Now that I think about it, the paper was emulsion side down, and
floated on the laminar flow. I think - getting old, hard to remember exactly.
At 07:48 AM 4/29/2008, you wrote:
>Many years ago I built an automatic color print processor. The
>hardest part was getting a Laminar Flow across the surface of the
>paper so that it would develop evenly. I built a chamber with a lot
>of baffles that took the flow from a pump and spread it evenly
>through a slit at the top of a ramp where the paper was held. It
>worked great, but was only one sided. Doing this on both sides should
>be possible, but would take some experimentation.
>
>Mark
>
>
>At 06:12 AM 4/29/2008, you wrote:
> >That's a neat idea too.
> >Instead of spray etching why not "rinse etch".
> >
> >ST
> >
> >On Tue, Apr 29, 2008 at 12:41 AM, drpain1313 <yahoo@...> wrote:
> >
> > > Many years ago (10? 15?) when I used to do a lot more board building,
> > > I had bought a low-cost etch tank that used a pump to move the etchant
> > > over a ramp of sorts, where the pcb was placed. It worked quite well
> > > as I remember. I suppose this would be called a wave etch tank. I
> > > tried to search for this type of tank with no luck. Does someone
> > > still make these?
> > >
> > > Also, someone asked about the laminated copper foil I sell. The
> > > website is http://www.laserpcb.com
> >
> >------------------------------------
> >
> >Be sure to visit the group home and check for new Links, Files, and Photos:
> >http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
> >
> >
> >
>
>------------------------------------
>
>Be sure to visit the group home and check for new Links, Files, and Photos:
>http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
>
>