Mating fire box to propane tank

Discussion in 'Side Fire Box' started by red12, Feb 10, 2015.

  1. Gentlemen,

    I apologize if this is the wrong place to post this so please direct me to the appropriate thread if I have erred. I need to cut the "birds mouth" out of the domed end of my propane tank to mate the firebox I just built to it. I have a plasma cutter, cutting wheels, levels, and squares. I just want to make sure that my cuts are even, level, and square. I need advice on how to lay this out properly and also maybe a few hints on how to put a makeshift guide so that when I cut it with the plasma that my cuts are as straight as possible. I'm a newbie to metal fabrication and have tried to do as much and learn as much on my own as possible. Any help would be greatly appreciated.
  2. Done a bit of measuring today but the layout doesn't look right.
  3. daveomak

    daveomak Smoking Guru OTBS Member SMF Premier Member

  4. I know this is an old thread but if it helps anyone I came up with my own solution.  I leveled the tank and used a transit (laser level) to mark the lines on the tank to make an accurate cut so that the curved surface of the tank fit the flat surfaces of the firebox.  The lateral line was drawn around the domed end first, then a 90 degree line was drawn and if fit right the first time.  Hope this helps another person out there like me who is not skilled in such matters.

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