Homebrew PCBs

Quoth Mark Brueggemann at 2008-04-29 22:55...

> I had one for a while but couldn't find a pump that would 
> put up with the etchant (ammonium persulfate).  Whatever the
> answer is, the agitator or impeller needs to be isolated 
> from the drive source, and ideally it fits into a variety
> of tank sizes and shapes to accomodate one's varied applications.

You want either a magnetic drive pump (polypropylene would probably be a 
suitable material) or a peristaltic pump (actually a positive 
displacement pump - a set of lobes on a rotor squeeze a plastic tube to 
push the fluid along.)

Hae a look on eBay - you'd be amazed at what's out there.  Or probably 
you wouldn't - I never cease to be amazed though, even after my wife 
bought a grand piano through there...

Cheers

M

-- 
Matthew Smith
Smiffytech - Technology Consulting & Web Application Development
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