Torsion box top

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  • LinuxRandal
    Veteran Member
    • Feb 2005
    • 4890
    • Independence, MO, USA.
    • bt3100

    #1

    Torsion box top

    The large workstation idea's thread made me think. I have a 2' square, 1/2" thick, piece of glass, from a friends estate, that I wanted to make into a scary sharp table. The workstation post mentioned a lighted table, and a torsion box would lead to that, but, does the top have to be mounted or can it be just set down (so I could swap it later, change the bulb, etc).
    TIA
    She couldn't tell the difference between the escape pod, and the bathroom. We had to go back for her.........................Twice.
  • LCHIEN
    Super Moderator
    • Dec 2002
    • 21765
    • Katy, TX, USA.
    • BT3000 vintage 1999

    #2
    it's going to be pretty heavy, at1/2" thick.
    Many furniture items with a thick glass top simply have the top set on a base using gravity only to hold it (any maybe some non-skid bumpers) provided the table is stable.

    You could pretty much set it into a recess and will be fine. Gravity is a wonderful thing... there has never been a general gravity failure!
    Loring in Katy, TX USA
    If your only tool is a hammer, you tend to treat all problems as if they were nails.
    BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions

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    • BobSch
      Veteran Member
      • Aug 2004
      • 4385
      • Minneapolis, MN, USA.
      • BT3100

      #3
      Originally posted by LCHIEN
      Gravity is a wonderful thing... there has never been a general gravity failure!
      But there have been several severe local gravity disturbances. I felt one the last time I was out imbibing
      Bob

      Bad decisions make good stories.

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      • gerti
        Veteran Member
        • Dec 2003
        • 2233
        • Minnetonka, MN, USA.
        • BT3100 "Frankensaw"

        #4
        Originally posted by BobSch
        But there have been several severe local gravity disturbances. I felt one the last time I was out imbibing
        Sure, make me look up stuff in the dictionary...

        Back to the original post: If you 'just set down' the glass on the ribs it will not be a torsion box.

        Comment

        • mdutch
          Established Member
          • Nov 2005
          • 140
          • Dallas, TX, USA.

          #5
          1/2" glass is heavy and a tiny clink can cause a major chip. So how about not removing it?

          Since torsion box partitions will potentially interfere with the lighting, use torsion-box construction for the outer "frame" part, and leave the center (glass) area open and free of interior partitions. Then you can put the fluorescent lighting in some removable "drawers" in the body of the box so you can pull them out for easy bulb-changing.

          If the glass is clear, put a milk-white plastic diffuser beneath and you should get even lighting.

          Just one man's opinion...
          Dutch·man Pronunciation (dchmn)n.
          3. Something used to conceal faulty construction.
          Another DFW BT3'er!

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          • RickCarpenter
            Forum Newbie
            • Jan 2006
            • 48
            • Huntsville, East Texas.

            #6
            Originally posted by mdutch
            Then you can put the fluorescent lighting in some removable "drawers" in the body of the box so you can pull them out for easy bulb-changing.
            This is a good idea, but LEDs might be cheaper and easier and you could mount them in holes drilled in the back. I would suggest making the box ribs out of clear acrylic, the top out of translucent acrylic, and the bottom and sides out of whatever. This way you'll keep it a torsion box and not just a box. Make the sides tall enough to hold the glass sheet in but don't permanently fasten it, so it is replaceable.

            Rick

            Comment

            • 25
              Established Member
              • Jan 2004
              • 294
              • League City, Tx, USA.
              • BT3100

              #7
              Originally posted by RickCarpenter
              This is a good idea, but LEDs might be cheaper and easier and you could mount them in holes drilled in the back. I would suggest making the box ribs out of clear acrylic, the top out of translucent acrylic, and the bottom and sides out of whatever. This way you'll keep it a torsion box and not just a box. Make the sides tall enough to hold the glass sheet in but don't permanently fasten it, so it is replaceable.

              Rick
              This is a pretty good idea, however, drilling the holes and running the wire would be a nightmare. Then again I always overdo things like this and would have at least 100 LEDs to make sure it had enough light .

              Comment

              • gsmittle
                Veteran Member
                • Aug 2004
                • 2790
                • St. Louis, MO, USA.
                • BT 3100

                #8
                Originally posted by BobSch
                But there have been several severe local gravity disturbances. I felt one the last time I was out imbibing
                There's one at my doctor's office, too. It's located right under the scale....

                g.
                Smit

                "Be excellent to each other."
                Bill & Ted

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