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Rocket Grill!

Step 3Welding

Welding
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Weld together the vertical and feeder pipes.
That's easiest to do with both pipes laying flat and sideways. Weld around one side, then flip it over, and weld the other side.

Next, stand the Y of pipes on top of the base. Make sure it is centered, and that it is plumb and level.
Weld the pipes to the base. (Make sure to always brush down the metal where you will be welding, and where the ground clamp connects.)

The bottom of the water tank needs a hole cut in it, the same diameter as the vertical pipe. Mark that diameter hole on the bottom. One way to do that is just set the other parts right on top of the tank, and trace it.

Then cut the hole in the bottom of the tank. I had a plasma-cutter at a friend's house, so I used that. Otherwise, a cut-off disc, Sawzall, or large diameter hole-saw could work.

Stack the whole grill together upside down and weld the vertical tube to the water tank section. Again, make sure the parts are plumb and level. If there is a "front" to the water tank, make sure it's where you want it to be. On mine, there were two pipe ports that I wanted to be left and right, with the feeder tube on an angle to my right as I faced it.

At this point, the basic grill is done, but we still need the lid and a few other details.
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Author:bennelson(300MPG.org)
Ordinary guy with no special skills, just trying to change the world one backyard invention at a time. See more at: http://300mpg.org/ On Twitter - @300MPGBen and at Ecoprojecteer.net