Homebrew PCBs

Hello,

I have used an HP7470A to plot to
a PCB, it's slow but very useable
the trick is finding the finest felt tip
pen(plotters are sort of obsolete so the
finest I could find is .3mm, too big to
pass between ic legs) for best result
use an oil based permanent ink. I took
a permanent marker which that is oil based
and cut a length of thing that holds
the ink(it's foam in a plastic tubing or someth)
and replaced the one in plotter pen.

Note. I'm new in electronics tho.


--- In Homebrew_PCBs@yahoogroups.com, virgil antonov <av07@y...> wrote:
>
> Hi,
> My question is: Did anyone knows about using Plotters
> like HP 7474A or alike to make decent PCB's?
> Thanks,
> Virgil
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around 
> http://mail.yahoo.com
>