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Garden hose venturi pump

by jag, published

Garden hose venturi pump by jag Aug 23, 2012

Description

I designed this to mix a small amount of liquid fertilizer into a stream of water from a garden hose. I have a worm composter that produces quite a bit of liquid fertilizer and I wanted to dilute it and sprinkle it on my lawn.

Recent Comments

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I had the same problem with Slic3r too. I then used Blender to load the stl file and use the 3dPrint plug and click on Isolated button in the Cleanup section, then export the new stl file and slice the new stl file with Slic3r. And it works for me. I printed one out and test it with a garden hose. The only problem I have is it leaks with a tiny pin hole at the top of the hex area. probably need a dense fill pattern instead.
I used Slic3r (I know, I know...) and Cura. On a side note, how is Simplify3D? Some seem to love it, others not so much.
What are you slicing with? The included STL slices fine for me in skeinforge and simplify3d. No complaints at all from the slicer.
It's usually pretty hard to make non manifold STLs with openscad. It usually fails to export if it isn't manifold.

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License

Garden hose venturi pump by jag is licensed under the Creative Commons - Attribution license.

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Instructions

Print it out. Break out the little support cylinder in the bottom and cut out the think membrane over the hole.

Place a rubber washer in the female threaded end. Tap the vacuum port with a 1/8 NPT tap (don't force it and crack the plastic) The hole is already tapered so hopefully it shouldn't be too much work to tap it. Insert whatever 1/8" npt fitting you want into the port (JG fittings are nice)

Hook it up inline with your sprinkler or whatever.

I had the same problem with Slic3r too. I then used Blender to load the stl file and use the 3dPrint plug and click on Isolated button in the Cleanup section, then export the new stl file and slice the new stl file with Slic3r. And it works for me. I printed one out and test it with a garden hose. The only problem I have is it leaks with a tiny pin hole at the top of the hex area. probably need a dense fill pattern instead.
Really neat design, but it does not slice. It's not manifold and needs work in NetFabb to be printable, but the design is clever.
What are you slicing with? The included STL slices fine for me in skeinforge and simplify3d. No complaints at all from the slicer.
It's usually pretty hard to make non manifold STLs with openscad. It usually fails to export if it isn't manifold.
I used Slic3r (I know, I know...) and Cura. On a side note, how is Simplify3D? Some seem to love it, others not so much.
This looks perfect for a soap injector for my small power washer with garden hose hookup. I could then use a gallon of siding wash and have it suck it in before the power washer. All i need now is a anti flowback valve at the outdoor spigot so that soap can't get pulled back into the household lines and i would have something that costs around $80 online! Brilliant!
Hi, the scad file refers to this:

include

Is there a chance that you could share this too?

Many thanks!
question, do you sell these venturi's? if so How do I get one? Thx
Would this work for injecting bubbles or as a vacuum pump?
jag - in reply to nopoe
It should, it doesn't cut the bubbles up particularly small and I'm not sure how much vacuum it will pull. Maybe I'll put a gauge on it some time.
Printed on an Up?
Nope, a thing-o-matic at 80mm/sec (peak)
Wow, impressed.
Very nice! I've been waiting for a printable venturi something or other. Not that I need one, but it seems a natural thing. Actually what I really want to see is a printable vortex tube for cooling, now that'd be fun...
Chocolate Cooler(vortex tube): thingiverse.com/thing:19354
Chocolate Cooler
by Ioan
Thanks! I was a little surprised that there wasn't one already.

There were a few venturis around but none of them were openscad so, rather than bodge some threads onto one of the other designs I just started from scratch.
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