Homebrew PCBs

Hi Vasile-

I've never blown glass but have seen it done.

What did the glass pen look like when it was done? How did it write
the ink? Did it have a "nib", or a ball, or what?

Grant

--- In Homebrew_PCBs@yahoogroups.com, Vasile Surducan <vasile@s...> wrote:
> 
> 
> Maybe it sounds crazy for your ears, but in the comunist era we have
used
> for XY plotters a home made glass pen, very similar with the Staedler or
> Rotring pens, and the result was quite amazing, the same resolution as a
> 0.5 standard pen. You need just a bunsen gas burner, a vial and two
right
> hands to pull the glass.
> The key for continuous traces was keeping down the pen (on the printed
> surface) as much as possible.
> 
> best regards,
> Vasile
> http://sudrucan.netfirms.com