A portable solder fume extractor is a popular “maker” project…there are countless guides from Instructables, Make: and elsewhere. Most use two 9 Volt batteries and a voltage regulator inside an Altoids tin.

In this tutorial we’ll update this classic project with current materials and processes: a lithium-polymer battery, USB charging and a perfectly-fit 3D-printed case.

Placed close to your work, the fume extractor pulls away smoke when soldering. This makes a great companion to our USB Rechargeable Cordless Soldering Iron project. A single microUSB charging cable keeps all your portable electronics tools topped off!

Parts from Adafruit:

Also Required

Adafruit does not stock some of these items — they must be sourced elsewhere:

  • 5 Volt DC fan, 50mm square x 10mm deep. I used Digi-Key part #259-1576-ND (Sunon “MagLev” #ME50100V1-000U-A99). Not the cheapest fan, but this one provides a good balance between airflow (CFM) and static pressure (the fan’s ability to move air through filters or other obstructions).
  • 2 (two) #4-40 x 1/2 inch pan head machine screws and matching nuts (M2.5 x 12 mm might also work).
  • Activated carbon filter: smoke extractor refill such as Weller WSA350F or MCM Electronics #21-7961. Each sheet can be cut into 4 refills for our mini extractor.
  • Soldering iron and related paraphernalia.
  • 3D printer, or use a service like Shapeways or 3Dhubs.com.

This guide was first published on Feb 13, 2016. It was last updated on Mar 08, 2024.

This page (Overview) was last updated on Feb 11, 2016.

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