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

2nd Gen - Glass platen, switch/power hub

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.
you1
Posts: 92
Joined: 04 Mar 2014, 00:53

2nd Gen - Glass platen, switch/power hub

Post by you1 » 19 Jul 2009, 09:18

Pics
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The structure is strong enough to hold the glass platen with on hand.
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Last edited by Anonymous on 19 Jul 2009, 11:09, edited 3 times in total.

you1
Posts: 92
Joined: 04 Mar 2014, 00:53

Re: 2nd Gen - Glass platen, switch/power hub

Post by you1 » 19 Jul 2009, 09:23

Some more pics
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Upside down view
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Lets take a closer look at vertex
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Last edited by Anonymous on 19 Jul 2009, 10:02, edited 1 time in total.

you1
Posts: 92
Joined: 04 Mar 2014, 00:53

Re: 2nd Gen - Glass platen, switch/power hub

Post by you1 » 19 Jul 2009, 09:33

More pics
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The handle and its button
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The way the handle wire is fished into the sandwich part of acrylic that pinches the glass
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This were the button wire terminates. The other end of the wire goes to my power/switch hub
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Last edited by Anonymous on 19 Jul 2009, 10:06, edited 1 time in total.

you1
Posts: 92
Joined: 04 Mar 2014, 00:53

Re: 2nd Gen - Glass platen, switch/power hub

Post by you1 » 19 Jul 2009, 09:44

More pics
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Camera base is permanently secured; the extensions can come off
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On my platen I have a long screw that flushes against this 3x3 peace of wood in order to keep every page centered
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The top of the scanner (lights), is removable
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Last edited by Anonymous on 19 Jul 2009, 10:10, edited 1 time in total.

you1
Posts: 92
Joined: 04 Mar 2014, 00:53

Re: 2nd Gen - Glass platen, switch/power hub

Post by you1 » 19 Jul 2009, 09:48

More pics
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My lights slide down onto camera extension bar.
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removable lights (top) mounted
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I'm not too sure about using acrylic to hold the camera; only time will tell.
My holes for the camera are 1/2" increments.
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you1
Posts: 92
Joined: 04 Mar 2014, 00:53

Re: 2nd Gen - Glass platen, switch/power hub

Post by you1 » 19 Jul 2009, 10:29

mo
Attachments
25.jpg
HUB - 1) powers the cameras, 2) USB switch hub, 3) specific left/right camera buttons, external switch that shoots both cameras. I'm using RJ11 (phone jack) for connecting camera power
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Power & USB connection
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USB side
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I've obviously have done a poor job :)
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This is my connection to external button (on platen) which triggers both cameras
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daniel_reetz
Posts: 2786
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E-book readers owned: Used to have a PRS-500
Number of books owned: 600
Country: United States
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Re: 2nd Gen - Glass platen, switch/power hub

Post by daniel_reetz » 19 Jul 2009, 10:43

Awesome buildup and documentation. How did you get such great cuts on your acrylic?

you1
Posts: 92
Joined: 04 Mar 2014, 00:53

Re: 2nd Gen - Glass platen, switch/power hub

Post by you1 » 19 Jul 2009, 10:49

This hub has the following benefits:
1) Powers the camera
2) You have a specific button trigger an individual (left or right) camera
3) You can connect or disconnect external button (convenient for store away)
4) Small - used a two jack external telephone housing

I don't know much about electronics, so proceed at your own risk. Hopefully, an electronic guru will tell us the dangers of this design. I got one year warranty for my cameras (so I feel like taking a risk : )

Little electronic thingies includes, an LED, one 100 ohm resistor (the picture show 100k, not 100), two NPN transistors
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The resistor is 100 ohms; the image is wrong - the color should be brown, black, red, and gold or silver.
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The resistor is 100 ohms; the image is wrong - the color should be brown, black, red, and gold or silver.
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Last edited by Anonymous on 19 Jul 2009, 11:21, edited 2 times in total.

you1
Posts: 92
Joined: 04 Mar 2014, 00:53

Re: 2nd Gen - Glass platen, switch/power hub

Post by you1 » 19 Jul 2009, 10:51

More pics
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you1
Posts: 92
Joined: 04 Mar 2014, 00:53

Re: 2nd Gen - Glass platen, switch/power hub

Post by you1 » 19 Jul 2009, 11:00

daniel_reetz wrote:Awesome buildup and documentation. How did you get such great cuts on your acrylic?
I had the local plastic dealer cut the acrylic to my dimensions, which :
8 1"X12" - these pinch the glass.
1 12"x12" triangle (cut a 12x12 square diagonally).
1 8"x8" triangle (other half of the square).
These dimensions fit perfectly for the 12"x16" glass that are available at home depot. .
I also got 5/8" screws, which are just the right length for pinching the glass.

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