Homebrew PCBs

I've just built another one for the 
purpose of documenting it.  I will finish
taking photos and write up the whole thing
this weekend.

The whole thing takes between 5 and 10
hours to build and cost between $50 and
$100.  Thats for tank, motors, sprayers
PCB holder - the lot.

Just add FeCl3 or CuCl and a power supply.




--- In Homebrew_PCBs@yahoogroups.com, "jcarlosmor" <jcarlosmor@...> wrote:
>
> 
> 
> 
> Hi All,
> 
> Any update on DIY spray ecthing systems, or at least about the suitable commercial pumps?
> 
> Regards.
> 
> 
> --- In Homebrew_PCBs@yahoogroups.com, "cunningfellow" <andrewm1973@> wrote:
> >
> > 
> > 
> > > David wrote:
> > >
> > > Hi All,
> > > 
> > > Has anyone tried making this?
> > > 
> > > http://www.instructables.com/id/Printed-Circuit-Board-PCB-Sprayer-Machine/?ALLSTEPS
> > > 
> > > It looks very interesting!!
> > >
> > 
> > I would advise against it.
> > 
> > Acrylic is not suitable material with CuCl.
> > (PE,PP, PVC are all OK)
> > 
> > Conical spray nozzles wont get a uniform etch.
> > 
> > The high pressure pump is pressure relived AFTER
> > going outside the tank with tiny little flimsy
> > connectors.
> > 
> > See
> > 
> > http://www.prototrains.com/etch2/etch2.html
> > 
> > Where his spray etcher had an accident with large
> > barbed fittings and hose clamps.
> > 
> > and imagine how much fun it would be to have that
> > image at 3 min 21 sec into the video on the
> > OUTSIDE of the tank.
> > 
> > If you are going to spend 100s of $ on building
> > one, follow Adams build.  You will get good
> > results with the fan nozzles and motorised PCB.
> > 
> > If you only want small boards and spending $40
> > sounds like more fun, just be patient.  I am
> > working on my write up.
> >
>