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 12 matches

by tosborn
30 Jan 2012, 17:21
Forum: Scanners and Build Threads
Topic: Monson's Servo Auto Scanner
Replies: 106
Views: 91130

Re: Monson's Servo Auto Scanner

Truly awesome. A couple of questions. First, have you thought about a way for it to autodetect the end of the book so that you could start it and then leave it unattended and it would shut off on its own? Second, is it currently adjustable to books of different sizes? For example, would it work now ...
by tosborn
05 Oct 2011, 22:58
Forum: Scanners and Build Threads
Topic: A DIY Book Scanner In Every Hackerspace /DIY Kit
Replies: 399
Views: 341118

Re: A DIY Book Scanner In Every Hackerspace /DIY Kit

Rob:

In terms of camera height adjustment I was just thinking in terms of a 12"x9" book versus a 6"x4" book. For the smaller book, wouldn't it be advantageous to be be able to lower the height of the camera so that you could zoom in more capturing the text at a higher resolution?

Tim
by tosborn
05 Oct 2011, 17:10
Forum: Scanners and Build Threads
Topic: A DIY Book Scanner In Every Hackerspace /DIY Kit
Replies: 399
Views: 341118

Re: A DIY Book Scanner In Every Hackerspace /DIY Kit

Daniel:

Could you comment on the potential for camera adjustment in this design. For example, it appears that camera height isn't adjustable.
by tosborn
28 Sep 2011, 21:34
Forum: Scanners and Build Threads
Topic: Monson's Servo Auto Scanner
Replies: 106
Views: 91130

Re: Monson's Servo Auto Scanner

Very impressive. I wonder how the servo's connected to the v-shaped page hold-downs know when to stop when pressing down? If they just kept pressing down wouldn't the servo burn out after a while?
by tosborn
24 Sep 2011, 14:55
Forum: Cameras and Electronics
Topic: Canon a590IS ?
Replies: 4
Views: 2948

Re: Canon a590IS ?

"IS" means image stabilization. So the a590IS presumably compensates for camera shake when shooting at "low shutter speeds". For fixed camera positioning, as in book scanning, I doubt that the "IS" would be all that useful particularly if you shoot with a lot of light.
by tosborn
18 Sep 2011, 15:15
Forum: Show and Tell / Book Projects
Topic: Daniel Speaking At Open Hardware Summit 2011 - watch live.
Replies: 47
Views: 35048

Re: Daniel Speaking At Open Hardware Summit 2011 - watch liv

A good video copy of Daniel's presentation is now available here....http://vimeo.com/29184137. Thanks Adafruit!
by tosborn
06 Sep 2011, 00:05
Forum: Help with this site
Topic: Can you check if this site works, please?
Replies: 7
Views: 13664

Re: Can you check if this site works, please?

It works for me now.

Tim
by tosborn
05 Sep 2011, 21:56
Forum: Help with this site
Topic: Can you check if this site works, please?
Replies: 7
Views: 13664

Re: Can you check if this site works, please?

I just get a blank white page. I'm using Firefox under Windows 7 64-bit.

Tim
by tosborn
25 Jul 2011, 00:22
Forum: Lighting
Topic: Need help with light
Replies: 10
Views: 9330

Re: Need help with light

How did you come up with 24vdc? A Cree Q5 at 1000ma has a forward voltage of 3.7 volts. So 4 Q5's would require 14.8 volts, plus 2 volts for the buckpuck, would equal 16.8 volts. So wouldn't an 18vdc source be plenty?