--- Matthew Smith <
matt@...> wrote:
> You want either a magnetic drive pump (polypropylene would
> probably be a suitable material) or a peristaltic pump
The issue I had with the DynaArt setup was that it used a
particular size and style of pump, so selection for alternates
was limited. The primary failure mode was the bushing bearings.
They would just disintegrate after a few uses. Rinsing with
fresh water didn't help. I gave up.
The idea I was going to pursue is like photographic developers
use, where a cylindrical tank is partially filled and rotated
on a set of rollers. Experimentation would reveal if more even
etching would occur if the board was secured or loose in the tank.
Just a rotating variation of a rocking tray, I guess. Trying to
get away from pumps, too many issues.
Mark B.
Albuquerque, NM