interest. Test Page_BW_CROP_AC_EXP...
by cratylus
01 Feb 2010, 23:44
Forum: Scanners and Build Threads
Topic: Beta Build
Replies: 27
Views: 28028

Beta Build

Hi all, First an introduction... I found this forum a few months ago and was happy to find a community of like-minded DIY-ers. I started scanning books a few years ago with much the same motivation as Daniel... back in school, little money, long commute. Well, after a few failed experiement (most no...