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 3 matches

by powercircuits
13 Apr 2015, 13:06
Forum: Cameras and Electronics
Topic: Camera Triggering
Replies: 42
Views: 75743

Re: Camera Triggering

http://labjack.com/ offers very nice data acquisition and control modules that I use all the time. They are a bit overkill for triggering a camera, but will work very well. You can write sophisticated programs for them in python, java, matlab, labview, pretty much any software language. You can also...
by powercircuits
21 Feb 2015, 01:00
Forum: Lighting
Topic: unwanted reflections from lightsource
Replies: 7
Views: 10903

Re: unwanted reflections from lightsource

Glare off of smooth glass is all about angles. The light will bounce directly off the glass into the camera in a straight line. You need to shift the light source, glass, or camera around so there is not a direct line of sight between them. For example if the glass were horizontal with the camera di...
by powercircuits
15 Feb 2015, 15:55
Forum: Cameras and Electronics
Topic: Avoid blurry corners
Replies: 7
Views: 5595

Re: Avoid blurry corners

A camera can only focus over a certain range of distances at once. This is known as the 'depth of field'. Since the center of the page will be closer to the lens than the corners, you need enough depth of field to allow both to be in focus at the same time. In general, a lens with a smaller aperture...