Search found 464 matches
- 13 Jun 2010, 09:13
- Forum: Scanners and Build Threads
- Topic: auto page turner prototype
- Replies: 48
- Views: 73505
Re: auto page turner prototype
Ok, I use slides at the moment. I have two "platen slides towers" on each side of the platen so it can't wobble much. But I'm suspecting that I'd need a motor on each side. If I apply upward force only at the platen part attached to one slide then I get some friction at the other side. I a...
- 13 Jun 2010, 08:01
- Forum: Scanners and Build Threads
- Topic: auto page turner prototype
- Replies: 48
- Views: 73505
Re: auto page turner prototype
update: I'm stuck on moving the platen up/down. Mini servos powered by the Arduino board can't handle that even with counterweighting. Too much friction. I have salvaged some more powerful components from a printer but need to read up/"get adviced up" before proceeding. I made a post in th...
- 03 Jun 2010, 07:04
- Forum: Introductions and connections
- Topic: DIY Book Scanner Anniversary
- Replies: 5
- Views: 8174
Re: DIY Book Scanner Anniversary
Congrats!
- 13 May 2010, 14:47
- Forum: Scanners and Build Threads
- Topic: auto page turner prototype
- Replies: 48
- Views: 73505
Re: auto page turner prototype
univurshul: thank you! Tim: Right, moving the cradle will at least lessen the "page pile" height problem. I hope that can be enough but it needs testing. There's still need for some way to adjust the finger position given different sized books. Though that's only needed once for each book ...
- 09 May 2010, 08:54
- Forum: Scanners and Build Threads
- Topic: auto page turner prototype
- Replies: 48
- Views: 73505
Re: auto page turner prototype
Klaus, thanks, very helpful feedback! I hadn't thought at all about some of those things. Still, I'll start by just ordering a Arduino kit and some RC servos and see how far that takes me. With the stepping motor as a fallback solution. Here's how I'm thinking: - I realized I can add a platen counte...
- 08 May 2010, 16:55
- Forum: Scanners and Build Threads
- Topic: auto page turner prototype
- Replies: 48
- Views: 73505
Re: auto page turner prototype
Cool, my hand is on youtube! :) Klaus: Thank you. So this would be a good buy then, right? http://www.arduino.cc/en/Main/ArduinoBoardDuemilanove Yes, the small finger needs almost no force. Searching now I see tiny RC servos for as little as 4$ , like this . I'll get one and test it. Full automation...
- 07 May 2010, 18:09
- Forum: Scanners and Build Threads
- Topic: auto page turner prototype
- Replies: 48
- Views: 73505
Re: auto page turner prototype
Sure, post away Daniel! :-) I'd be honored to see it there. I hereby stamp a CC by-nc-sa license on it. Brief explanation of some parts: Yes, the "big finger" joint is just electric tape and a piece of plastic tube. The tube slows the downward movement of the finger. Without that it fell d...
- 07 May 2010, 07:32
- Forum: Scanners and Build Threads
- Topic: auto page turner prototype
- Replies: 48
- Views: 73505
auto page turner prototype
a.jpg See attached video (zipped .mkv since upload form didn't allow mkv). The "big finger" is a rubber eraser. The "small finger" is a thick drinking straw. To use a double platen you'd need two (properly timed) forces. Reliable finger action is a challenge but the device now p...
- 23 Apr 2010, 12:51
- Forum: Scanners and Build Threads
- Topic: super leightweight, super cheap, uncomplicated book scanner
- Replies: 15
- Views: 29076
Re: super leightweight, super cheap, uncomplicated book scan
Nice! I like the direct computer connection, bypassing the need for memory card and for a separately powered trigger. I'd like to see a video of this in operation though. The platen seems tricky to handle. Some other ideas: Have you thought about adding lockable joints to the now duct taped platen e...
- 20 Apr 2010, 17:37
- Forum: Scan Tailor
- Topic: Scan Tailor
- Replies: 357
- Views: 370344
Re: Scan Tailor
I've recently used Scan Tailor on multiple documents with only a few (~10) pages each. Each pack of tiff's outputted is then used to make an OCR'ed djvu file. I speed up the work process by using two instances of Scan Tailor simultaneously, each processing a separate document. Here are some changes ...