Picture of Mini Cardboard USB blade-less fan
i decided to make this mini blade-less fan as part of a couple of competitions that are going on at the moment, the green living and the USB competition, so if you like it, please vote

watch the video here
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Step 1: Parts

Picture of Parts
you will need:
A small DC motor
Any kind of Fan blade, in this case i used a laptop heat sink fan
A cardboard tube
2 sheets of A4 paper or card

Step 2: Make your internal fan

Picture of Make your internal fan
Simply attach your blade to your motor using hot glue

Step 3: Cutting

Picture of Cutting
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make two large circles by rolling the paper, and then they must be able to fit one inside the other, then trim them to size, ensure that they are both longer that the diameter of your tube
next, cut a hole in your larger tube that is the size of cardboard tube

Step 4: Fit the tube

Picture of Fit the tube
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splay one end of your cardboard tube, then fit through the hole and secure it, ensure that it is not covered in any way

Step 5: Insert the fan and secure it to the base

Picture of Insert the fan and secure it to the base
I used cocktail sticks that were glues to the fan, and then attached them to the base on the cardboard tube, i then attached the whole rig onto my breadboard, because it was the only thing i could find that would work, and it made it easy to connect to my power supply, feel free to use your inntiative for this step.

Step 6: Connect to the power

Picture of Connect to the power
Connect it to your power supply, either battery or USB cable and feel free to add a switch or something, to activate and deactivate it, thanks for viewing my instructable, have fun.
EdurusFas2 years ago
Hi! I was wondering what the breadboard has on it. I see a push button, but I am not sure if there is a resistor or anything else there. Thanks! :)
zack2473 years ago
quick question:
does it need to be a blower fan blade (laptop) or can it be just a regular one? (desktop)

this would be something neat to build with a 120mm fan.
guy coop72 (author)  zack2473 years ago
sorry for the very late reply, its just really more of an idea than a real guide line, im shure a 120mm desktop fan would be far better, although it might require strengthening the structure a lot, given the choice i wouldnt have made this out of card, but it was for the green living competition as well,
thanks for the interest
guy coop72 (author) 3 years ago
and yes i agree, the "bladeless" fans are a bit of a con, even the £200 dyson airblade "bladeless" fan does infact have blades, they are just hidden from sight giving the apperence of no moving parts
and they too have the "buffeting" they claim not to, its just indirect so its not as noticeable.
mwagner633 years ago
Do you just put the smaller tube in the middle and just let it sit there or do you have to seal it up somehow?
guy coop72 (author)  mwagner633 years ago
no, u can just let it sit there, but that lets the air flow in both directions, which is how i wanted mine, or u can easily cover the small between the tubes in one end and it should work better
cicusninja3 years ago
It is called a ducted fan.
guy coop72 (author) 3 years ago
thanks a lot for the comments.
Ranie-K3 years ago
I don't understand how this is blade-less. You're using blades.
The blades are hide to sight, but you are right. This concept exists since some years ago.

Anyway, I appreciate this instructable because I would never have thought of making one of these at home.
randofo3 years ago
You should post a comment with a link to this project to add it to the Cardboard Challenge here: