Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Over the last 10 years I have been producing home PCB's with varying
degrees of complexity useing the traditional photo exposure method
with my local print shop providing 2400dpi negatives. I can reliabley
turn out boards with 35 micron tracks in 1oz copper which seems to be
the minimum width that most manufacturers can acieve reliably.
However I have noticed that Direct resist printing seems to be giving
some very good results with the mispro inks.
My question is what inks are availble in the UK as I can not seem to
find MISpro over here? Also has anybody looked at the Epson R285
printer as it prints CD's DVD which means the feed rollers must be
far enough apart to accept PCB's. I am going to look at one this
afternoon so will post a comment if it is suitable.
Going back to the inks has anyone tryed the Acrylic inks as I
understand they can be made inkjet compatible? and should also be
etch resistant.
I have tryed the laser toner tranfer method several times but I have
found it does not work to well with ground planned boards due to
toner density which after trying on sevral different media types and
printers I can not improve. It however gives some impressive results
with tracks down to 17 microns reliabley and cleanly being etched. I
have ordered a negative from my local print shop just to try useing
the best media I have found which they say will have uniform toner
density so we will see how this turns out.

Anyhow if anybody has tryed an Epson R285 I like to know what the
results were like and what ink you have use?