Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Another wannabe Direct printer
From: "kpyro2" <justnoone@...>
Date: 2007-03-31
I have been making PCBs about just about every homemade method for a
while currently I am using Kepro NEG dry film. But looking for a
faster CAD to finished board.
Well the direct method looks good I thought years ago about trying to
convert a copier to transfer the toner directly to the baord but thats
as far as I got.
Anyway I have convereted a C84 Epson to print on some thin copper clad
I am very disapointed in the results I have major pitting on the
etched PCB.
I am using the genuine Durabrite inks.
I have tried yellow magenta and cyan even tried black.
yellow looked best but still not even usable.
Tried pre-etching + Preheating.
Tried FeCl and Sodium Persulfate.
Why do the color inks not laydown solid like the black they have an
orangepeel texture? Black looks solid but doesnt hold up.
All inks look solid when printed on paper.
I think if I could get yellow to cover like the black it would work.
I tried to use the durabrite ink as a blocker and tinplate and use the
tin as the etch resist but the durabrite didnt even holdup to the ITP
plating.
Oh well enough rambling throw in your input or questions and I'll keep
plugging away.
I may settle for using this to print NEGs for the dry film the black
on transparencys is way better than I expected that would speed things
up I wouldnt have to wait for the NEGs to be made.
I will try and post some pictures Sunday.
Later
Ken