Tiny USB Solder Fume Extractor

Portable Fume Extractor with Flash light

• 5V - USB compatible
• High brightness flash light
• High Speed Fan
• Compact & Portable
• Light in weight
• Multipurpose - Soldering, Air blower, Cooler, Lamp etc.,

A Tiny Portable Fume Extractor with Flash LED controlled by 2 latch push switches: This project involves designing a compact and efficient device that can extract fumes and smoke from a designated area. The device is equipped with a flash LED to provide illumination during soldering, rework or inspection. The compact size and simple operation make it ideal for use in small workshops, labs, or hobby areas.

• Power PCB
• LED PCB
• 12V DC FAN
• M3 x 10 mm CSK bolt - 3 Qty
• M3 x10 mm Standoff (bolt-socket) - 1 Qty
• Brass Inserts M3 - 2 Qty
• M3 Hex Nut of 1mm thickness - 1 Qty
• White diffuser plastic Sheet (40 x 13 x 1 mm) x 2
• Adhesive Rubber Bumper Pads (12.7mm width x 3.6mm thick)
• 5V USB Charger Brick
• 3D printed Parts
• Body x 1
• Cape x 1
• Caps x 2
• Tools
• Scissors
• Soldering Iron
• Screw Driver
• Multimeter

Print config: Medium/High Quality with 100% infill for better results

40mm Customizable Grill Covers:

https://www.thingiverse.com/thing:4837562/files

• Cut the diffuser plastic sheet with scissors for 40 x 14 x 1 mm

• A 12V High speed DC fan is used in the design, commonly these FANs are used in SMPS and server applications
• 40x28 mm - 2 wire DC fan
• DC FAN part number : OD4028-12HB
• Similar DC fan with various CFM, RPM and dimensions are compatible with the design (For better results select power less than 6W)

Two different custom designed PCBs are used in the setup:

1. Power PCB (USB Input, Control and LED drive)
2. LED PCB (White LEDs in parallel)

Schematic, BOM and Gerber files of the PCBs

Notes:

1. Verify the orientation of the push button relative to the image reference before assembly, as it is DPDT.
2. The MEL7135 delivers a constant current of 350mA. The PCB allows for the installation of 2 ICs, depending on the desired brightness and number of LEDs. The number of ICs can be adjusted accordingly.

• White SMD LED - 4 Qty
• Only 4 LEDs have been soldered and one driver IC has been installed.

White LED Part Number: JB5630AWT-P-H40GA0000-NZ000001

After PCB assembly,

1. Before connection of 5V USB, check for short circuit at FAN output and LED output with push button powered ON
2. Connect 5V USB and measure voltage at FAN output and LED output
3. FAN output --> 12V
4. LED output --> 5V
5. Trim the wires of Fan and LED PCB according to length
6. Solder the FAN and LED Wires and Power ON for test runs

Warning: Handle with care when the FAN is in operation, it spins at speeds above 8000RPM

• M3 Brass inserts x 3 is installed to the 3D printed BODY
• x2 on bottom
• x1 on top for PCB
• Insert the fan in the socket together with PCB and align it to the top mount hole and USB cutout
• Add M3 Standoff to the PCB through the body
• Slide the LED Diffuser plastic
• Slide the LED PCB

• Assemble the CAPE part to the body
• Fasten M3 x 10mm bolt to 3 brass insert sockets

Plug the USB cable and power ON to get the fumes out of your way

Incense stick smoke test for demonstration !!

Device is a bit loud due to the high RPM FAN, but works like a charm

Thank you !!

Instagram: @ideazero_