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jck57's Automatic Scanner Build

Built a scanner? Started to build a scanner? Record your progress here. Doesn't need to be a whole scanner - triggers and other parts are fine. Commercial scanners are fine too.
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rob
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Re: jck57's Automatic Scanner Build

Post by rob »

What a smooth and mesmerizing contraption! Great job, and thanks for detailing the construction.
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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jck57
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Re: jck57's Automatic Scanner Build

Post by jck57 »

Scrapped platen design because I couldn't get enough air flow through 1/4" OD vacuum line. New platen assembly is based on vacuum-box work by Aegre Reminiscens:
http://www.diybookscanner.org/forum/vie ... ?f=1&t=588
Glass panes are secured with clamps made from aluminium extrusion scraps and angle. Lighting is 4 crees + buck puck based on work by Ryan_phx and daniel_reetz:
http://www.diybookscanner.org/forum/vie ... 6&start=50

Small rectangular panes of glass fit into router-cut recesses under sliding camera holders.
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jck57
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Re: jck57's Automatic Scanner Build

Post by jck57 »

Auto pager turner test. LED's are dimmed by applying 5V from Arduino through 800 ohm resistor to Buckpuck CTL wire. Obviously this gadget needs work on picking and flipping one page at a time.

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daniel_reetz
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Re: jck57's Automatic Scanner Build

Post by daniel_reetz »

HOly crap! This thing is amazing! Do you mind saying where you're based? If I ever get to where you are, I would LOVE to see this in person. Seriously cool!!!
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jck57
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Re: jck57's Automatic Scanner Build

Post by jck57 »

daniel_reetz wrote:HOly crap! This thing is amazing! Do you mind saying where you're based? If I ever get to where you are, I would LOVE to see this in person. Seriously cool!!!
Thanks, Dan. Just sent a PM with my secret coordinates. Drop in for a cold beverage and help brainstorm this mutha.
aeturneus
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Re: jck57's Automatic Scanner Build

Post by aeturneus »

This is really exciting to see. Exciting enough for me to finally stop lurking!

Would a counter-pulse of air on the outside of the platen work to keep additional pages from getting pulled up?

It doesn't have to be perfect - even the commercial scanners aren't perfect at turning pages. If you can achieve high enough accuracy, double pages could be detected with real-time OCR of page numbers or something like that, and the machine could be reset when it skips. One person could thereby operate several machines simultaneously, which would obviously be a massive improvement over the current DIY technology for any large digitization projects.
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jck57
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Re: jck57's Automatic Scanner Build

Post by jck57 »

aeturneus wrote:
Would a counter-pulse of air on the outside of the platen work to keep additional pages from getting pulled up?
Not sure what you mean. Can you explain some more?

Thanks.
le.gentleman

Re: jck57's Automatic Scanner Build

Post by le.gentleman »

Wow, that looks really great! I look forward to the end result.
the.traveller
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Re: jck57's Automatic Scanner Build

Post by the.traveller »

This looks very very professional. I think I will steal some of the design from you.
The way you have the lights centered to achieve high light intensity is very good for taking pictures, I think.
It looks now more like a commercial scanner. Incredible.

When you have the time could you make diagrams for the wiring and a shopping list of the materials used'?

So I can go for shopping here in europe.

Amazing what people get for free looking around at their working place.
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rob
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E-book readers owned: iRex iLiad, Kindle 2
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Re: jck57's Automatic Scanner Build

Post by rob »

jck57 wrote:
aeturneus wrote:
Would a counter-pulse of air on the outside of the platen work to keep additional pages from getting pulled up?
Not sure what you mean. Can you explain some more?

Thanks.
What you do is project a blast of air at the pages when you vacuum them up. It is not strong enough to overcome the force of the vacuum, but it is strong enough to peel away the other pages. The only problem you'd come up against is if the page is sufficiently porous that it lets through too much vacuum. But you look like someone handy with pneumatics :)
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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