> To: ModularSynthPanels@yahoogroups.com
> From: synth@...
> Date: Sun, 3 Feb 2008 12:06:12 -0500
> Subject: [ModularSynthPanels] Re:laser etching
>
> A friend of mine has a small company that builds electronic devices and
> he invested in one of those lasers. It's kind of like the old X/Y flat
> bed plotters except there's a laser. One thing that works very well is
> using the laser to remove anodizing. So start with a black anodized
> panel and end up with silver lettering. Very sharp and long lasting. The
> other thing to do is use plastic that has two layers of different color
> (commonly used for signs). The laser takes off the top layer and can
> make the holes and cut the edges, which it can't do with aluminum. He
> made me a plastic panel for a MOTM-440 filter I crammed into Frac Rack
> format and that worked fine backed up by a metal plate but in the future
> I think I'll make anodized aluminum panels at Front Panel Express (or
> some place like that) and use the laser to do the graphics. FPE's not so
> expensive if you're only making holes. Oh there is also a chemical you
> can apply to non-anodized aluminum which makes it photosensitive for the
> laser. This produces black lettering and it's a very permanent bond. My
> friend has not tried this yet. I think this may be what's used on the
> PlanB modules. Run your finger over it and you don't feel anything,
> unlike silk screened graphics.
>
>
>
>
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