Bladeless Fan

Powerful desktop "bladeless" fan that uses a brushless motor

Maker/DIY

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Description

This is a replica of a popular "bladeless" fan that utilizes a unique airfoil-shaped ramp to increase airflow. It uses a 1100KV brushless motor and a 12 V DC PSU.

Materials and methods

Required parts:

- 1 x 1100KV Brushless Motor or similar. I used a Turnigy.
- 1 x standard ESC. The one I used is 20 A.
- 1 x Digispark ATtiny85 or any other Arduino that fits.
- 1 x potentiometer (6 mm shaft diameter) of 1 to 100 KOhm range. I used a 100 KOhm Alpha.
- 1 x female 12 mm 12 V socket.
- 4 x 8 mm round adhesive bumpers.
- 12 x M2 x 6 mm screws (9 of them are countersunk).
- 4 x M3 x 6 mm screws.
- Some small gauge wire.
- Silicone, superglue or similar.
- 12 V DC PSU (2 - 3 A).

You will have to upload the following program to the Digispark ATtiny85 in order to make it work:

https://github.com/EliteWorm/Bladeless_Fan/blob/master/Bladeless_Fan_V_1_0_0.ino

Connections:

- The Digispark ATtiny85 must be powered with 12 V DC (Vin and GND pins).
- The ESC must be powered with 12 V DC too (in parallel).
- The potentiometer outer terminals must be connected to the 5 V DC rail of the Digispark ATtiny85.
- The potentiometer wiper terminal must be connected to P2 of the Digispark ATtiny85.
- The ESC signal input wire must be connected to P0 of the Digispark ATtiny85.
- Connect the three motor phases and swap two if the direction of rotation is wrong.

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Comments

D5cb88c75896e34769d4e4e5b840bd26?default=blank&size=40Ritvik Pande added this to the Want to print collection ago
C3eb9bb6dde29c79ec65ebdf805ac8e9?default=blank&size=40cwalker74 added this to the Things to Make collection ago
6b3c3d19e3616d40e0b12879943a0390?default=blank&size=40Vaughnriding added this to the Make this collection ago
Mini elite worm white background v2Elite Worm published this design ago