--- In
Homebrew_PCBs@yahoogroups.com, DJ Delorie <dj@...> wrote:
>
>
> Thanks for the info. How accurate can you etch? The board I'm
> working on has 0.5mm (20 mil) pitch parts, so I'd need something like
> 10 mil holes with 10 mil brass between them, about 40-65 mil long.
> This would be in the 5 mil thick brass, I think.
>
I've never tested the accuracy but it has more to do with the toner
transfer process than the etching process. Which is still hit and miss
for me. I'm about ready to go back to P'n'P Blue again rather than
keep experimenting, though the Xerox Waterproof seems to work well
with -some- printers. I tried it in an Office Depot Xerox copier and
1) the copier couldn't feed the thin sheets properly, I lost half the
stack when it tried to feed eight at once, and the toner doesn't
transfer as well as the Xerox Docucolor 12 that Staples has. I was
hoping people would test various home printers that they already own.
I checked out Pulsar quite awhile back and immediately canceled the
order when they wanted to charge $14 shipping on the 20 sheet pack of
transfer paper which shouldn't cost more than $2 to ship.