A blog about all of the crap I have built and projects I am working on. Electronics, metalworking, woodworking, gunsmithing, crafts, etc.
Saturday, April 28, 2012
Soldering Fume Extractor
As I started doing more electronics work I realized that a fume extractor would come in really handy for sucking the flux fumes from my face. So I dug through the junk pile and built this one. Everything was from my pile of parts with the exception of the charcoal filter.
The aluminum case was from an old air monitoring unit. Suction comes from an old 12v computer fan. I cut the hole with a large hole saw and covered the fan with a grate from some old piece of equipment.
switch and power jack
The circuit is pretty simple. Just a switch, 1/8" female power jack, and a 7812 12v regulator; all reused from junked equipment. Power comes from a 16.5v 300mA switching power supply from a junked rechargeable vacuum. With the voltage regulator, you can power it with anything up to 30v.
I used some rivet nuts in the case to make the cover removable with thumb screws. The center of the cover was cut out with nibblers. I purchased a charcoal filter originally intended for a smokeless ashtray and inserted it under the cover. With the filter it doesn't just blow the fumes away, it should capture the fumes resulting in cleaner air. Finally, I mounted it to a gooseneck from an old desk lamp. Easy project, works great, and keeps you healthy!