DIY Welding Fume Extractor

[KustomsbyKent]

Yes, that's correct that MIG welding requires good gas coverage to prevent porosity in the weld.
After laying more than 240 inches of weld using the fume extractor, only one 2" weld had porosity because I had the cone edge less than 1 inch from the weld. I noticed that right away, and made sure to position it 6+inches away from the next welds, and then it was no problem.

The draft of air at the cone is relatively low volume, particularly with the long pipe that I currently have on it.

I intend to make further revisions to the setup, and make it so the pipes are on an arm that positions the cone over the weld. That would capture more of the fumes going up, make it easier to position over the weld, and more portable.

Things to do when I have more time!!!

Thanks for watching!

If you're curious, here's the frame that I was welding on and using the fume extractor...