Homebrew PCBs

I've been lurking too, Chris.  I once tried to use Mucilage glue that
one guy said he likes to use applied to paper and hung to dry....
well, my experience on that was that the paper wrinkles rather
badly 'cuz the glue is wet.

I thinking that the gelatin might also wrinkle the paper like the glue
because it is mostly water.  I hope I'm wrong on that (re: the
wrinkling).

It kind of sounds like the gelatin mix could actually be sprayed on,
maybe on
something besides paper to avoid the wrinkling?

So, has anybody tried the gelatin on paper yet?

Charlie

On Sun, 5 Jun 2016 07:00:32 +0000 (UTC) "Chris Tofu
indiscreetlogic@... [Homebrew_PCBs]"
<Homebrew_PCBs@yahoogroups.com> writes:
  
I didn't even think you could buy it.


Been lurking for a while.



Anyway, I attended a informal discussion of a new fandangled method of,
technically I guess, toner transfer. Utilizing Knox brand gelatine. Like
Jello, but no flava. Let me see if I can remember the procedure.


Whatever the recipe is for plain gelative, use 3x as much water. IIRC one
packet requires dissolving in 1/4 cup of cold water, with 1 3/4 cups of
boiling subsequently added. So therefore to 1 packet add 3/4 cup cold
water, dissolve, then 5 1/4 cups of water, for a total of 6 cups. Now
that's a lot of gelatine, so you may want to "cut" the packet into
portions w/a razor like a coca cola dealer :). Use your discretion. Just
don't snort the stuff.


 Um while still a liquid (presumably it'll stay a liquid, too thin to gel
but what do I know), paint with a cheap paint brush on to sheet/s of
printer paper. Maybe let it cool a bit before painting? Let dry. When
dry, print your artwork onto these sheets (on the Knox side obviously)
using a copy machine (I don't remember inkjet printers being acceptable).
Then you would iron those sheets onto copper board (using a cloth between
iron and sheet), with steam IIRC. I think you could also bake it in the
oven for a while to harden it, can't remember the details, maybe 100
degrees for an hour? Most ovens don't go down that low, so improvise I
guess.


 I haven't tried it yet, but was told it's basically fool proof. Unlike
the standard commercial toner transfer sheets which is so error prone to
make it unacceptable. Give it a shot, let the group know. Any questions,
feel free to ask, I'll do what I can to answer them.