Let's build a DIY fume extractor

spakhnyuk

New member
Although I still want to build a fume extraction unit with a filter, I have taken a different approach. I'm going to vent everything outside. Going to cut a hole in the wall, and connect an inline fan.
Ordered the the fan and loc line tubing on Amazon today. Of course not everyone has the luxury of being able to vent to the outside, but in my situation it's working out perfectly. What do you guys think about the idea? Outside the building we're most likely going to install a dryer like vent.

Here's what I ordered on Amazon today:

190CFM Inline Fan http://www.amazon.com/dp/B019INGAO4...TF8&colid=3FKDRUDHBC8BO&coliid=I190WNZEXIT7B5
4 ft of Loc-Line Hose http://www.amazon.com/dp/B006R9OV94...TF8&colid=3FKDRUDHBC8BO&coliid=I3DD8291O2Q3K5
Rectangular Nozzle http://www.amazon.com/dp/B00270F7L8...TF8&colid=3FKDRUDHBC8BO&coliid=I3M9FGJ50XITZ3
4" to 2.5" Reducer http://www.amazon.com/dp/B002DSDSY2...TF8&colid=3FKDRUDHBC8BO&coliid=I1RT2R22CF0S4H
 

mnaty

New member
The only problem i have with venting to outside is efficiency. If you are moving even only 150cfm...then you are dumping 1500 cubic feet of conditioned air every 10 minutes. That makes for a heafty ac bill and puts added strain on your ac system.

If you can do this in an isolated room with seperate ac... Such as a window unit then you should be fine.
 

mnaty

New member
Also, have you guys looked at fans yet. I dont recommend basic computer fans. Look at server fans as bare minimum. Much more torque and higher rpms, but they are louder. You can always insulate enclosure to muffle sound.
 

mnaty

New member
The one youre looking at is going to very large, but has good power for sure. Just make sure youre comfortable with the external dimension as that will be your bare minimum internal dimensions for your enclosure. These units are also very loud, so youll have make sure u insulate well without suffocating unit. Egg crate foam should work well for sound absorption

Also, still waiting to here back about filters.
Fyi: i googled "pleated fiberglass paper" and thats how i found suppliers to contact.
 

rany

New member
I did something on my bench until I could get a decent fume extractor. Got an old IBM power supply, added a power switch and alligator clips to the 12V, 5V, 3.42V, lines, and used the same to power a fan for extraction, that blows fumes towards a bigger ventilation fan at the window.
I use this set up as a bench power supply when I want limited amps (my DCPS dumps up to 20 AMPS and will fry a board if a line is shorted).
I flip the fan to cool a board as well.
So if possible to aggregate power supply with extraction it could be a good space saving trick for those who can't afford the bigger set-up.
 

rany

New member
Also I've been meaning to use something different: a suction blower that usually comes built-in into ironing boards, and are foot-pedal activated. It usually needs direct AC, a big cap, and that foot controller. I was shopping for a used one. They're pretty powerful. Alternatively, could have a normal knob/switch, but foot-pedal us nice as you can activate it only when soldering.
 

JorgePayar

Member
Also I've been meaning to use something different: a suction blower that usually comes built-in into ironing boards, and are foot-pedal activated. It usually needs direct AC, a big cap, and that foot controller. I was shopping for a used one. They're pretty powerful. Alternatively, could have a normal knob/switch, but foot-pedal us nice as you can activate it only when soldering.

that is a great idea
 

mnaty

New member
This is probably the best option so far. Hopefully this Chinese manufacturer sends me some info soon. I'm thinking their raw supplies could build the same filter for about $25. But this is just speculation.
 

mnaty

New member
This one i have heard too. But i really question this as the hoses are far enough down the stage that temps should have cooled to an acceptavle level. Of your referring to the loc-tite. Its not actually a hose its a solid material with a much higher heat dissappation than a rubber hose. However, checking the locktite site or with loctite support for actual temp ratings may be best. But they do list fume extraction as an intended use.

Also i will seperately post new filter info next
 
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