Multifunctional welding filter fan

Multifunctional Welding Filter Fan
Project Introduction:
Project Link (3D printed models can be downloaded from Github or the attachment)
Github Link: https://github.com/physicsexpert/Multi-function-welding-filter-fan
Materials Required:

Welding fan speed control PCB board (in the hardware folder) and 3D printed parts (in the model folder)


, 4 M3×45mm screws, 4 M3×10mm screws, 8 M3×6mm screws, 4


M3 nuts, 12


M3×5mm×4.2mm hot melt nuts, 1


Delta 6038 fan, 1


piece of activated carbon filter cotton , 1


self-locking button switch, 1


XH2.54 connecting cable, 1


anti-slip foot,


1 soldering iron stand (I used a mini soldering iron stand from Zhengdian Atom).

Assembly Method:

Print all 3D printed parts and use a soldering iron to press the hot melt nuts into the 12 openings.


Solder the wires to the four pins corresponding to the self-locking switch, paying attention to the positive terminal of the indicator light and the switch pin. Connect the same wire to both sides. Connect one wire to the negative terminal of the indicator light and another wire to the other side of the switch. Pass the switch wire


through the circular opening in the base and tighten the fixing nut


. Solder the wires on the switch to the control board. Connect the positive terminal of the indicator light to +12V and the negative terminal of the indicator light to GND. Connect the wire on the other side of the switch to VBUS. After soldering, place the control board into the base


. Pass the four wires of the fan through the small opening in the top cover and connect them to the XH2.54 ribbon cable. Note the connection sequence (red for power, black for ground, blue for PWM signal, yellow can be left unconnected). After connection, plug the XH2.54 ribbon cable into the control board

. Tighten the eight screws on the top cover.

Tighten the four screws and nuts on the fan.

8. Fix the soldering iron stand to the top cover (using double-sided tape or glue).

Tighten the four screws on the top cover.


Place the filter sponge into the filter pin and insert it into the machine. Insert


the solder wire holder.


Install the potentiometer knob and feet.


Installation complete.

Precautions:

Please be sure to assemble according to the assembly sequence given in the instructions, otherwise, installation may not be possible.
Please use a charger that supports PD/QC fast charging protocol, otherwise, high voltage may not be induced.
The fan speed is very fast, please pay attention to safety when using it, do not touch the fan blades with your hands.
Please use a high-density filter to ensure the solder fume filtration effect.
Please use an FDM printer to print, which can facilitate the installation of the hot melt nut.
When soldering, pay attention to the wiring of the switch pins and the correspondence of the PCB board solder points.