Re: [APML]: improving Tech Pan development

[Alfredo Zanazzo <alferd@mbox.lol.it>]

Peter Drumm wrote:
> 
> 
> On Sun, 13 Oct 96 16:59:10 EDT, Joseph O'Neil wrote:
> 
> >  That is an interesting idea.  I just may have ause for my old rock
> >tumbler!  It is designed to turn continusly at low speeds.  I think I
> >will try something out, and let you know.  thanks for the idea.
> >joe
> >
> 
> I use a modified rock tumbler for turning my color print drums. It a
> lot easier and more consistant than doing it by hand :) I've been
> toying with the idea of building something for the film tank, will
> probably get at it this winter...
> Peter Drumm
> pdrumm@dwave.net <http://www.dwave.net/~pdrumm>
> Wausau, Wisconsin
> OS/2 Warp 4-IAK-Neologic Netsuite-PMMail-iLink/2.

If you do it, remember to add friction to the rotation: it is the most
important factor: chemicals must rapidly and constantly move over evry
squared millimeter of film.
If the base where you fix the motor has a small inclination angle, you
add a tilt also that helps, as it helps even a timer-inverter switch to
change rotation several times during process.
The pot i have used has grooves on external surface so that a piece of
plastic in contact with it produces required vibration.
Ciao
-- 

--
Regards, Alfredo Zanazzo ( alferd@mbox.lol.it )

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