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

Search found 10 matches

by kifty
26 May 2014, 21:10
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

Does all of the confuguration information that is generated when you run "spread configure" end up in config.yaml? I noticed there doesn't seem to be any kind of "autofocus" switch in there.
by kifty
26 May 2014, 16:51
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

Hmmm... spomwii's photos may be focusing correctly, but mine definitely aren't, at least not consistently. Any ideas about what might be causing this? I need to pack up the kit for the conference on Wednesday, and I'd like to show off something OCR-able. Can I go into CHDK and force autofocus off so...
by kifty
22 May 2014, 15:33
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

OK, other than the focusing issue, I think pretty much everything is working. I've gotten Internet Connection Sharing to work on my Mac laptop, so I can control the RPi directly via an ethernet patch cable. I assume I can't control it via my phone without some fancy port forwarding or something, but...
by kifty
21 May 2014, 13:14
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

I'm not sure how to tell if it's autofocusing or not. It doesn't seem to refocus between each shot, only when I go to the gear menu. I don't seem to see a lot of difference when I change the focus distance: it's either completely out-of-focus or relatively clear. I'll uncheck the "hidtrigger" plugin...
by kifty
20 May 2014, 15:52
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

OK. Everything is hooked up and communicating to each other. The main issue have now is getting the cameras to focus properly. Right now, my settings are: Resolution: 300 Focus distance: 350 ISO: 80 Shutter speed: 1/60 Zoom level: 21 The focus seems to be quite unreliable, though. Sometimes it looks...
by kifty
19 May 2014, 19:01
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

Daniel, your guess was correct. One of the SD cards was working fine, but the other one was corrupt for some reason. I cloned the working one (changing OWN.TXT), and now things appear to be working! Thanks for your help. I have all the bits and pieces at home, so tomorrow I'll bring it all to the of...
by kifty
18 May 2014, 02:32
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

Hi Daniel, I didn't realize the OWN.TXT files were required, so I'll add those tomorrow when I try again. The CHDK logos are showing up, and I'm leaving the cameras alone after I turn them on. I looked for the IP address on the cameras, but didn't see anything. I found out the IP address by logging ...
by kifty
17 May 2014, 23:53
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

Hi Mark, I've finally gotten an ethernet connection working so that I can ssh in to the Raspberry Pi. (I only have Wi-Fi in my apartment, so I had to hack a client bridge out of an old router I had laying around.) Now that I can connect up and everything, it seems that SpreadsPi doesn't recognize my...
by kifty
06 May 2014, 13:32
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

OK, I have all the requisite pieces, but the "latest image" link is still broken. I grabbed the most recent image from buildbot (Apr 24) to play with, but if you have a more recent one, that would be great.

Thanks,
~Jonathan
by kifty
29 Apr 2014, 19:28
Forum: Spreads and SpreadPi
Topic: SpreadPi: The new DIY Book Scanner control system.
Replies: 47
Views: 43478

Re: SpreadPi: The new DIY Book Scanner control system.

This is so fantastic. I've been daydreaming about the potential for Raspberry Pi + Spreads + DIY Scanner, and you guys went ahead and did it! I just picked up two A1400s and I'll let you know how it goes.

Jonathan Kift, Production Librarian, NNELS (nnels.ca)