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 dpc
08 Aug 2017, 15:01
Forum: Scanners and Build Threads
Topic: Which one is better? Platen's angle 100 or 90 degree?
Replies: 30
Views: 12225

Re: Which one is better? Platen's angle 100 or 90 degree?

Could you instead of raising the height of the light source, simply put a shade or baffle between the light source and the books so that light falls only on the pages? The problem isn't that the light hits the the "outer" portion of the platen that isn't covering the actual page (you can zoom-in wi...
by dpc
13 Jul 2017, 20:03
Forum: Show and Tell / Book Projects
Topic: Hello from Daniel (July 2017)
Replies: 4
Views: 5757

Re: Hello from Daniel (July 2017)

Good to hear from you Dan! Looking fwd to seeing some of the things you've been up to. Anything you can discuss here or is it all hush-hush?
by dpc
10 Jul 2017, 20:26
Forum: Scanners and Build Threads
Topic: Which one is better? Platen's angle 100 or 90 degree?
Replies: 30
Views: 12225

Re: Which one is better? Platen's angle 100 or 90 degree?

Ugh. Just realized that Daniel's videos are no longer available (or it's some Adobe Flash thing that Windows 10 can't view). That would certainly make it hard for you to understand the adjacent platen pane reflection problem when using 90 degrees. I'll see if I can come up with a few images to help ...
by dpc
10 Jul 2017, 20:08
Forum: Scanners and Build Threads
Topic: Which one is better? Platen's angle 100 or 90 degree?
Replies: 30
Views: 12225

Re: Which one is better? Platen's angle 100 or 90 degree?

According to your saying, is it better to use 90 degree angle because we can make a scanner shorter ( distance between platen and lamp)and save money? More farther, less lighter? Even though bigger angle can get more bright I have to move a light farther. More bright compensate will be reduced in a...
by dpc
10 Jul 2017, 15:22
Forum: Scanners and Build Threads
Topic: Which one is better? Platen's angle 100 or 90 degree?
Replies: 30
Views: 12225

Re: Which one is better? Platen's angle 110 or 90 degree?

At 90 degrees the camera can see a reflection off of the adjacent platen pane. As you increase the angle between the two platen panes you can eliminate this effect. The amount you have to increase the angle depends on the field of view of the camera and this itself depends on the distance of the cam...
by dpc
30 Jun 2017, 14:30
Forum: Scanners and Build Threads
Topic: My 2nd new book scanner!
Replies: 10
Views: 5503

Re: My 2nd new book scanner!

If you're using a lightweight camera like a smartphone, why wouldn't you just mount the camera to the platen and then get rid of that tubing and camera mount hardware?

If you did this, you won't have to worry about moving/shifting books or changing scale factors at all.
by dpc
25 Jun 2017, 13:54
Forum: Cameras and Electronics
Topic: usb remote with HTC USB Splitter
Replies: 22
Views: 10655

Re: usb remote with HTC USB Splitter

missed you here do you mean that it show the image from the lcd screen in tv if and only if camera review the images. Yes. The camera must be in Playback mode (power off, press 'Play' button, lens does not open/extract, last photo taken shown on LCD) to output video to an external display over the ...
by dpc
24 Jun 2017, 19:55
Forum: Cameras and Electronics
Topic: usb remote with HTC USB Splitter
Replies: 22
Views: 10655

Re: usb remote with HTC USB Splitter

Does your Canon camera support Live View over the video cable to an external display when you're photographing pages? I borrowed an Elph 160 and my splitter cable only outputs video when the camera is in Playback Mode (not Live View). From what I've been able to find out online, this is expected beh...
by dpc
23 Jun 2017, 20:08
Forum: Cameras and Electronics
Topic: usb remote with HTC USB Splitter
Replies: 22
Views: 10655

Re: usb remote with HTC USB Splitter

This is what I did: cut wire 4 cut wires 5-11 connect wire 5 (BLK) to S connect blue wire, red wire, and all grounds (shield) from the RCA A/V cable together connect purple wire to VIDEO+ on RCA A/V cable connect orange wire to AUDIO_LEFT+ on RCA A/V cable connect yellow wire to AUDIO_RIGHT+ on RCA ...
by dpc
22 Jun 2017, 12:19
Forum: Cameras and Electronics
Topic: usb remote with HTC USB Splitter
Replies: 22
Views: 10655

Re: usb remote with HTC USB Splitter

That is odd. The manual showed a separate port for an A/V composite connector on the A3300. Double check to see if that exists. If so, you should be able to plug in an A/V composite-to-element cable as well as USB at the same time. ... Hi Jonathon, The A3300 User Manual (PDF) mentions that this cam...