Re: [CAD_CAM_EDM_DRO] Re: 2D printer-real parts

Randy Gordon-Gilmore wrote:

>
> Ian Wright wrote:
>
> > could try to find an ink which would be resistant to etching chemicals and
>
> There's an old thread from the sci.electronics.design newsgroup at
>
> http://engrss2.unl.edu/ee/eeshop/pen.txt
>
> concerning ink suitable for etch resist. One guy was able to get it to
> work in a pen plotter. Inkjet would be an interesting development. I
> wonder if anyone has tried ALPS dry "ink" (actually wax, I think) as resist?

Yes, and the heat from the machine welded the ribbon to the brass,
trashing the print head.

ALPS dry ink is a sublimating dye - when heated it goes directly from
the solid to the gas stage. The gas then condenses on the paper.

A well developed process has been developed, though.
You print with a laser printer onto a special carrier paper.
You then pass the paper and the stock through a laminator,
which fuses the toner to the stock.

Peel off the paper and you have toner on metal. The toner is
a resist.

For simple shapes, dry transfers and the sharpie mentioned above
will do a lot.