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 duerig
29 May 2019, 17:13
Forum: Introductions and connections
Topic: Hello and can I get a DXF file and parts list
Replies: 2
Views: 207

Re: Hello and can I get a DXF file and parts list

I'd recommend that you read through the entire set of documents on the Archivist scanner here: http://diybookscanner.org/archivist/ This includes links to all the design files and descriptions of all the parts necessary. The DXF design files themselves are linked from there as well. Just go to the b...
by duerig
14 May 2019, 14:15
Forum: Programs, Software releases, and more.
Topic: Pi Scan speed?
Replies: 2
Views: 417

Re: Pi Scan speed?

You should expect about 4 seconds per cycle which is roughly the same speed at which you can safely turn the page when you are in a rhythm. However, the exact speed will depend on the external storage (thumb drive in the case of the video), the quality of the camera (higher end cameras produce large...
by duerig
22 Mar 2019, 09:38
Forum: Lighting
Topic: Using SORAA Snap System Beam Spreader - Uneven Lighting
Replies: 18
Views: 963

Re: Using SORAA Snap System Beam Spreader - Uneven Lighting

The secondary reflection from the other side is only completely absent at 180 degrees (flat platen). As you decrease the platen angle more and more, the secondary reflection will slowly spread from the gutter side and eventually if you had a 0 degree angle (completely parallel), you would see a comp...
by duerig
14 Mar 2019, 20:47
Forum: Lighting
Topic: Using SORAA Snap System Beam Spreader - Uneven Lighting
Replies: 18
Views: 963

Re: Using SORAA Snap System Beam Spreader - Uneven Lighting

Get power adapters right away. Taking cameras off mounts to change batteries is really terrible. I had to do that on my first setup and I still get nightmares. :)
by duerig
14 Mar 2019, 20:45
Forum: Lighting
Topic: Using SORAA Snap System Beam Spreader - Uneven Lighting
Replies: 18
Views: 963

Re: Using SORAA Snap System Beam Spreader - Uneven Lighting

konos92a, your scanner is looks really good. I get mad scientist vibes off of it in the best possible way. Just to be clear, though, looking at the image metadata generated by the camera won't give you an accurate idea of what the DPI is. That is a piece of metadata which every camera adds but which...
by duerig
03 Nov 2018, 19:00
Forum: Scanners and Build Threads
Topic: A DIY Book Scanner In Every Hackerspace /DIY Kit
Replies: 399
Views: 339070

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

Hi. Just FYI, the Archivist bookscanner was a successor design to the one this thread is about. If you want to make an Archivist book scanner, head to: http://diybookscanner.org/archivist In the discussion on glass there, it mentions several options including grinding the panes to a 50 degree miter,...
by duerig
01 Nov 2018, 11:09
Forum: Programs, Software releases, and more.
Topic: TTC : I/O error in case of zoom step
Replies: 3
Views: 12981

Re: TTC : I/O error in case of zoom step

Looks like you are finding a few issues in TwoCamControl. Maybe you will have better luck getting support by submitting tickets on the github page? The author of the tool asked for bug reports to be submitted there.
by duerig
01 Nov 2018, 11:07
Forum: Programs, Software releases, and more.
Topic: Canon A2500 - setting apertue in TTC ? Is this posible ?
Replies: 2
Views: 4564

Re: Canon A2500 - setting apertue in TTC ? Is this posible ?

Canon's cheaper point and shoot cameras (like the A2500) do not have an independent aperture setting. The aperture range listed in the spec is how the aperture changes as they automatically adjust based on zoom level. DSLR and mirrorless cameras will give you sharper images regardless and since you ...
by duerig
08 Oct 2018, 11:55
Forum: Programs, Software releases, and more.
Topic: Introducing spreads: command-line workflow tool
Replies: 80
Views: 38038

Re: Introducing spreads: command-line workflow tool

PocketLibrarian, I'm the author of Pi Scan so I'm happy to work with you to debug your issue. You can PM me or start a new thread (this is not the right place for it). Other than that, I'd say that TwoCamControl is a great controller system. And Using a USB trigger like Konos93a describes is also a ...
by duerig
05 Oct 2018, 12:04
Forum: Cameras and Electronics
Topic: Raspberry PI camera?
Replies: 19
Views: 104329

Re: Raspberry PI camera?

I have played around with this. There are a few limitation of Raspberry Pi cameras. The 8 MP resoloution, the complete lack of zoom, and the fact that a single Raspberry Pi can only handle one camera at a time. But they are cheap. They have manually-set focus control. And they are relatively more re...