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 rob
11 May 2012, 23:28
Forum: Scanners and Build Threads
Topic: Daniel's Work Thread: Toward a Hackerspace Scanner
Replies: 215
Views: 131455

Re: Daniel's Work Thread: Toward a Hackerspace Scanner

I really like the idea of clamp strips. Maybe like two 4x4 sheets that you've milled out to be pocketed everywhere except where there is a slot, and to be completely milled through where there is a tab (although milling that much material will be a big pain!). Then you just slap this thing on top, k...
by rob
11 May 2012, 08:33
Forum: Scanners and Build Threads
Topic: Daniel's Work Thread: Toward a Hackerspace Scanner
Replies: 215
Views: 131455

Re: Daniel's Work Thread: Toward a Hackerspace Scanner

That might work with the larger pieces, but definitely not with the smaller pieces, which will get chewed up by the bit. The smaller pieces are also liable to get pulled by the bit so that when there's only one tab left, the piece shears off at the tab, causing damage. If you could get it to work so...
by rob
10 May 2012, 21:04
Forum: Scanners and Build Threads
Topic: A Scanner for books with text VERY close to the gutter.
Replies: 22
Views: 28762

Re: A Scanner for books with text VERY close to the gutter.

That is awesome! How long did it take you to train FineReader for this? The reason I ask is that I tried training FineReader for an English-Latin dictionary that had accented characters plus greek letters, and after going through several pages of long and boring work, the thing couldn't tell the dif...
by rob
09 May 2012, 13:00
Forum: Chat
Topic: Articles on futurespotting
Replies: 1
Views: 6500

Re: Articles on futurespotting

Good articles, thanks for the pointers!
by rob
09 May 2012, 12:50
Forum: Scanners and Build Threads
Topic: Daniel's Work Thread: Toward a Hackerspace Scanner
Replies: 215
Views: 131455

Re: Daniel's Work Thread: Toward a Hackerspace Scanner

The cut was perfect, except that I dulled my bit by driving it into one of my brass screws. But that's no big deal. I got so frustrated with material thickness issues that I made a modification to the design, I think it was suggested a long time ago. Basically I just spec'd the slots to .5". They c...
by rob
07 May 2012, 10:04
Forum: Scanners and Build Threads
Topic: Daniel's Work Thread: Toward a Hackerspace Scanner
Replies: 215
Views: 131455

Re: Daniel's Work Thread: Toward a Hackerspace Scanner

Climb for wood is horrible based on my own experience. The bit deflects like it's made out of wet noodle, and it also tends to move the part if it isn't very securely fastened. I think it's harder on the bit, and it also requires a machine that has no flex. The only thing going for it, as far as I k...
by rob
04 May 2012, 11:28
Forum: Scanners and Build Threads
Topic: Self-Adjusting Spine Support
Replies: 103
Views: 67836

Re: Self-Adjusting Spine Support

Here's my first shot at a PDF:
by rob
03 May 2012, 13:24
Forum: Scanners and Build Threads
Topic: Self-Adjusting Spine Support
Replies: 103
Views: 67836

Re: Self-Adjusting Spine Support

bonesgeorge, just a quick correction in terminology. The platen is the glass. The entire thing that holds the book is the cradle, and we've been calling the sides of the cradle "wings". Wow, some very interesting design improvements indeed. Bonesgeorge, how does your new cradle account for books wit...
by rob
28 Apr 2012, 21:52
Forum: Scanners and Build Threads
Topic: Self-Adjusting Spine Support
Replies: 103
Views: 67836

Re: Self-Adjusting Spine Support

Oh, I see the principle involved in the mechanism, so I don't need to have it sent to me :) I'll just design the parts and cut them. Although I may not be able to do it for a while, since the recovery from the NextFab disaster has really released a lot of pent-up demand for the ShopBot!
by rob
28 Apr 2012, 21:18
Forum: Scanners and Build Threads
Topic: Daniel's Work Thread: Toward a Hackerspace Scanner
Replies: 215
Views: 131455

Re: Daniel's Work Thread: Toward a Hackerspace Scanner

I measured the same parts you did on the run I did today. In my file, the outside cut is 1.4982", and the inside cut is 1.4990". The outside cut measured 1.4990" (difference +0.0008") , and the inside cut measured 1.5075" (difference +0.0085"). Both cuts are in the Y direction. Clearly since inside ...