A DIY Book Scanner In Every Hackerspace /DIY Kit

Built a scanner? Started to build a scanner? Record your progress here. Doesn't need to be a whole scanner - triggers and other parts are fine. Commercial scanners are fine too.

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

Postby Fab52 » 28 Feb 2012, 01:55

Hi,

I pick-up my future scanner tonight, I'll post some photos tomorrow... I think we have to make an instruction booklet for the Cnc owners who cut those scanners for us. We see the scanner and read about. They just don't know if it's a JD combine or a new form of cabinet ....

The young man who cut mine was a gentlemen, he start doing it last friday night because he's going south for two weeks, next wednesday....

He was running into trouble with the Baltic birch plywood... He say it is really hard stuff compare to the MDF or others stuff used for kitchen cabinet. He break 6 bits and have to slow down the feed rate to the point it take him twice the time he figure out to do the job.

When he's doing kitchen cabinet, his CNC is able to produce 6 sheets of 4'X8' an hour. Beleive me this CNC is a monster...

This young man do programming error, not because he's stupid but because the informations I give him was'nt clear enough.

The error are not major to the point that I will have to scrap some parts but some of them I will have to be redone it on my milling with a flying cutter. Not the kind of machine most end user have...We're far from IKEA allen key here. :-)))))

It seam that there is no instruction to flip the sheet to do the bearing trust on both side of the arm....

Nothing major here, but it seam the instructions for the pulley are confusing. I'll show you tomorrow....

See you

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

Postby daniel_reetz » 28 Feb 2012, 11:44

That's strange... my machine, which is not very strong, can cut right through the birch more easily than MDF. Please keep us up-to-date with your experiences...
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit

Postby rob » 28 Feb 2012, 18:38

wolverinenw wrote:Hi All - I was perusing the threads / shopping list related to the 0.9.10 scanner build, and was wondering if anyone had the dimensions or a part number / source for the L-brackets retaining the platen glass?


Check here: McMaster part number 15275A51. It's under "Nickel-Plated Steel (Styles 4-6)", the first item in there (style 4).
The Singularity is Near. ~ http://halfbakedmaker.org ~ Follow me as I build the world's first all-mechanical steam-powered computer.
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit

Postby rob » 28 Feb 2012, 18:43

Fab52 wrote:When he's doing kitchen cabinet, his CNC is able to produce 6 sheets of 4'X8' an hour. Beleive me this CNC is a monster...


Kitchen cabinets are all long, straight lines. Our scanner is all small little curves -- so the distance that the CNC cuts during the entire run is much much longer than the distance around a simple square kitchen cabinet panel. As for breaking bits... yeah, I guess that the guy tried to go too fast!
The Singularity is Near. ~ http://halfbakedmaker.org ~ Follow me as I build the world's first all-mechanical steam-powered computer.
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit

Postby wolverinenw » 28 Feb 2012, 22:59

rob wrote:
wolverinenw wrote:Hi All - I was perusing the threads / shopping list related to the 0.9.10 scanner build, and was wondering if anyone had the dimensions or a part number / source for the L-brackets retaining the platen glass?


Check here: McMaster part number 15275A51. It's under "Nickel-Plated Steel (Styles 4-6)", the first item in there (style 4).


Thanks Rob - Had forgotten how many useful items they stocked!
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit

Postby Fab52 » 01 Mar 2012, 08:42

Hi,

Rob, Dan, what type of router bit are you using to cut the baltic birch ?

Thanks

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

Postby Fab52 » 02 Mar 2012, 08:47

Hi,

I try to order the L bracket from McCaster-Carr yesterday... :oops:

They don't ship in Canada anymore...What happen with the free trade agreement ????

Any supplier of this bracket in Canada ????

Thanks

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

Postby Nehpets » 02 Mar 2012, 11:20

We are making a bookscanner for our schoollab.
I'm adjusting the .ai files for our cnc router, and I had a couple of questions.

1. What is this structure. I can't find it in the manual nor on the pictures of your scanner.
Image

2.In the manual you you use the smaller handle. What is the purpose of the bigger handle?
Image

3.What are thes structures for? Couldn't find it.
Image

4.In the .ai files, only one side is shown. As I can see in your assembly manuel, the holes for the bearing should be on both sides. Are there other stuctures that should be routed on both sides?

Thanks for your time, and thanks for the efoort allready put into the projecten and keeping everything opern source.. amazing!
Nehpets
 

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

Postby daniel_reetz » 02 Mar 2012, 13:10

Fab52 wrote:Hi,

Rob, Dan, what type of router bit are you using to cut the baltic birch ?

Thanks

FAb


1/4" downcutting spiral from onsrud.com
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Re: A DIY Book Scanner In Every Hackerspace /DIY Kit

Postby daniel_reetz » 02 Mar 2012, 13:15

Nehpets wrote:We are making a bookscanner for our schoollab.
I'm adjusting the .ai files for our cnc router, and I had a couple of questions.

1. What is this structure. I can't find it in the manual nor on the pictures of your scanner.
Image


It's a stopper-thing for the brake cable system. Just eliminate it, neither Rob nor I like it and it is a waste of routing time.

Nehpets wrote:2.In the manual you you use the smaller handle. What is the purpose of the bigger handle?
Image


There are two handles for two different hand positions. You can cut them both and see which one you like better.


Nehpets wrote:3.What are thes structures for? Couldn't find it.
Image


Those are "fixtures" so you can flip parts over and have the outer machine out the skate bearing pockets on the reverse side. You can also do that with a drill press - viewtopic.php?f=14&t=1268 - then you don't have to cut those holes or flip things over, which can be challenging.


Nehpets wrote:4.In the .ai files, only one side is shown. As I can see in your assembly manuel, the holes for the bearing should be on both sides. Are there other stuctures that should be routed on both sides?


See above. Anything with a skate bearing gets cut on both sides.

Nehpets wrote:Thanks for your time, and thanks for the efoort allready put into the projecten and keeping everything opern source.. amazing!


You're welcome. Somebody (and that would be me) really needs to commend Rob for his incredible work on this machine lately. He's really gone the extra mile making documentation, programming the new artwork, working out bugs AND selling really, really great kits.

I am trying really hard to catch up to him but in the meantime, a huge round of thanks to Rob... he's really made this possible. Be sure to check out his work at halfbakedmaker.org
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