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Building the second tier - reciprocal frame
Square reciprocal frame structure - two tier
A simple square pattern structure. Only two tiers... we need more dowels to make a three or four tier system.
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Uploaded on Aug 30, 2009
Reciprocal frame bridge - 4 verticies
No string, glue, nails, or fasteners of any kind... just friction. Took us about 10 minutes to make.
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Uploaded on Aug 30, 2009
Two tier reciprocal frame - pentagon / triangle
Two tier reciprocal frame - pile of kids
Also... easily holds everyone at the center. I stood at the center as well (~200lbs) and jumped... there was a lot of flex... probably 8 inches.
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Uploaded on Aug 30, 2009
Two tier reciprocal frame - pile of kids II
No nails, ropes, pegs, or fasteners of any kind... only friction and clever placement. Longest board is a 10ft 2x8... total span is right at 18 feet.
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Uploaded on Aug 30, 2009
Setup for making your first reciprocal frame.
Here is the first step... three sticks, put them in place. None of them are on top of any others at this...
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Uploaded on Aug 24, 2009
Finished reciprocal triangle model
See, you can do it. Just do the setup each time you are ready to make a model. The setup helps make the logic of the build much more obvious.
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Uploaded on Aug 24, 2009
Square Reciprocal Frame
Pentagon Reciprocal Frame
Nine sided reciprocal frame
Reciprocal Frames are quite strong...
The weight of the soap and the apple is about 17 oz combined... the weight of the sticks is about 1/4 oz......
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Uploaded on Aug 24, 2009
Reciprocal Frame model, side view
Its not the greatest photo, but this shows that the soap and apple (not seen) are about 3/4 inch off the table top.
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Uploaded on Aug 24, 2009
Two tier reciprocal frame
So, I took the nine sided frame and added a second tier. The strength is still sufficient for the 17 ozs......
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Uploaded on Aug 24, 2009
Two tier reciprocal frame, side view
Hard to see, but we are now about an inch off the table.
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Uploaded on Aug 24, 2009
Three tier reciprocal frame
OK, now I added short stick trinagles to the ends of each of the nine main sticks. The short sticks do two...
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Uploaded on Aug 24, 2009
super adobe
Reciprocal Frame
Dome Tent
Adobe with plaster
Adobe Walls
