You could drill holes and put in some threaded rod to push against the sides, rather than the bottom... It would also be interesting to have some kind of mechanism where you crank the handle and both sides contract or separate together.
Anyway, I agree with jradi. There's a saying in software, "Always plan on building another." I think it applies to DIY stuff like this!
--Rob
My first book scanner.
Moderator: peterZ
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rob
- Posts: 773
- Joined: 03 Jun 2009, 13:50
- E-book readers owned: iRex iLiad, Kindle 2
- Number of books owned: 4000
- Country: United States
- Location: Maryland, United States
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Re: My first book scanner.
The Singularity is Near. ~ http://halfbakedmaker.org ~ Follow me as I build the world's first all-mechanical steam-powered computer.
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IcantRead
- Posts: 95
- Joined: 17 Sep 2009, 02:56
- Number of books owned: 0
- Country: United States
- Location: Arizona
Re: My first book scanner.
I finally got time to build my book scanner I should have some photos up later today.
Re: My first book scanner.
Would be nice to use both hands to move pages.
Perhaps a foot treadle to lift the platen, a shutter release at the other foot?
Perhaps a foot treadle to lift the platen, a shutter release at the other foot?
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DSpider
Re: My first book scanner.
Props for the awesome graphics and for the cradle design. But wouldn't a... simpler approach be better ?
In my opinion, as long as the page(s) are kept flat and the camera steady, the mechanical part isn't nearly as important as the camera.
Speaking of which, what brand and model are you planning on using ?
Edit: I'm asking because I'm also having a hard time finding one that:
- is USB powered (well, as long as it's not using AA batteries. Powered by an AC adaptor is also fine)
- can be triggered by USB (if not by external remote at least by keyboard)
In my opinion, as long as the page(s) are kept flat and the camera steady, the mechanical part isn't nearly as important as the camera.
Speaking of which, what brand and model are you planning on using ?
Edit: I'm asking because I'm also having a hard time finding one that:
- is USB powered (well, as long as it's not using AA batteries. Powered by an AC adaptor is also fine)
- can be triggered by USB (if not by external remote at least by keyboard)
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DDavid
Re: My first book scanner.
I have 1/2 of a cradle like this on my kitchen floor and will finish it
tomorrow.
The design for this scanner seems to be using glass glued to the moving
parts. I'm thinking that a lot of stress seems to be concentrated on the glue
joint to the glass and the glass itself. If using acrylic with screws that would
not be as much of an issue.
Just thoughts from someone who has not finished a scanner yet.
tomorrow.
The design for this scanner seems to be using glass glued to the moving
parts. I'm thinking that a lot of stress seems to be concentrated on the glue
joint to the glass and the glass itself. If using acrylic with screws that would
not be as much of an issue.
Just thoughts from someone who has not finished a scanner yet.
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IcantRead
- Posts: 95
- Joined: 17 Sep 2009, 02:56
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- Country: United States
- Location: Arizona
Re: My first book scanner.
Sorry i haven't posted in awhile i have been trying to finish up the scanner before school starts up again.
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IcantRead
- Posts: 95
- Joined: 17 Sep 2009, 02:56
- Number of books owned: 0
- Country: United States
- Location: Arizona
Re: My first book scanner.
I am having a little trouble making the spine support because my drill press needs calibration. I'm just going to construct it a different way.
Ok to answer some questions. The reason i went with the bar in the front is because i want to eventually make it automated. Also i could have made the book supports on a plate to side, but i wanted them on drawer slides so that the glass would alway be in the same place. With the glass in the same place then the cameras never need to be adjusted (well in theory, we'll see if it works ).
I'm not sure what cameras i'm using. I have been looking for web cams because they could be controlled with the computer and it would make life a lot easier, but with more and more research i have found that web cams that are said to be 8mp is in actuality really really crappy. I still may buy one and see. I do have some really good cameras that i have access to but they are not hackable. I was thinking about using a arduino board and a solenoid to push the capture button. We will see if i can rig something up.
Ok to answer some questions. The reason i went with the bar in the front is because i want to eventually make it automated. Also i could have made the book supports on a plate to side, but i wanted them on drawer slides so that the glass would alway be in the same place. With the glass in the same place then the cameras never need to be adjusted (well in theory, we'll see if it works ).
I'm not sure what cameras i'm using. I have been looking for web cams because they could be controlled with the computer and it would make life a lot easier, but with more and more research i have found that web cams that are said to be 8mp is in actuality really really crappy. I still may buy one and see. I do have some really good cameras that i have access to but they are not hackable. I was thinking about using a arduino board and a solenoid to push the capture button. We will see if i can rig something up.
Re: My first book scanner.
Great design! This one has completely changed what I had in mind to build. Would you be so kind as to tell me where to buy and what kind of sliding rails you're using on the horizonal base and vertical platen support? I have searched all over ebay and Home depot but all I can find are the rails with wheels...which would be fine for the base but not so good when mounted vertically. Thanks!
DJ
DJ
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IcantRead
- Posts: 95
- Joined: 17 Sep 2009, 02:56
- Number of books owned: 0
- Country: United States
- Location: Arizona
Re: My first book scanner.
I got mine from homedepot, but they were not online unless you have a local store selected. They are 14 inch 100 lb full extension, I cant remember the brand. I think they ran me $14. Also, I plan on posting my plans on here after I have got everything finished, and worked out the kinks. But you may not want to wait that long, I take a long time to do anything.
Re: My first book scanner.
Wow- can't believe I missed it. Made a trip before work this morning and it was right next to the one I picked up. Thanks!