[TheForge] Dust/fumes mask

[Jerry Frost]

A downdraft welding/cutting table is basically a piece 
of bar grate over a plenum attached to a vacuum 
exhaust.

If you make the individual bars so they drop into slots 
in the frame you can turn them over when they get too 
beat up and it makes them easy to replace after they 
bet the tar beat out of them the second time.

If you make the plenum in a hopper shape the 
particulate debris can settle in an easy to clean out 
spot. It also gets the debris a little farther from the 
cutting jet so it doesn't get stirred up by it.

A trick to keep the draft up is to cover the portions 
of the bar grate with sheet metal or other nonflamable 
material. This keeps the vacuum up in the plenum so it 
draws well without having to use a super duper exhaust 
sucker.

Frosty
-------------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.

http://www.artmetalradio.com/

From: <PlumDon at aol.com>


> Kindest thanks for the suggestions re dust/fumes 
> masks. I have ordered some
> masks that have been recommended. Someone has also 
> suggested a downdraft
> table for welding. Does anyone know of any plans for 
> building this?
>
> Thankyou
>
> Don Plummer
>
>