Re: Engraving

I recall an etching class in art school. Etchers and engravers used
the same kind of ink, much greater viscosity than even tube oil
paint. The plates were heated, and the ink squeegied into the lines.
After the plate cooled it was wiped with a very stiff, but lint freee
rag--I think we called it a tarlatan. I'm not sure you'd want to use
the ink without some additive to insure the oils dried, you may be
able to find something out there that will do the same thing, though.
If your engravings are not too deep, this technique would allow some
control in feathering the image. (Whistler did this.) Once the filler
dried, you could seal with lacquer.


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "exeric1" <exeric1@y...>
wrote:

> This may be a bit off subject but hopefully someone will know. I'm
> planning on using my CNC to engrave brass and also wood. The brass
> won't be engraver's brass - that is it won't be film coated - but
> will be straight unfinished brass. I plan on paint filling the
> engraving by hand. Will paint stick to unprimered clean brass? I
> can't seem to find anything about that. It just seems to me that

its

> too difficult to align tiny bits of paint over primer without

either

> having parts of the primer show or having the paint appear
> differently where paint covers bare metal and where it covers

primer.

>
> The same question applies to hand color engraving on wood. I think
> it might be easier here because one could just seal the whole piece
> of wood after engraving and then color it. How is this stuff
> normally done? It doesn't seem like it should be such a big deal

but

> I can't seem to figure out a way where it isn't.
>
> Thanks, Eric