[alt-photo] Re: Vacume pumps

[Kevin Morris]

That is something I've been considering. However, that would mean
redesigning how we get the vacuum into the print rooms. I'm not ready to do
that yet.

Kevin

----- Original Message ----- 
From: "Kenneth Watson" <watsok at gmail.com>
To: <alt-photo-process-list at lists.altphotolist.org>
Sent: Thursday, February 18, 2010 11:32 AM
Subject: [alt-photo] Vacume pumps


> An alternative, which may have already been mentioned, to common
> vacuum pumps are even more common automotive air conditioning vacuum
> pumps.
>
> These are used to evacuate air out of car air conditioning systems.
>
> The issue to watch is volume of air that needs removed at a specific
> vacuum. If you have a relative tight seal around the area where you
> are drawing vacuum it should not be an issue. If you have a leaky
> frame this might not be a good solution. Car systems are assumed to be
> leak free.
>
> I do know these pumps are also used to vacuum bag composite structures
> (carbon fiber) but the draw down time for them is not an issue as they
> bag for hours until the resin is cured.
>
> These can be found on ....ebay of course.
>
> Just a thought,
>
> Ken Watson
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