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This is an easy to build vacuum chamber that is power with a garden hose. you can draw 30 cm of vacuum with your hose. simple and easy way to deg...
you will need the following parts. many of they can be found or scrounged for free is you have the time. 1 - 6" x 24 " PVC pipe ...
this little thing can draw up to and in some cases even more than 30cm of vacuum with only a garden hose. and a only $24 it beats the hell out and exp...
The top and bottom are 1/4 " acrillc . Just trace the tube. Find the center point, and make a circle and inch farther out. cut along the outside line....
use the top and bottom pieces to trace around with a knife to cut out the neoprene. find the center and then cut out the center circle by hand.
drill tow hole just a little bit smaller than the fittings (the vacuum gauge came with a bunch of extra fittings) heat up the fitings with a soldering...
This is the tough part. if you are lucky the pipe you have will have good edges. This one did not. gab a piece of sandpaper and hold it down with the ...
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Um... What about the "pump" part? You showed several brass attachments and you mention a garden hose, but there's no pump here anywhere or am I missing something? Because a vacuum chamber without a pump is just a pretty tube.
The "pump" part is the flow of water through the nozzle. Air is sucked out of the chamber by the Venturi effect: http://en.wikipedia.org/wiki/Venturi_effect
Also see Bernoulli's principle: http://en.wikipedia.org/wiki/Bernoulli%27s_princip...
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