Re: [gingery_machines] new article available: Laser Printing to Metal

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Wednesday, August 31, 2011

 

Pierre,

It would be a great advancement if the copper sulphate works. I tried Draino and later tried sulphuric acid. Both broke up the toner before taking much aluminum. I also tried a DC current with salt water and it was even worse on the toner. Using the current, I tried long exposures at low currents and short exposures at high currents. No joy.

Just to state the obvious - make sure the surface is very clean. Use gloves to both protect the surface from skin oils and to protect your skin from the acid. Wear eye protection.

Rick
Rick.Sparber.org

On Aug 31, 2011, at 1:54 PM, Pierre Coueffin <pcoueffin@gmail.com> wrote:

> I think I've had a neat idea... I now have some pretty nice pieces of
> parchment with sharp looking images printed on them. The toner is
> *very* loosely adhered to the parchment.
>
> I'm going to try thermally transferring one to a sheet of steel, then
> flood the surface carefully with a strong solution of Copper(II)
> Sulfate. (I just hit the hardware store for $10 worth of "Summit
> Brand Root Clear", which according to the MSDS is 100% Copper (II)
> sulfate pentahydrate...) I think that the toner will act as a resist
> medium, and I'll get copper plating everywhere that the toner has not
> adhered. A quick acetone bath and the results should be pretty
> interesting. If I need a more durable finish, I could add a bit of
> current and electroplate the non-masked areas.
>
>
> ------------------------------------
>
>
>
>

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