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Ideas for making a ~20" dia flat ring of flat aluminum?

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  • #16
    I think you are way over pricing your raw material
    70 bucks for 1/8 thick 2 x 2 6061 sheet is outrageous.

    Go here


    For one piece, its little more than half your price ( 43).


    If you are paranoid over cost, ( as I am sometimes, depending on use)
    just go to your local junk/recycle yard.
    I have bought Aluminum plate in great shape ( New sometimes) for a little (2x) over scrap price as they deserve a profit

    I bought a 3/4 6061 plate two years ago for 1/4 price new
    Green Bay, WI

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    • #17
      Thanks for all the great ideas!!!

      Yeah, laser or water cutting flat sheet seems the way to go. Winchman, those ring bearings are relatively heavy, between 4.5 and 7.5 lb depending on dia. This is for a theatrical novelty costume skirt like a tutu, even 4lb is a bit much. The rings held together with 4 "V-groove" bearings would be pretty light. A V-groove bearing has a groove around the outside so you can trap a track between a pair of them.

      Location: Jersey City NJ USA

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      • #18
        At only two pounds each, it seems like the lazy susan bearing would be lighter than the V-groove bearings and the structure needed to support them rigidly enough to work well.

        Product Specifications

        Product Name: Aluminum Lazy Susan Platform - 20
        Manufacturer Name: Johnson-Rose Corp.
        Product ID: JR9660
        Dimension (L x W x H): 20 x N/A xN/A
        Shipping Weight: 5 lbs.
        Product Weight: 2 lbs.


        Roger
        Any products mentioned in my posts have been endorsed by their manufacturer.

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        • #19
          Originally posted by winchman
          At only two pounds each, it seems like the lazy susan bearing would be lighter than the V-groove bearings and the structure needed to support them rigidly enough to work well.

          Product Specifications

          Product Name: Aluminum Lazy Susan Platform - 20
          Manufacturer Name: Johnson-Rose Corp.
          Product ID: JR9660
          Dimension (L x W x H): 20 x N/A xN/A
          Shipping Weight: 5 lbs.
          Product Weight: 2 lbs.


          Roger
          Those V bearings can be small as 3/4", so added to 2 1/8 rings it'd be roughly 2lbs. you could be right anyway since buying off the shelf is MUCH easier!

          The weight for the similar item from McMaster was 4.5 lb. Could they have quoted the shipping weight?
          Location: Jersey City NJ USA

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          • #20
            Cutting them from flat plate sounds like the fast and easy, therefore cheap in the long run, solution.
            James Kilroy

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