A DIY Book Scanner In Every Hackerspace /DIY Kit
Moderator: peterZ
Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
Dan for the most part I'm finished I just have some minor things to get that will aid in the actual scanning like some small LCD screens for the cameras, a blackout cover, a toolbox mat for grip which it seems You had on your cradle in your demo video, I can see how that will aid in having the book stay in place when scanning.
Dbmoura your build looks great your builds seem combine between sleek art and functionality . I had a couple of questions for the nylon webbing you used is this your solution to the glass placement and have you tried it scanning yet, if u have how is its overall performance. Keep you post more pics of it it seems glad placement and the trigger ate the major kinks in this build so far the issue of turning it upside down thanks to you and GaryK has been solved and it seems cfmorrill came up with a clever solution using shock cables and using a pinch bolt for the brake cable to press the trigger.
For your blackout cover do you plan on having a cut out to actual see the book and turn the pages as you are scanning? It looks Lille a nice tight fit that hugs the design of the build nicely So as to not get in the way.
As far as blackout covers go what is it really required to cover to keep external light out in what I've seen from atiz's scanners they have a cover over top like a hood on their DIY model and the other models just have it surrounding the sides and top with the front out. I'm new to this so what are some guidelines on a blackout cover and what needs to be covered especially for this build
Dbmoura your build looks great your builds seem combine between sleek art and functionality . I had a couple of questions for the nylon webbing you used is this your solution to the glass placement and have you tried it scanning yet, if u have how is its overall performance. Keep you post more pics of it it seems glad placement and the trigger ate the major kinks in this build so far the issue of turning it upside down thanks to you and GaryK has been solved and it seems cfmorrill came up with a clever solution using shock cables and using a pinch bolt for the brake cable to press the trigger.
For your blackout cover do you plan on having a cut out to actual see the book and turn the pages as you are scanning? It looks Lille a nice tight fit that hugs the design of the build nicely So as to not get in the way.
As far as blackout covers go what is it really required to cover to keep external light out in what I've seen from atiz's scanners they have a cover over top like a hood on their DIY model and the other models just have it surrounding the sides and top with the front out. I'm new to this so what are some guidelines on a blackout cover and what needs to be covered especially for this build
- dbmoura
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
I am trying the scanner now. I've worked with my first scanner for more then year now, but it was a learning machine. Many books scanned but it was hard to confront a 600 pages where I didn't have a heavy lifter.
I could try issues of optics, distortion and I see a lot of improuvements in this model. So far the images are very sharp with no refletion, but in a couple of days I would try a big book and see other issues. The nylon webbing is my solution to keep the glass well adjusted and in conjunction with pieces of soft rubber (5/16"ø x 3") inserted in the gap, holding the glass in position even for the inverted version. I used 30 of this inside nuts of zamac instead of 1/4" nuts. My plan is to transport the scanner and the extra screws to hold the spacers, in the platen, are other decision I've made. In the craddle I included a fixture to hold the adjustments in position and stabilize my build.
About the cover, yes the Atiz is a good reference. I have the pieces of blackout cut already and after the sewing I will see this option and publish pictures here.
I could try issues of optics, distortion and I see a lot of improuvements in this model. So far the images are very sharp with no refletion, but in a couple of days I would try a big book and see other issues. The nylon webbing is my solution to keep the glass well adjusted and in conjunction with pieces of soft rubber (5/16"ø x 3") inserted in the gap, holding the glass in position even for the inverted version. I used 30 of this inside nuts of zamac instead of 1/4" nuts. My plan is to transport the scanner and the extra screws to hold the spacers, in the platen, are other decision I've made. In the craddle I included a fixture to hold the adjustments in position and stabilize my build.
About the cover, yes the Atiz is a good reference. I have the pieces of blackout cut already and after the sewing I will see this option and publish pictures here.
"Rio 40ºC cidade maravilha do veneno e do caos."
- daniel_reetz
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
Dario, I really like your improvements, and I think with a trigger system like cfmorrill and garyk designed, this could be our 1.0 release.
Please let me know what I can do to help you along - if you can give me a plan of action (label these diagrams, put this on the wiki, etc) I can do that.
Also, I'm very interested in your nylon strap method. It looks like your glass is pressed up against the bottom, and not in slots like GaryK's design, is this correct?
Also, I notice you chose to make the central book support groove in the cradle a "dovetail" shape - do you have a special plan for it?
Please let me know what I can do to help you along - if you can give me a plan of action (label these diagrams, put this on the wiki, etc) I can do that.
Also, I'm very interested in your nylon strap method. It looks like your glass is pressed up against the bottom, and not in slots like GaryK's design, is this correct?
Also, I notice you chose to make the central book support groove in the cradle a "dovetail" shape - do you have a special plan for it?
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
Interesting!
Actually, I always thought the reason for the hole in each of the angled cradle supports was to lock in cradle adjustment. I'm going to stick another piece of 1/4 X 20 threaded rod through the two sets of holes on each side with some fender washers and wing nuts. You move each side where you want it then squeeze the two angled supports together with each set of wingnuts. However, dmoura's version has that beautiful engineered look and I might go for that one instead.
Charles
Actually, I always thought the reason for the hole in each of the angled cradle supports was to lock in cradle adjustment. I'm going to stick another piece of 1/4 X 20 threaded rod through the two sets of holes on each side with some fender washers and wing nuts. You move each side where you want it then squeeze the two angled supports together with each set of wingnuts. However, dmoura's version has that beautiful engineered look and I might go for that one instead.
