Homebrew PCBs

Maybe they offer some other colors but it'll probably be black not green.

It's not terrible at $0.17c/inch but not cheap ($300 a roll)).

They say it's completely fused to the metal and even strong solvents won't
remove it.

I have a 50W CO2 mach3 controlled XY gantry laser.  I'm selling them myself
for around $2000.
On Tue, Oct 27, 2009 at 10:21 PM, Andres Hernandez
<afhernandez79@...>wrote:

>
>
> Hello Henry
>
> looks like a very nice solution, I have seen the videos and  works very
> good.
>
> Are you sure that you can print the solder mask with those inks (green one)
> ?.
>
> Can you tell me what is the co2 laser printer´s brand that you have and the
> price ?
>
> Thank you for your help
>
> Ingeniero Andres F. Hernandez
> Pontificia Universidad Javeriana
>
> Celular    (300)7825582
> Casa       (572) 5572655
>
> ________________________________
> From: Henry Liu <henryjliu@... <henryjliu%40gmail.com>>
> To: homebrew_pcbs <Homebrew_PCBs@yahoogroups.com<Homebrew_PCBs%40yahoogroups.com>
> >
> Sent: Tue, October 27, 2009 5:27:23 PM
> Subject: [Homebrew_PCBs] Cool results with CO2 laser
>
>
>
> I was experimenting with my CO2 laser product last night and I did the
> following:
> 1) convert Gerber to DXF
> 2) cut DXF at 30% laser power on mylar film on top of copperclad
> ->results in nice mylar cutout of the traces
> 3) remove excess mylar leaving the traces
> 4) raster scan at 5% laser power to weld traces to copper without
> evaporating it
>
> Results were a nicely stuck on piece of plastic trace on the pcb ready
> for etching with no surface prep or drying time!
>
> This is the way to do it for large pcbs. Takes a minute or two by
> laser and I can stick any size in their up to 12"x12".
>
> I'll post pics whenever I have the time.
>
> Also these guys sell a nice laser solution for both traces AND Solder
> mask: http://www.youtube. com/watch? v=mW1zVyaY_ ZU
>
> It comes in tape form (costs a lot more than mylar though) and you
> just laser over it and it leaves just the traces. Apparently it is
> rock hard and heat resistant so would form a nice mask. With
> experimentation you could laser the traces, etch it, mask it and then
> drill it all with the laser.
>
> [Non-text portions of this message have been removed]
>
>  
>


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