Bladeless Fan

thingiverse

Desktop "bladeless" fan. You will need silicone or any other glue to join two parts. 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.