USB Solder Fume Extractor (HEPA + Sponge)

3D Printed USB Solder Fume Extractor (HEPA + Sponge)

Keep your workspace clean and your lungs safe! This is a compact, portable, and easy-to-assemble Solder Fume Extractor designed to be printed entirely on standard desktop 3D printers.

It utilizes a HEPA filter and a sponge pre-filter to capture particulates and extend the life of the main filter during soldering.

📐 Design Features

• No-Solder Assembly: The rear housing features a dedicated cable port insert. This allows you to route the USB cable through the frame without cutting, stripping, or re-wiring the fan. Just slide it in!
• Compact Footprint: Minimalist design that fits any workbench without being bulky.
• Dual-Stage Filtration: Uses a sponge pre-filter to catch larger particles and a HEPA filter for fine filtration.

🛠️ Bill of Materials (BOM)

• Fan: 1x 80x80x25mm Axial Fan (5V USB version recommended, but any other voltage will work with the right power adapter).
• Filters: This Filter Set from Amazon (Includes both HEPA and sponge filters).
• Hardware: 
  • 4x M4 x 35mm Socket Head Cap Screws.
  • 4X M4 THREADED INSERT – RX-M4X8.1
• Power: Any USB Power Bank or Wall Adapter.

🔧 Assembly Instructions

1. Print the Parts: I printed mine using PETG GF, but PLA will work either. No supports needed!
2. Filter Prep: Take the sponge pre-filter and slightly trim the corners with scissors to ensure a perfect fit inside the housing.
3. Cable Routing: Pass the USB connector/cable through the rear slot. Use the included small insert piece to secure the cable in place and seal the exit hole. No wire cutting required!
4. Stacking: Place the trimmed sponge into the intake, followed by the 80mm fan (ensure airflow is pointing towards the HEPA filter).
5. HEPA Placement: Insert the HEPA filter into the rear compartment.
6. Secure: Use the 4x M4x35mm screws to bolt the entire assembly together.