FAN-L-R2

It takes about
4hrs
It costs about
50 EUR
Difficulty
Medium
Power
License

Fan Large

BEFORE YOU START

By following the instructions below and/or downloading the linked files you agree to the specified license agreement.

Tools

3d printer

3d printer

Multimeter

Multimeter

Drill

Drill

Soldering iron

Soldering iron

Screw_driver

Screw_driver

Handsaw

Handsaw

Cutter

Cutter

File

File

Computer

Computer

Material

Double sided tape

Double sided tape

Aluminium Tube

Aluminium Tube

Electric cable

Electric cable

Coloured Filament

Coloured Filament

Components

Weights

Weights

Electronic components

775 Motor
12V 12000RPM
ESP-32
Dev Kit C - 38 Pin
BTS 7960
Motor Driver
MP1584EN
5V Step Down Module
PDC004-PD - 12V Version
USB Power Delivery Trigger Board
Power Delivery Adapter
Ikea SJÖSS - 45W USB PD Adapter
We work hard to keep our links and components list updated, but It might happen that some of the components get discontinued. If you notice any anomalies with one of our components please let us know.

1 Overview

1.1. FAN-L - Components Overview

2 Printing

2.1. FAN-L - Printing the Fan

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

3 Preparation

3.1. FAN-L - Drilling the base

With the help of a drill. Prepare the 12mm holes for the cables and usb-c port passage.

Use the indentation on the walls to precisely locate where to drill.

3.2. FAN-L - Inserting the weights inside the base

Insert the weights into the base. Use about 2kg of material or until you're sure your base is stable enough.

Close the opening with the internal divider.

With the help of a file. Lightly smooth the hole to fit the usb-c holder, then insert the holder until it clicks.

3.3. FAN-L - Cutting the Aluminium Tube

3.4. FAN-L - Drilling the Cable Holes

With the help of a drill. Prepare the 12mm holes for the cable passage. Make sure that the two holes are drilled simmetrically.

3.5. FAN - Cutting the blades

Cut three 21,5 cm diameter wide circles from a sheet of 2mm cardboard.

3.6. FAN - Marking the blades

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

4 Colouring

4.1. FAN-L - SPRAY-PAINTING THE PARTS

To give a touch of colour to your prints, Follow our finishings guide, otherwise continue to the next step.

5 Assembly

5.1. FAN-L - Inserting the tube in the base

Insert the lower part of the tube in the base. The hole on the tube and the one on the base should coincide.

Lightly squeeze the tube locker trough both holes until the two parts are locked together. 

5.2. FAN-L - Wiring the tube

Cut approximately 1.5m of electrical cable and fit it through the two holes of the tube.

5.3. FAN - Bending the propeller

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.

5.4. FAN - Assembling the propeller

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.

6 Electronics

6.1. FAN - Removing the screws

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

Attention

Double Check that your step-down module is rated at 5V!

6.2. FAN - Cabling the Electronics

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

6.3. FAN-L - Inserting the boards in the enclosure

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.

Attention

Make sure that the copper wire does not touch any exposed pin on the pcb!

6.4. FAN - Connecting the touch sensing cable.

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.

 

6.5. FAN - Uploading the code

Download our Arduino code from the download section above.

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

6.6. FAN-L - Inserting the cap

Fit the cap through the tube.

6.7. FAN-L - Assembling the usb-c to the base

Flip the the usb-c port upside down and place it on the port holder. Tie a zip tie around the two components to fix the usb-c port in place.

6.8. FAN-L - Rotate

6.9. FAN-L - Motor cables

Plug in the motor cables to the motor driver.

7 Final Assembly

Attention

Due to the relatively high amperage, use a proper diameter power wire. We suggest at least an 18AWG rated cable.

7.1. FAN - Soldering the wires to the motor

Cut approximately 2.5m of electrical cable and solder it to the motor terminals. Insulate the connection with electrical tape or heat shrink if necessary.

Attention

Be Gentle! The shell is quite fragile by itself. The motor and the shell are complementary, when assembled the one gives strenght to the other.

7.2. FAN - Motor Assembly

Insert the motor inside of the 3D printed shell.

7.3. FAN-L - Assembling fan

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

7.4. FAN-L - Testing the Fan

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.

7.5. FAN-L - All done!

8 FAN-L-R2 is ready!

FAN-L-R2

Continue building