Homebrew PCBs

> 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.