How to make a cheapo centrifuge for cleaning attys & cartos

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ronlitton

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Sep 22, 2010
40
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Monticello, FL
Using a centrifuge is an easy way to get almost all the e-juice out of an atty or carto. Here's how to make on for under $1.00.

Get 1 foot of clear plastic tubing from a hardware store (mine cost me $0.39 per foot). I cut off about 5 inches to make the centrifuge (the length isn't critical).

Then you will need the strongest thread you can find, and a needle big enough to accomodate the thread. I used some thread that I had for leather working, and a leather-sewing needle. I also used a pair of needle-nose pliers to push and pull the needle through the clear plastic tubing.

Push the threaded needle straight through the middle of the tubing, from side to side, about 1/2 inch from the bottom. Once you get the thread through both sides, leave about 2 inches of thread hanging out loose. Then take the needle and rotate the tubing 90 degrees and sew across the tube again. When you're done, you'll have a "figure X" or "cross" of thread, across the inside of the tube. Then cut off the needle and tie the ends together outside the tubing. That finishes the bottom of the centrifuge tube.

Now rethread the needle and push the thread through JUST ONE SIDE of the tubing at the top. It's easiest if you push from INSIDE the tubing to the outside. Then rotate the tubing 180 degrees and push the needle from the outside to the inside. Cut off the thread leaving about 3-4 inches of eash thread hangin loose from the mouth of the tubing. That way you have a single thread that goes into the tube, through one wall, then around to the other side of the tube, through that wall, and back out the mouth. Tie the 2 loose ends together, well away from the tubing's mouth, and you're done!

Just a note; I thought about doing all this "thread" work using cut-off solid guitar strings, which would make the device stronger. You may want to try this, and tape down the sharp ends on the outside of the tube.

To use the centrifuge, I drop a DEAD AAA battery down the tube mouth and let it rest against the thread "cross" at the bottom. Then I insert a carto or atty, opened up and with the open end down. I first put a "carto condom" over the open end, to catch the liquid I'm about to centrifuge out. Then I clip an ID card neck lanyard onto the centrifuge's top threads, and spin away! About 5 or 6 spins is usually enough to get the job done. If I don't care about reclaiming the e-juice, I substitute a cotton ball for the carto condom. Once finished, I can poke everything up and out of the centrifuge using any long narrow tool, like a chopstick or coffee stir stick or straw (that's why the open "X" in the bottom).
 

JC Okie

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Jul 2, 2010
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What's the purpose of the dead AAA battery? Just to add weight? I love the "innovation" opportunities that the e-cig market affords. Thanks for sharing this. I don't really ever try to get juice out of a carto because I don't put anything into a carto until I've tested it a few times and know I like it. I'm selfish with my cartos and what they get to have in them. Ha. I usually dedicate a carto to one flavor (that I love) and just keep refilling it with that one flavor until it dies.
 

bstedh

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Here is my take on the centrifuge idea.
centrifuge.png
 

ronlitton

Full Member
Sep 22, 2010
40
4
Monticello, FL
How about an even simpler and easier to build version, using an electric drill (which almost everyone will have access to, versus a CD spindle). Just cut a length of 1/2" ID clear plastic tubing, put a bolt thru the middle, screw a nut onto the other side. Put the carto in one side and put a toothpick across the tube to hold the carto in place but allow the liquid to get out. Then put a similar weight on the other side to balance the "drill bit". Stick the "bit" inside of a big bow or other container, and run the drill as slowly as possible, to spin out the liquid.
 

ronlitton

Full Member
Sep 22, 2010
40
4
Monticello, FL
Using an open-topped CD spinner as a centrifuge has some possibilities, but also some drawbacks. For instance, how do you catch the e-liquid thrown out, in such a was as to NOT contaminate the CD player? A little e-juice will dry and evaporate and really gum up the works of the CD player, not to mention making the mechanism oily and gooey. If you have a CD spinner that you don't need to use for anything else, go for it. Same applies to using an old record player turntable, if you have access to one. Just tape the carto to the outside edge, open end out, and rotate. Or you could even use a lazy susan with a bolt through the middle, and power it with an electric drill. Etc., etc. etc.
 

Stabbie

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Apr 1, 2011
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Sounds like a big PitA to me.

I simply just duct tape them to my ceiling fan, turn it on high, and go mow the lawn.
Put any material of your choosing on the end to catch juice and/or water. I just wrap a little paper towel around it.
You could just put your cart-condom on it to catch liquid.
One minute of work for hours of centrifuge fun IMO.

No ceiling fan? Then, yea, you're SoL. :)
 
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