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Tesla valve: print in one piece one way valve

by mymakerblog, published

Tesla valve: print in one piece one way valve by mymakerblog May 25, 2013

Description

My version of a one way valve with no moving parts invented by Nicola Tesla. Prints in one piece with no support material. It's still a work in progress. The first version only kind of works. You can find out more at my blog:

http://mymakerblog.wordpress.com/2013/05/25/tesla-valveprint-in-one-piece/

Update:Ugh, the second version I uploaded, might have been upside down. :(

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because tesla totally had a 3d printer
I mean that perhaps we can use a fluidic diode, or many of them stacked, as a one way valve?

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because tesla totally had a 3d printer

<p>I’ve tried printing a two part valve available here at thingiverse and glue it together.</p>

<p>It seemed to have more flow resistance in the free flow inlet direction than in the blocking direction...</p>

<p>I also tried to design a "new" Tesla like structure, but it had the same problem, the flow resistance/back pressure seemed higher in the wrong direction.</p>

<p>None of them had any very significant back pressure difference.</p>

<p>Btw. I printed mine laying down</p>

<p>I mean that perhaps we can use a fluidic diode, or many of them stacked, as a one way valve?</p>

<p>Yeah, I was thinking that perhaps a better design would be to use apparent centrifugal force to create a one way valve. Kind of like this:</p>

<p>http://www.thingiverse.com/thing:15684&lt;/p&gt;

Fluidic Vortex Diode

<p>Ok, so this actually doesn't work. I left out a fin, a fin that... cannot be printed vertically. That is, I can't incorporate this fin and still print the whole thing in one piece :(</p>

<p>Figured it out. I included the guiding fins but the whole thing doesn't work very well still. Well sh*t.</p>

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