Charles
- daniel_reetz
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
That's right, that's exactly what I intended, and I like it because it can be machined with no extra angles, requires few parts, etc.cfmorrill wrote:Interesting!
Actually, I always thought the reason for the hole in each of the angled cradle supports was to lock in cradle adjustment. I'm going to stick another piece of 1/4 X 20 threaded rod through the two sets of holes on each side with some fender washers and wing nuts. You move each side where you want it then squeeze the two angled supports together with each set of wingnuts.
Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
dbmoura you said something about soft rubber in the slots do you mean placing something like a rubber that goes to a small window washing squeegee in the glass slots? I think that will work better then the poly cord grip solution the rubber may grip better and it can also be glued into the slots if needed and it won't scratch the glass.
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
WOW! I've been away from these pages for a few weeks and the progress on here is fantastic! Really sad to see GaryK has removed his contributions and unfortunately i don't have much to add tonight myself.
I have been hand building my scanner from 1/2 inch ply, 6 weeks on my 'diy'-diybookscanner is painfully close to completion. I haven't really achieved much since Christmas came along but my trigger assembly is now complete and functioning beautifully. I took some inspiration from GaryK in the splitting of the single brake cable and will upload pictures to my post when I'm off work next week (see my hand cut version here)
I still have the light unit to play with - Ive got a twin tilting halogen spot light unit (the sort you might put in a kitchen ceiling) that i plan to make a little box for and connect it to a plug. Not sure of this is completely suitable but I'm trying to keep costs down (so far I've spent around £60 building my scanner)
For the bottom edge of the platen where the glass meets, I'm going to attempt splintering away the edge of a graphite tent pole whilst leaving the ends round, then by drilling a hole in each side of the platen I'm hoping the glass will meet - but not rest too heavily on the thin remaining graphite strip.
I will take lots of pictures and try to better document my scanner in the coming weeks but for now, here is a picture of one of my triggers (tip: make both levers the same length and mount from the same side of both left and right cameras)
Happy Scanning
I have been hand building my scanner from 1/2 inch ply, 6 weeks on my 'diy'-diybookscanner is painfully close to completion. I haven't really achieved much since Christmas came along but my trigger assembly is now complete and functioning beautifully. I took some inspiration from GaryK in the splitting of the single brake cable and will upload pictures to my post when I'm off work next week (see my hand cut version here)
I still have the light unit to play with - Ive got a twin tilting halogen spot light unit (the sort you might put in a kitchen ceiling) that i plan to make a little box for and connect it to a plug. Not sure of this is completely suitable but I'm trying to keep costs down (so far I've spent around £60 building my scanner)
For the bottom edge of the platen where the glass meets, I'm going to attempt splintering away the edge of a graphite tent pole whilst leaving the ends round, then by drilling a hole in each side of the platen I'm hoping the glass will meet - but not rest too heavily on the thin remaining graphite strip.
I will take lots of pictures and try to better document my scanner in the coming weeks but for now, here is a picture of one of my triggers (tip: make both levers the same length and mount from the same side of both left and right cameras)
Happy Scanning
- dbmoura
- Posts: 43
- Joined: 21 Jan 2010, 09:14
- E-book readers owned: iPod Touch, Palm V, iPad2
- Number of books owned: 2000
- Country: Brazil
- Location: Belo Horizonte, Brazil
Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
I used foaming sealing strip 5/16" cylindrical and it was very nice and easy to hold the glass tight.
"Rio 40ºC cidade maravilha do veneno e do caos."
- dbmoura
- Posts: 43
- Joined: 21 Jan 2010, 09:14
- E-book readers owned: iPod Touch, Palm V, iPad2
- Number of books owned: 2000
- Country: Brazil
- Location: Belo Horizonte, Brazil
Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
At the end I decided to adjust the nylon webbing and reflecting about Dan's advice on possible contact with some books, I've thought the webbing would hold the glass a bit more and protect this contact,.
My gap for the glass is 1/4" and is facing the border like Dan's original design.
My gap for the glass is 1/4" and is facing the border like Dan's original design.
"Rio 40ºC cidade maravilha do veneno e do caos."
Re: A DIY Book Scanner In Every Hackerspace /DIY Kit
Instead of the webbing, couldn't you just make a sheet metal angled clip that attached to the front of the plywood with a screw and nut (CS from the backside - nut on front), that had two tabs that bent 90 deg. under the wood edge to support the glass panels? Pretty easy to make something like this with some tin snips, a bench vise, and a pistol drill. (Let me know if you need a sketch)
Another way to suspend a glass panel in a larger slot is to get a piece of rubber tubing and split it with a razor blade. Put the tubing on the edge of the glass and then insert tubing covered edge into the larger slot. Don't know if that will work with your plywood pieces though since the glass would then be centered in the slot and might not ride against the wood edge where it isn't in the slot.
Another way to suspend a glass panel in a larger slot is to get a piece of rubber tubing and split it with a razor blade. Put the tubing on the edge of the glass and then insert tubing covered edge into the larger slot. Don't know if that will work with your plywood pieces though since the glass would then be centered in the slot and might not ride against the wood edge where it isn't in the slot.