Solder fume extracter and lamp

by sman_dk, published

Solder fume extracter and lamp by sman_dk Nov 2, 2016


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See a short demo of the lamp on Youtube: https://youtu.be/Z-aCkDBhwaY

I needed something to remove the smoke when soldering and build this USB powered solder fume fan lamp with an ESP8266 arduino, WS2812b/Neopixels, a fan with an active coal filter and a PIR sensor.

The case is lasercutted in 4 mm plywood.

When there is no movement beneath the lamp the fan turns off after e.g. 60 seconds (can be extended to e.g. 1800 when holding down the fan button) and the LED turns off after 1800 seconds of inactivity. The LED intensity can be dimmed by holding down the LED button.

Parts list:

The case is glued together with normal wood glue and the PIR sensor and the WS2812b Neopixel strips are glued against the case with cyanoacrylate. The DC-DC converter is fixed with a cable tie. The Wemos D1 mini is fixed with a small bolt through a drilled hole in the ProtoBoard. The capacitor and the level shifter is glued with a hot glue gun. Be aware that there is very little room for the boards and the wires. If I were to build it again I would make some more room. Also the "stack" of the Wemos ProtoBoard, D1 mini and RelayShield is higher than the fan + activated coal filter, so it sticks out of the top, which I think is fine. All the parts do not need to be hidden away for the eye to see :-)

The software is available at:
Since the ESP8266/Wemos D1 mini has wifi capability future improvements of the software will of course be to make it controllable via wifi :)

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Hey there, I'd like to make my own lamp based on your design. But I'm asking myself: Where did you get the laser cut wood in Europe? And which tool did you use to make your designs?
Thanks in advance.


I used OpenSCAD to design it. Please send me a link to your design when you are finished. Inspiration is always god :-)

You are welcome to swing by in Aalborg, Denmark. We have a laser cutter that you can use. I am assuming you live in Germany, so that might be a little too far, however maybe CCC or some other hackerspace in your area might have a laser cutter.
There are also some online companies that do lasercutting (I have zero experience with these, we just received an advertising from one of them at our hackerspace a few years ago).

I really like the idea, but do you have an idea of how much of the toxic smoke it removes or just blow around?

Hi Martin

No do not know how much it removes. Hakko and others sell fume extractors that use activated coal filters and it is the same type of filter I am using (I bought it on Ali Express). Even if the filter does not help that much, the fan blows the fumes away from my head and if I ventilate the room know and then the result should be much less fumes in my lungs.