Homebrew_PCBs

Hi Stefan,

> Now you are starting to scare me. I also tried colophony resin,

also with

> some staedtler refill ink.
> You could've told me, you know, saved me the trouble and all... ;-)

I'd have done it if You'd have asked me before ;-)

> The laser will most likely not work because only about 50% of toner

is

> transferred without the static pickup, i doubt the R produces

enough toner

> so that 50% still resists.

AFAIR there where here a few members that did some tests to print
direct toner to copper. The most critical path herein I see is the
process behind. The toner doesn't be fixed enough because the heating
is too low for the metal. In laser printers it is designed to heat
paper fast enough anf preferabely fast! So I would remove all the
devices that may touch the fresh printed copper and fix the toner in
an oven. But I can't try out this now, next year, perhaps :-(

Martin

> One thing that could work is a silicone roller below the drum as a
> transfer roller, which picks up the toner (with static charge) and
> transfers it to a board running by below (which can be heated and

fuse the

> toner in the same step because the roller can be heat-proof

silicone. Not

> my idea either that one.
>
> ST
>