Homebrew PCBs

thaat would be interesting to see what result is possible...


this short video presentation I found on the PLUS site explains the DLP mirror chip fairly well


http://www.plus-america.com/papers.html


Robby

--- In Homebrew_PCBs@yahoogroups.com, MIKE DURKIN <Patriot121@...> wrote:
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> I was thinking of replacing the bulbs with some .... in a DLP projector .... 
> true, you need to change the focal length ...
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> But if an image that was meant to be 12'long and 8'wide refocused at 12"x8" might produce some verry fine images...
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> Too bad DLP projectors are still silly spendy  ....
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> Mike KC7NOA 
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> To: Homebrew_PCBs@yahoogroups.com
> From: oceanartscasino@...
> Date: Tue, 10 Jan 2012 02:41:29 +0000
> Subject: [Homebrew_PCBs] Re: Dry Film Laminator
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>       yes, led's could work, I've seen several on youtube and in "image search" when typing "uv exposure unit" on google.
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> typing "imagesetter" brings some other interesting results, though most appear a bit too large for hobby purposes. this link looks to be promising even if it's lacking very much information about the product, from LaserBlack International?
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> http://www.alibaba.com/product-free/103459868/My_Image_setter_film_maker.html
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> Besides the crazy expensive Bungard Filmstar Photoplotter,
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> what are the small, desktop, or even portable solutions to making transparencies that are both dark enough for larger "fill" areas and fine enough for the smallest trace routing?
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> Robby
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> --- In Homebrew_PCBs@yahoogroups.com, MIKE DURKIN <Patriot121@> wrote:
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> > There are some 3W 402nm led's that should work ....
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> > Mike KC7NOA 
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> > To: Homebrew_PCBs@yahoogroups.com
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> > From: oceanartscasino@
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> > Date: Tue, 10 Jan 2012 00:24:27 +0000
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> > Subject: [Homebrew_PCBs] Dry Film Laminator
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> >       my first step to fabricating quality boards...
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> > today the UPS truck left my new:
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> > GMP Photonex-Sync235 9" Laminator with 4 internally heated silicon rollers and digital control
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> > on the doorstep, working in the office all day I just found it,
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> > an absolutely beautiful sparkling silver finish and very heavy!
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> > no UV light source as such, BUT, I happen to have an old opaque projector with (4) 300Watt halogen bulbs that reflect off of an A3 size glass plate when copy is placed for projection onto a wall, I haven't tried yet but I'm pretty sure I can tape transparency and negative dry film laminated board down to the glass and expose just as I would with a multi tubed UV exposure box.
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