Homebrew PCBs

You are not going to get near the needed pressure/volume from a peristaltic
pump to use spray nozzles. (unless it's HUGE)

Most commercial units use magnetic drive centerfucial pumps. The closest
your going find on the cheap end is a submersible (saltwater style) aquarium
pump. And that may or may not be compatible with your etchant. The ones that
have high pressure, use a ceramic shaft.

You can get 100%  plastic spray nozzles, that screw right on to threaded
PVC "T"s, Usually used for small decorative fountains.

A 300Watt submersible aquarium heater (again saltwater safe all
plastic/glass) will get a few gallons of etchant up to temp fairly quickly.



----- Original Message ----- 
From: "Leon Heller" <leon_heller@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Wednesday, February 18, 2004 4:02 AM
Subject: Re: [Homebrew_PCBs] Re: its me from the etching tank question
again!


>
> ----- Original Message ----- 
> From: "mumin55555" <MUMIN55555@...>
> To: <Homebrew_PCBs@yahoogroups.com>
> Sent: Wednesday, February 18, 2004 4:31 AM
> Subject: [Homebrew_PCBs] Re: its me from the etching tank question again!
>
>
> > can you give me a picture or be more specified on how to build it???
>
> The way I would make it is as follows: a tank containing a relatively
small
> amount of etchant in the base, with a heater, and a tube connected to a
> peristaltic pump delivering the etchant to the spray bars.
>
>
>
> Leon
> --
> Leon Heller, G1HSM
> Email: aqzf13@...
> My low-cost Philips LPC210x ARM development system:
> http://www.geocities.com/leon_heller/lpc2104.html
>
>
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