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5.1.3. Drafts ideas

Sketches




Here are the measurements for the individual pieces that will make up the floating garden modules. They are calculated based on the amount of plywood we have available.


  Untitled-1Untitled-2Untitled-3Untitled-4 

 Using three sheets of plywood with two pieces of foam insulation board sandwiched in between will give enough buoyancy for the floating garden to float. From the calculations this will allow us to make a number of floating gardens allowing us to test variables by making each floating garden different


Module size testing

We are trying to determine the module size we need to be able to withstand the turbulence at sea and to be stable enough for us to walk on. 

    The module has to:
        -Use the material limitations we have economically
        -Have enough buoyancy to allow two people to float on it
        -Able to walk along it comfortably
        -Have enough room for added safety equipment/space to transport harvested food
        -To be used as individual life rafts if the gardens break 
        -Be able to fit into the size of transport we have (a van)
     
The following are some practical investigations into sizes of possible modules:

Open_sailing balance test



The optimum width we found was 60cm across for stability and to make best use of our materials

Open_sailing balance test

A length of 240cm we found to be long enough for us and some equipment

Open_sailing balance test

Lastly if we break the module is long enough to be used as a raft

 IMG_0560  IMG_0561  IMG_0562

-So a module length of 240cm x 60cm will be used

module size

Below we are looking for the optimum configuration to make the modular boat :

Quick 3d modular model :
- 6 sided objects
- 12 pieces
- 5 level thick (!!!)

 stackable modular garden research note

Not very reliable, nor stable, quite fragile in the end.

So we were looking for alternative shape :



IMG_0567 IMG_0570

Stachik modules seems to always cause the same problem, they end up producing fragile and uneven asymetrical  structures.

So instead of stacked structure, we are going to side-by-side attached structures...

Next we tried to simulate the structure :

http://sodaplay.com/creators/cesarharada/items/hexagonal_2triangles


and then, using our shape as a pattern :
http://sodaplay.com/creators/owenhodgkinson/items/hexagon_experiment


We observe a semi-random pattern, or more irregular "natural" pattern could be quite desirable :

self-assembly

This comes back to the floating bits experiement ...



Modules showing their ballast bags

Untitled-5 

Some variations in the module design: different use of tyres

Untitled-4 


A central mast allows us to create a much more stable structure making everything tensile with the use of cables
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Google sketchup model of what the modules look like configured into our boat

20091124stack-side



20091125

001shelter
002navigate

More flexible version, not hard floor, just modules, large double ballasts. By Cesar Harada & Owen Hodgkinson
http://international-ocean-station.org/download/20091125mast-ropes-rudders~.skp
http://international-ocean-station.org/download/20091124stack-side.skp


Now building :
prototyping the Nomadic_Ecosystem floats and sailing modules
prototyping the Nomadic_Ecosystem floats and sailing modules 
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