Hey Stefan,
Lighten up a little bit and stop kicking a dead horse, you made your
point. Not everyone wants to or has the room for the guts to an old
laser printer attached to a chicken barbeque motor on their
workbench.
True its a valid way to go, but a PITA to build. Some of us would
rather just buy a laminator that works. To each his own.
As far a double sided printing, the folded paper works fine.
Silicone anti slip is just extra work. If you must tie the silicone
coating into the process then put a strip along the edge of the RPP
to prevent movement!
Let's keep this a open discussion of the many ways to improve
homebrew pcb's rather than forcing one method on us all.
Myc
--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
> On Thu, 26 May 2005 22:26:57 +0200, Robert Hedan
> <robert.hedan@v...> wrote:
>
> > Has anyone figured out how to align the 2 sides for single-pass
transfer
> > for
> > 2-layer PCBs?
> > Silicone is non-stick, I'm not sure how to keep the 2 sheets
aligned
> > through
> > the laminator.
> > Robert
>
>
> luckily, if you coat the pages with high-temp silicone yourself it
is
> everything but non-stick, you can't slide a page coated in that
way
> against a smooth surface. (Kind of like the rubber mats for old
people to
> put in the bathtub so they don't slip).
>
>
> But, my method of choice uses a sheet of heavy paper (thin
cardboard) that
> is folded in the center.
>
> Your printouts must have a 3cm+ excess paper on one edge (same
edge).
>
> Align your printouts against a light source, no pcb inserted or
anyting.
> hold together with right hand on the center of the printouts.
> Now open the folded cardboard with left hand, and put the
printouts in it
> with the excess paper in the fold. hold the things together, from
the
> outside of the cardboard, over the excess paper. now open the
printouts up
> and slide PCB in (take care to get the component legend on the non-
copper
> side if you do one side copper and one side legend, don't ask...).
now
> hold together over the PCB (from outide the cardboard) and feed
into fuser
> with folded edge first.
>
> I usually give it a second run without the cardboard, for the
added
> thickness makes the heating take longer (I turn the thing over for
the
> second run).
>
> It works well.
>
> What i wonder sometimes is if it would be easier to sand one edge
of the
> board to a centered sharp edge and simply fold the paper over..
>
> ST