To Ply or not to ply

topic posted Fri, March 25, 2005 - 12:52 PM by  Liam
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It has been suggested that we leave off the plywood skin on our building so everyone can see the insides. As you can see in the drawing the main gear box will be open leaving the majority of the mechanics exposed. The first 12 feet or so, of the tower is skinned with ply wood. It contains the drop weights and a pendulum. I don’t want people or wind fucking with these objects. So I drew plywood around them. But I also do not want to conceal them as all of the workings should be visible. I’d like to open the debate for discussion…

To ply or not to ply. That is the Question.

Ply Wood:
Pros:
-Hard for tweakers to climb up tower.
-Fast and easy construction. (nail gun)
-Cheaper. Just nails and ply
-Good sheer strength.
Cons:
-Looks like a crappy plywood building, blocks view of pendulum

Big Beams with giant rusty bolts:
Pros:
-less surface area for wind load
-Does not Block view of pendulum. (Pendulum Might need to be
shielded from wind this will most likely be our deciding factor.
Well know when we build and test the gear box. There are of course
compromises like adding a wood lath mesh to stop wind but still allow
visibility)
-Creates a really awesome timeless aesthetic that we like: No modern
fasteners Just big cast Iron washers and rusty bolts.

Cons:
Climbable, Harder to build, More expensive.
posted by:
Liam
SF Bay Area
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  • Re: To Ply or not to ply

    Sat, March 26, 2005 - 11:08 AM
    I don't see why there is much sheer strength required in that lower stage. If the flying buttresses attach fairly high up, then you have the triangles that the ply would provide. You could have a very strong base, and a very strong first landing, plus the towers and buttresses and perhaps a couple of cross-beams to prevent twist. Without a solid covering, you get less windage, and thus less strength required. 6 posts each at approx 7 by 3.5 is a hell of a lot of support in such a small area.
    • Re: To Ply or not to ply

      Sun, March 27, 2005 - 10:48 AM
      I guess I just like the solidity of the closed design. It only looks like ply if you don't stain or paint it.
      • Re: To Ply or not to ply

        Tue, March 29, 2005 - 4:45 PM
        paint or laminate the ply and it becomes something else.

        What about that mud construction technique that Pepe used for his opera stage sets they were organic and very gaudiesce. Perhaps that with an inner frame work could solve some problems? Pepe made some of the most aesthetically interesting playa architecture.
        • Re: To Ply or not to ply

          Wed, March 30, 2005 - 8:51 AM
          could preserve both solidity and visibility by putting portholes or peepholes in the ply. windows into the 'Works, as it were...lets you pick interesting viewpoints, maybe light them. or put a string of peepholes along the side, and make some of them window boxes into watchworkings or somesuch, forced-perspective peepholes...
  • Re: To Ply or not to ply

    Wed, March 30, 2005 - 11:26 AM
    Good thinking, Im glad youre concerned about safety because lets face it: People are stupid. Tweakers WILL climb on this. They always find a way. The last few years, my chieftain radar was buzzing with potential for safety problems.... (ren faire reference). kind of ruins the fun. Remember the amazing temple of gravity? ANyone see the idiots pushing the hanging brazier at unsuspecting bysteanders backsides? I sure did....its a wonder no one got really hurt. but that was the year the girl died under the trailer tires....

    Idea to satisfy both considerations: a lattice-work covering. Keeps little fingers out, (or at least enough of a deterrent-some covering says"stay off!") but still allows visual through holes.

    the pattern used as "lattice" can add to the surrealism of the piece as well. can be wood or metal

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