Adjustable platform

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  • UK mark
    Senior Member
    • Nov 2018
    • 195

    Adjustable platform

    Ventured into making an adjustable speedbag platform, steel box section with 3 inch steel threaded pipe, this will be for myself to use in the garage, I've also got 3x beams of Solid oak ( 3
    Attached Files
  • UK mark
    Senior Member
    • Nov 2018
    • 195

    #2
    It seems half of the description is missing... 3

    Comment

    • dad
      Speed Bag Guru
      • Dec 2018
      • 480

      #3
      Looks really interesting. Is the adjustability function performed by the threads in the pipe? Also, is the pipe hollow all the way to the bottom?

      Comment

      • UK mark
        Senior Member
        • Nov 2018
        • 195

        #4
        Yeah I've had the hollow pipe machined to the same thread pitch as the collars, fine pitch for less movement, then another collar to act as a lock nut when desired height is required

        Comment

        • UK mark
          Senior Member
          • Nov 2018
          • 195

          #5
          Originally posted by dad View Post
          Looks really interesting. Is the adjustability function performed by the threads in the pipe? Also, is the pipe hollow all the way to the bottom?
          Yeah pipe is hollow as a solid pipe would probably be so expensive and heavy

          Comment

          • dad
            Speed Bag Guru
            • Dec 2018
            • 480

            #6
            Looking forward to seeing it perform. I asked about the pipe because if it is hollow, you might think about filling it with fine beach sand. Keep us posted please.

            Comment

            • UK mark
              Senior Member
              • Nov 2018
              • 195

              #7
              Originally posted by dad View Post
              Looking forward to seeing it perform. I asked about the pipe because if it is hollow, you might think about filling it with fine beach sand. Keep us posted please.
              Ah , good idea, I'll definitely try that
              was also thinking about attaching mini struts to the outer perimeter of the top face of the drum to the pipe somehow

              Comment

              • dad
                Speed Bag Guru
                • Dec 2018
                • 480

                #8
                OK, but I think I'm losing something here, where exactly is the drum going to attach, the short part of the threaded pipe?

                Comment

                • UK mark
                  Senior Member
                  • Nov 2018
                  • 195

                  #9
                  Originally posted by dad View Post
                  OK, but I think I'm losing something here, where exactly is the drum going to attach, the short part of the threaded pipe?
                  Oh ...let me explain, the threaded pipe is too long at the moment as it's still in its fabrication stage, I've left it long as I've been welding it all together, now I'm at the stage where I can cut the pipe down to the required length, the drum will be mounted to a steel plate that will also be welded to the bottom of the pipe, similar to the platform by first rate boxing

                  Comment

                  • dad
                    Speed Bag Guru
                    • Dec 2018
                    • 480

                    #10
                    Got it. What range of the adjustability are you looking for?

                    Comment

                    • Zaza
                      Speed Bag Guru
                      • Apr 2011
                      • 2000

                      #11
                      Nice project! Keep posting as you go & best of luck. This is a lot of work, but it will be worth it.
                      Art of the Bag - A Speed Bag Story
                      http://www.artofthebag.com

                      Comment

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