Hi guys I made this a few years back just to see if it could be done. I had not bought my MIG or Plasma yet so I had to borrow the neighbors for the stainless and used my Oxygen Acetylene for the regular steel. Hands down the noisiest and most impractical project I ever did. Good for New Years Eve and July 4th and maybe a kids science project. What was shocking was it actually worked not having any real plans. I made a tutorial when I made it and posted it on Youtube under "Triple intake pulsejet tutorial" parts 1 & 2 if interested.