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 dpc
08 Jun 2021, 13:34
Forum: Scanners and Build Threads
Topic: a small story for my scanner
Replies: 71
Views: 52017

Re: a small story for my scanner

If you want to see reflections, put black paper under the platen, leave the lights ON, then photograph the black paper. I'm not sure what photographing book pages with the lights OFF shows, other than light contributions to your images from light sources other than the scanner's light.
by dpc
27 May 2021, 18:08
Forum: Lighting
Topic: Lighting for PVC pipe scanner
Replies: 20
Views: 2247

Re: Lighting for PVC pipe scanner

The Viltrox light's housing has a threaded 1/4-20 hole on the bottom edge (this is the same thing that most cameras have to mount to a tripod). I don't know why you'd use a hot shoe mount with this light unless you're going to mount it on the hot shoe of a camera. I'm unaware of how Landin mounted t...
by dpc
24 May 2021, 16:05
Forum: Lighting
Topic: LED lamps 'Warm' or 'Cold' light - Does it matter?
Replies: 6
Views: 1355

Re: LED lamps 'Warm' or 'Cold' light - Does it matter?

I'd strongly encourage anyone that is worried about the color temperature of lights affecting their photographed pages to use a camera that supports custom white balance control instead of a smartphone (although it's possible that some of the camera apps on newer phones may also support this feature...
by dpc
16 May 2021, 01:01
Forum: Lighting
Topic: Lighting for PVC pipe scanner
Replies: 20
Views: 2247

Re: Lighting for PVC pipe scanner

...it could also be the case that dpc with probably greater experience examined the light produced more closely. Here's a simple experiment that may help to explain things... If you put your camera in the bottom of the platen 'v' and pointed it straight up to photograph the light source above, what...
by dpc
13 May 2021, 12:52
Forum: Lighting
Topic: Lighting for PVC pipe scanner
Replies: 20
Views: 2247

Re: Lighting for PVC pipe scanner

Sorry, I've never used smartphones for any sort of document photography so I can't comment on their capabilities. Others that have posted in these forums have though. You might want to search through the posts to see if there's anything useful.
by dpc
12 May 2021, 12:28
Forum: Lighting
Topic: Lighting for PVC pipe scanner
Replies: 20
Views: 2247

Re: Lighting for PVC pipe scanner

Those LED flood lights put out a lot of light, but are heavy and generate an inordinate amount of heat. They are also wider than some other lights and that requires the light to be mounted higher to prevent it from being reflected off the platen and into the scanned image. I also found that they had...
by dpc
11 May 2021, 11:13
Forum: Lighting
Topic: Lighting for PVC pipe scanner
Replies: 20
Views: 2247

Re: Lighting for PVC pipe scanner

I've bought those single-chip floodlights on eBay in the past. I no longer use those though and have moved to lights similar to these.
by dpc
29 Apr 2021, 13:47
Forum: Scanners and Build Threads
Topic: Archivist Quill Kit Plans vs. Archivist Book Scanner Plans?
Replies: 62
Views: 9543

Re: Archivist Quill Kit Plans vs. Archivist Book Scanner Plans?

I don't know what the reason is behind Landin choosing a 110 degree platen angle over the more common 100 degrees. Perhaps it was a requirement that the cameras needed to be mounted closer to the platen with his plastic tubing arm design and that would require an increased platen angle to prevent a ...
by dpc
21 Apr 2021, 12:15
Forum: Scanners and Build Threads
Topic: Archivist Quill Kit Plans vs. Archivist Book Scanner Plans?
Replies: 62
Views: 9543

Re: Archivist Quill Kit Plans vs. Archivist Book Scanner Plans?

cday, Yes, that's the gap that I filled in a platen comprised of two glass panes. I wouldn't do that with acrylic though. You need to set the saw cut to 40 degrees, not 50. It's the opposite of what you think it is. The smaller the angle, the more "open" the platen V will be when the two cut pieces ...
by dpc
20 Apr 2021, 17:53
Forum: Scanners and Build Threads
Topic: Archivist Quill Kit Plans vs. Archivist Book Scanner Plans?
Replies: 62
Views: 9543

Re: Archivist Quill Kit Plans vs. Archivist Book Scanner Plans?

Or did you just possibly use it to fill the larger gap in the right image? Right side. So miter with a circular saw with a fine-toothed blade? I haven't cut acrylic with a circular saw, but if I did, I'd look for a blade made for cutting laminate/plastic which is going to have a lot of teeth and a ...