FAN-L-R2
- It takes about
- 4hrs
- It costs about
- 50 EUR
- Difficulty
- Medium
- Power
- License
Fan Large
By following the instructions below and/or downloading the linked files you agree to the specified license agreement.
Tools
3d printer
Multimeter
Drill
Soldering iron
Screw_driver
Handsaw
Cutter
File
Computer
Material
Double sided tape
Aluminium Tube
Electric cable
Coloured Filament
Components
Weights
Electronic components
Downloads
FAN R2 - Tube Cap
1 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.
3.4. 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.
6.7. 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.
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.