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Alan and the Photolithography PCB Making Process
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Project_Nightmare
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Joined: 12 Oct 2007
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Location: Gig Harbor, WA

PostPosted: Sat Mar 01, 2008 4:42 pm    Post subject: Reply with quote

Alan wrote:
What I did is to show the image on the screen then do a print screen. The print screen was then captured and cropped. I then imported it into word and changed the width to the correct size (as designed)

Let me know how the etchant making goes. I have tried it once with not so good results... Making and using that etchant would make a good feature article if there were a bunch of pictures to go along with the process. Smile


I tried Screen Printing and found that it losses too much resolution to get a good print Rolling Eyes
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Nginuity
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Joined: 13 Nov 2006
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Location: Dallas, Texas

PostPosted: Sun Mar 02, 2008 12:19 am    Post subject: Reply with quote

Print to PDF Smile
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Project_Nightmare
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Location: Gig Harbor, WA

PostPosted: Sun Mar 02, 2008 12:10 pm    Post subject: Reply with quote

Nginuity wrote:
Print to PDF Smile
I already said I did from the previous post and got it to work Twisted Evil
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Nginuity
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PostPosted: Sun Mar 02, 2008 3:38 pm    Post subject: Reply with quote

I know, I was just giving you a hard time man, hehe

Congrats on getting it to work.
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Project_Nightmare
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PostPosted: Sun Mar 02, 2008 11:04 pm    Post subject: Reply with quote

Nginuity wrote:
I know, I was just giving you a hard time man, hehe

Congrats on getting it to work.

Thanks for helping me Embarassed
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Project_Nightmare
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Joined: 12 Oct 2007
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Location: Gig Harbor, WA

PostPosted: Mon Mar 03, 2008 9:34 am    Post subject: Reply with quote

I know this is a problem for the toner transfer method if a person touches the copper clad board, but do fingerprints have an effect on the transparency when they are being transfered to the photoresist?
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Alan
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Joined: 29 Jan 2006
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Location: Winnipeg, MB

PostPosted: Mon Mar 03, 2008 12:45 pm    Post subject: Reply with quote

Project_Nightmare wrote:
I know this is a problem for the toner transfer method if a person touches the copper clad board, but do fingerprints have an effect on the transparency when they are being transfered to the photoresist?


I have never had any problems with fingerprints however I have always handled them by the edges.
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Nginuity
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PostPosted: Mon Mar 03, 2008 7:51 pm    Post subject: Reply with quote

I've never had a problem either...Generally, the acid is caustic enough to do harm to you from prolonged exposure on skin, so, I would think it's no issue for a dirty copper board with fingerprint oil..
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Project_Nightmare
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PostPosted: Tue Mar 04, 2008 9:33 am    Post subject: Reply with quote

Nginuity wrote:
I've never had a problem either...Generally, the acid is caustic enough to do harm to you from prolonged exposure on skin, so, I would think it's no issue for a dirty copper board with fingerprint oil..

Have you seen some of the boards that have fingerprints on them? They look awful. I'm no expert, but I sure that the oil can resist the acid and base enough to leave a mark. I'm worrying about fingermarks because I might buy the prints from a local store and have them print it out so I don't have to spend a lot more buying transparencies I do not I need, but then I'm faced with them placing their fingerprints anywhere on it which might be a problem Rolling Eyes

And I'm already aware of the damage that these super acids and bases can do to a person's skin.
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Nginuity
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PostPosted: Tue Mar 04, 2008 9:38 pm    Post subject: Reply with quote

Seriously, I've seen some really dirty boards, and I haven't seen an issue...Of course, my etchant agitates when I etch a board too, that may make a difference.
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