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$20 homemade vacuum pump plans


#1

Did someone ask about plans for a homemade vacuum pump here ?

http://web2.airmail.net/redmonj/sucker.htm


#2

Hi Mike,

Thank you, thank you. I downloaded the whole thing and will
give it a shot.

I very much appreciate your making this info available.

Nina
Nina - Silver Design, 9122 S. Federal Hwy, Suite 249,
Pt. St. Lucie, FL. 34952 : Toll Free:1-888-460-1800
URL: http://www.nina-sd.com : Email: @Nina

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#3

Mike McKim wrote:

Did someone ask about plans for a homemade vacuum pump here ?
http://web2.airmail.net/redmonj/sucker.htm

While this setup is probably ideal for building aircraft, it is
a bit under powered for jewelry investing and casting. A vein
type auto air conditioner pump with a 1/2 hp motor should
evacuate a bell jar in less than 30 seconds. The one I built took
about 15 seconds to evacuate an oversized bell jar. A
refrigeration pump will take quite a bit longer, and wont have
the sufficient cfm air volume for casting anything but the very
smallest flask.

Robin Casady
http://www.scruz.net/~rcasady/

Macintosh software for:
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