Leon,
If you use commercially pre-sensitized board material ( I recommended
Ocean State at
http://www.oselectronics.com/ose_p78.htm good price )
developed in Lye solution.
Using HP Laserjet 1100 at 600 DPI with economy toner saving featured
turned OFF, and using Apollo CG7060 Transparencies I can do 5 mil any
time.
Using same printer with 3M G3300 it will do 10 mil all the time.
I seem to remember the LJIIIP did 300 dpi. I think you can still expect
10 mil.
Hans W
Leon Heller wrote:
> I can do 12/12 mil tracks, with 10 mils if necessary, using an old
> LaserJet
> IIIp to produce the transparencies. I was wondering what is the best
> any of
> you can do with a laser printer. I've heard of people getting down to
> 8 mils
> with a better printer than mine, and it should be quite easy using
> photo-reduction from a 4:1 master.
>
> There is a PCB co. in the UK that offers 4 mil tracks as standard! I
> haven't
> bothered to ask them about prices, though, as I'm sure I won't be able
> to
> afford to use them.
>
> Leon
> --
> Leon Heller, G1HSM
> leon_heller@...
> http://www.geocities.com/leon_heller
>
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