After downloading the files (3D print section above) download and print the pieces with the following printing settings:

Printing the base

Nozzle: 1,2 mm, for a riffle effect download our Print settings
Material: PETG
Layer height: 0.8 mm

Printing Pieces:

Nozzle: 0.4
Material: PETG
Outer Walls: 5
Infill: 33%
Layer height:0.2 mm

With the help of a drill. Prepare the 11mm hole for the cable passage.

Cut two half-circles of the self-adhesive felt, leave a slot of about the diameter of your electric cable, and attach it at the bottom of the base. Make sure to have ca.5mm between the edge of the felt and the base

With the help of the provided guide, mark the centre and the outside of the previously cut circles.

Cut approximately 1.5m of electrical cable and solder it to the motor terminals. Insulate the connection with heat shrink if necessary.

Insert the motor inside of the 3D printed shell.

Gently bend the propeller wing and insert the clip inside the slot.

A clicking sound confirms the correct insertion of the wing.

Repeat the process for the other wings.

With the help of some double-sided tape, attach the circles to the propeller head. Pay attention to aligning the previously done markings with the slots in the propeller blades.

Carefully assemble the fan structure as shown in the drawing underneath.

Slot the power cable between the previously attached felt base.

It is now time to program the power delivery sink board to deliver 12V DC.

• - While holding pressed the button on the small sink board, plug in your USB Power Delivery compliant wall adapter.
  
  
• - The LED on the board must now be flashing.
  
  
• - Connect your Multimeter to the output pads on the board and monitor the voltage.
  
  
• - Press the button on the board until the multimeter reads 12V dc.
  
  
• - Long press the button to save the configuration.
  
  
• - Unplug the USB cable and your multimeter.

Unscrew the two screws holding the motor driver heatsink and remove it.

With the help of jumper cables and AWG 18 cabling, connect the electronics modules following the simplified diagram.

Insert the previously cabled board inside the electronics enclosure.

In order for us to simplify the drawing we did not include cabling in the illustration.

Plug in the motor cables to the motor driver.

Strip 20mm off the green cable connected to the ESP32 Board.

Make a loop around a screw with the exposed copper section of the wire. Re-attach the heatsink to the pcb board with the previously removed screw.

Download our Arduino code from the download section above.

To upload the code to the ESP32 follow this video guide.

It is now time to test the fan and ensure its correct operation.

- Connect your wall adapter to the fan electronics. Press the heatsink on top of the electronics unit.
 

- Check that the fan is spinning.

If the fan does not spin, check your cabling. If the fan still does not spin try changing the sensibility of the switch by modifying the following line of code:

"const int threshold = 2;"

Try lowering the number to 1 to increase the sensibility.

To avoid fake touch detections do the opposite and increase the number.

If the fan spins in the wrong direction invert the order of the fan cables connected to the motor driver board.

If the fan is working as expected proceed to the next step.

By pinching the lid, compress it to fit inside of the electronics enclosure.