Hi Pierre,
I can see where the copper plated thru your masking, but the effect in this case came out kinda cool!
Neat idea, and I hope your further efforts come closer to design specs.
: D >
CT2
--- In gingery_machines@yahoogroups.com, Pierre Coueffin <pcoueffin@...> wrote:
>
> Well, I tried plating with Copper. The results were not as good as I'd hoped.
>
> http://groups.yahoo.com/group/gingery_machines/photos/album/541390216/pic/609613649/view
>
> I think the problem is actually the toner (or possibly the parchment)
> that I used. I did the thermal transfer at low temperature on the
> kitchen stove, using a silicone spatula to smooth it on. The toner
> did not come off of the parchment very cleanly... Plenty transferred,
> but the picture was still clearly bonded to the parchment as well. I
> would expect better masking if I can get more of the toner to transfer
> over.
>
> I used a strong, but not super-saturated solution of copper sulphate.
> It plates the steel sheet in about 3 seconds, just by brushing it on,
> and moving the puddle around. The toner seems to be insoluble in
> acetone, and is actually fairly difficult to scrub off.
> Unfortunately, it is permeable to the copper sulphate, so wherever I
> rubbed it off, there was copper underneath. I'm not sure if this is a
> property of the Samsung toner though. I'm going to try using a
> Toshiba photocopier next time.
>
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