Homebrew PCBs

Figure a single laser pass. More than once can mess up the fine lines.

Derek Koonce
DDK Interactive Consulting Services


On 2/28/2013 10:18 AM, MIKE DURKIN wrote:

> do you mean on polyimide kapton copper clad laminate??
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> you can get it on ebay ...
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> Actually thats not a bad idea ....
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> then run through a laser printer a few times .....  then etch ....
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> Heck ....
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> Spendy stuff though ..... but then agin .. its cheeaper than 200$ for a 3 board run ...
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> To: Homebrew_PCBs@yahoogroups.com
> From: derek@...
> Date: Thu, 28 Feb 2013 09:56:03 -0800
> Subject: [Homebrew_PCBs] New PCB etching method proposal
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>        I just had an idea of a better PCB generation system. It is still in the
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> There is the photo-resist method that needs darkness.
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> There is the Toner Transfer System that I use a lot. But I find that I
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> am always touching up traces, especially the fine ones.
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> One person figured if they can print directly to the PCB using a laser
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> jet, but the stiff board would not go through the rollers.
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> What if I can come up with a flexible material that can be printed to
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> directly a positive image and then etch? It would be able to go through
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> laser printers without a problem.
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> I am building up some samples to test, but would this list be interested
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> Oh, to stiffen up, just add a piece of fiberglass to the back. Which I
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> can make as well. Would you be interested in this method? How much would
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> one be willing to pay for the materials for a 2"x2" size of board -
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> granted a larger one would be possible as well. In fact, using a legal
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> size copier would allow one to print up a 11" x 17" circuit board.
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