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 daniel_reetz
11 Nov 2017, 20:15
Forum: Introductions and connections
Topic: Hello Everyone, Greetings
Replies: 1
Views: 4822

Re: Hello Everyone, Greetings

Greets and welcome!
by daniel_reetz
11 Nov 2017, 20:00
Forum: Lighting
Topic: Flat fields to correct for uneven illumination -- has anyone tried this?
Replies: 3
Views: 6332

Re: Flat fields to correct for uneven illumination -- has anyone tried this?

Yeah, in the very first scanner, Aaron Clarke and I would take a picture of a blank piece of paper, and then subtract the inverse of that from the page image. It works, as long as your cameras have fixed settings and the camera-platen relationship doesn't change. If it changes at all, you need a new...
by daniel_reetz
11 Nov 2017, 19:56
Forum: Scanners and Build Threads
Topic: a small story for my scanner
Replies: 61
Views: 40126

Re: a small story for my scanner

It's always great to see examples of people going through the full process like this.
by daniel_reetz
11 Nov 2017, 19:54
Forum: Scanners and Build Threads
Topic: Archivar - wooden scanner based on Archivist
Replies: 23
Views: 18543

Re: Archivar - wooden scanner based on Archivist

Paperback mode is, i think, a term danielreetz brought up. It was intended to help scanning paperbacks which accidentally close whenever the cradle is lowered. One can turn the whole Image-Module upside-down to have the glass pointing upwards. That enables you to take paperbacks and scan them face-...
by daniel_reetz
05 Oct 2017, 22:32
Forum: Scanners and Build Threads
Topic: Archivar - wooden scanner based on Archivist
Replies: 23
Views: 18543

Re: Archivar - wooden scanner based on Archivist

Congratulations on your design and the release of your scanners!

I've never heard of tool balancers before - they look like the perfect solution to the weight issue. Like you said, I can see them applied to many different things.

What's your web address?
by daniel_reetz
18 Sep 2017, 12:45
Forum: Scanners and Build Threads
Topic: Which one is better? Platen's angle 100 or 90 degree?
Replies: 30
Views: 12296

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

I think you'll have a real problem containing the light to just one of the platen panes. This is the problem, as I see it. But it's still worth trying. A simple way to test the idea (if you have the gear) is to set up a digital projector (like a pico projector) and display an all-white image. Then ...
by daniel_reetz
13 Aug 2017, 10:19
Forum: Scanners and Build Threads
Topic: The "Non-Destructive Guillotine" ("NDG") Scanner
Replies: 7
Views: 12225

Re: The "Non-Destructive Guillotine" ("NDG") Scanner

Good to see you 'round these parts, jlev!
by daniel_reetz
13 Aug 2017, 10:14
Forum: Scanners and Build Threads
Topic: a small story for my scanner
Replies: 61
Views: 40126

Re: a small story for my scanner

Great work. It's great to hear that this project helped introduce you to new technologies and making things. That's what it's all about.
by daniel_reetz
13 Aug 2017, 10:10
Forum: Scanners and Build Threads
Topic: Original ~600pg/hr, very portable scanner now achieving ~900pg-1100pg/hr
Replies: 100
Views: 89039

Re: Original ~600pg/hr, very portable scanner now achieving ~900pg-1100pg/hr

Great work on this design Mohib. As I mentioned in the other scanner inspired by your scanner, I think the elastomeric page retainer idea is really cool.
by daniel_reetz
13 Aug 2017, 10:07
Forum: Scanners and Build Threads
Topic: diy zinescanner arnhem
Replies: 7
Views: 3367

Re: diy zinescanner arnhem

Wow, the front loading idea is really cool! Auto switches were something that came up a lot in the past. The idea was that if you put the cradle down (on a more "traditional" design), you could press the switch with the downward motion. At least in the scanning operations I worked with, most scannin...