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A 7 inch diameter mast, built from 7 inch, 6 inch, 5 inch and 4 inch tubes, with 3D printed components

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  • 02 Jul 2026 09:52
    Quote
    Reply # 13649099 on 13580811
    Anonymous member

    Thomas,

    Purely a guess, but the lower section might be 10 inches diameter x ¼ wall. The next section might be 8 inches diameter. I’d be reluctant to 3D print structural components until we have more knowledge, after some smaller rigs have been in use for a while. But the conical fairings at each step down would be OK, I think, after making the structural inner sleeves by some method that’s already been proven. 10in to 8in in four pieces 250mm high would be achievable on the kind of home printer that has a maximum print size of 250mm cube.  
  • 04 Jul 2026 23:39
    Quote
    Reply # 13649892 on 13649099
    Anonymous member
    Anonymous wrote:

    Thomas,

    Purely a guess, but the lower section might be 10 inches diameter x ¼ wall. The next section might be 8 inches diameter. I’d be reluctant to 3D print structural components until we have more knowledge, after some smaller rigs have been in use for a while. But the conical fairings at each step down would be OK, I think, after making the structural inner sleeves by some method that’s already been proven. 10in to 8in in four pieces 250mm high would be achievable on the kind of home printer that has a maximum print size of 250mm cube.  

    Thanks David, sounds sensible 
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