[chbot] laser

[Solor Vox]

I have a 60W CO2 machine if you need something cut or engraved.  Most
other plastics are safe, as well as wood up to 20mm pine or 12mm MDF. 
However, I can't work with any materials containing chlorine in them such
as vinyl.  That stuff turns into hydrochloric acid when vaporized.  I also
don't cut PCB due to the nasty stuff inside them.

It's not just about laser watts, but how fast you translate the point and
pulse frequency per inch.  Each material has different melt/burn back from
the edges and these will effect the quality of your work.

Cheers,
sV

On Thu, September 19, 2013 17:22, Marshland Engineering wrote:
> Some time back, lasers were commented on. I'm looking at making stencils
> for
> PCB for applying solder paste.
>
> I'm new to this but 0.1 mm film seems to be an option and from the web I
> found this
>
> " 1 Watts blue laser diode will be enough to cut through a thin plastic
> sheet"
>
> Anyone got one to spare of know which one to buy ? I'm not sure how fine a
> point the budget ones are.
>
> I have a CNC mill so cutting out the stencil should be quite easy.
>
> Just ordered a small reflow oven. Anyone want to try it, give me an email.
>
> Thanks Wallace

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