Homebrew PCBs

I tried .5mm (~20mil) lines and it wasn't a problem.  Maybe I could go
smaller but would need to spend more time focusing and not sure if it would
stick.

It could not be removed that is why I suggested using it as a solder mask.

No pics at this time.


On Mon, Mar 1, 2010 at 12:17 PM, <kimvellore@sbcglobal.net> wrote:

>
>
> Henry,
>    That sounds interesting, how sharp are the lines and how thin a line
> size can you go. How do you remove the glass like coating for soldering. If
> you have any pictures of a finished board that will be good.
>
> Kim
>
> --- On Mon, 3/1/10, Henry Liu <henryjliu@... <henryjliu%40gmail.com>>
> wrote:
>
> From: Henry Liu <henryjliu@... <henryjliu%40gmail.com>>
> Subject: Re: [Homebrew_PCBs] Laser engraver using an XMOS XK-1
> To: Homebrew_PCBs@yahoogroups.com <Homebrew_PCBs%40yahoogroups.com>
> Date: Monday, March 1, 2010, 9:28 AM
>
>
> I've had good luck laser engraving Thermark (www.thermark.com) for a PCB
> soldermask.  It leaves a permanent glass-like surface on the PCB.
>
> High powered non enclosed laser like that laser while cool isn't
> recommended.  Chance of laser reflection would be high.
>
> Lasers have come down in price.  We sell the basic model for $1495:
> http://www.fullspectrumengineering.com/co2laserv2-40w.html
>
> On Mon, Mar 1, 2010 at 6:34 AM, Leon Heller <leon355@...<leon355%40btinternet.com>>
> wrote:
>
> >
> >
> > I'm heavily involved with XMOS chips, and this laser engraver is a nice
> > use for the little XK-1 board:
> >
> > http://www.xcore.com/forum/viewtopic.php?f=3&t=262&p=1964#p1964
> >
> > It's probably got some PCB applications.
> >
> > Leon
> > --
> > Leon Heller
> > G1HSM
> >
> >
>
> [Non-text portions of this message have been removed]
>
> ------------------------------------
>
>
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
> [Non-text portions of this message have been removed]
>
>  
>


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