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Subject: Re: [Homebrew_PCBs] Q - writing etch-resist directly to copper

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2005-07-12

On Mon, 11 Jul 2005 22:50:04 +0200, David McNab <david@...>
wrote:

>
> Are there any simple ways to get this pen to deliver a thin (<0.4mm)
> line? Or should I stick to the thermal toner transfer which I've already
> got working?
>


you got much the same results i got.
I took it a step further and bought expensive carbide-tipped pens with
cross-ground tip.

Didn't work because (i think) the trailing edge of this metal "tube"
scrapes away much of the ink and it is no etch resist layer an more.

I never got plotting to copper to work, and it would have been very slow
anyway.


IMO you are wasting your time, but with what seems a reasonable idea so it
isn't foolish.

ST