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Apr 16, 2003, 03:03 AM
jackman, tomer
jackman, tomer
Guest

[RCSE] VAC pump made easy



Here is a much cheaper and easier way (photo will be made available upon
request...):

Go to Wal-Mart and buy a tire inflator pump. $9.99.

On the way home grab a vacuum sensor (mounted on the distributor) from an
old German car at the junkyard ($1)

Some plastic tubing and a spring at the home depot ($5 max) and a micro
switch at Radio scrap ($1.99 !!!!).

Find the air intake and hook it all up together (that's easy, isn't it?).

Pulls over 30", no problem, and with a micro switch and sensor ,I can set it
up for 18" (or any other value) to keep the foam from collapsing. Also good
for molds ($ priceless).

Sure, it makes some noise and requires a 12V power supply, but when it
cycles over night, working off of the battery charger or an old car battery,
it's insignificant. And if anything can break, it's just a $9.99 pump
replacement....

Tomer
MA

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Apr 16, 2003, 03:03 AM
Ed Berris
Ed Berris
Guest

Re: [RCSE] VAC pump made easy


You know, that's a very inventive idea and the price is really right.

For those that want something ready to use right out of the box I have a
system that costs $150.00 but it sure is nice, reliable, heavy duty, easy to
use etc.

I'll forward a picture to you upon your request) If you are interested let
me know.
Ed

> Here is a much cheaper and easier way (photo will be made available upon
> request...):
>
> Go to Wal-Mart and buy a tire inflator pump. $9.99.
>
> On the way home grab a vacuum sensor (mounted on the distributor) from an
> old German car at the junkyard ($1)
>
> Some plastic tubing and a spring at the home depot ($5 max) and a micro
> switch at Radio scrap ($1.99 !!!!).
>
> Find the air intake and hook it all up together (that's easy, isn't it?).
>
> Pulls over 30", no problem, and with a micro switch and sensor ,I can set

it
> up for 18" (or any other value) to keep the foam from collapsing. Also

good
> for molds ($ priceless).
>
> Sure, it makes some noise and requires a 12V power supply, but when it
> cycles over night, working off of the battery charger or an old car

battery,
> it's insignificant. And if anything can break, it's just a $9.99 pump
> replacement....
>
> Tomer
> MA
>
> RCSE-List facilities provided by Model Airplane News. Send "subscribe"

and "unsubscribe" requests to soaring-request@airage.com. Please note that
subscribe and unsubscribe messages must be sent in text only format with
MIME turned off.

RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to soaring-request@airage.com. Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.


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