Hi guys!
Since a couple of people are interested in building their own fume extractor, I would like to show you my project and offer some tips:
As you can see, I used some scrap wood I had in the basement (screwed and nailed it in a rush, glue can work also but I didn't want to wait for it to harden
), a power PC fan 12cm (do not use a "silent" PC fan), a repurposed AC/DC supply, and the only thing I bought was the carbon filter 13cm x 13cm.
Pros this design: the filter can be removed for easy replacement/cleaning from dust and hair if needed
Cons: it needs more elevation; a pair of legs H-shaped would be nice about 2-2.5 inches high so you can work more comfortably with PCB's
I had no problem with airflow whatsoever but I should point out that my DC source is closer to 13VDC, so a bit higher than the rated 12VDC for these PC fans.
Also from my experience working with this DIY fume extractor I should point out that IMHO it is only sufficient for hobbyists working with small PCB's. If you plan to work with PCBs double the size of the fan, yeah you should probably get a better more powerful extractor, or you will need to move it around all the time so it will catch the fumes. But again... I haven't had the chance to test it under these conditions yet, seems logical anyway
George