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Ecodome Shape

 
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I am in process for making 4 ecodomes in india. I am done with markings and layout plans even i have arranged earth bags, barb wire and other things. I am using idea of Bonita homes, but I have a query about placing the bags. The radius I kept is about 7 feet and I wish that to be 15-18 feet tall for main dome and 10 feet for smaller domes. I am searching how to make that dome shape. How much to adjust the row inside in each lane to get that dome shape (like first 5 feet in straight then sliding bags 1-2 inches inside ? ). Any help from experts ? Please find attachments.
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Location: Abkhazia · temperate subtropical climate
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Hello Waqar,

do you know the Auroville Earth Institute? They have documented a few things online.
 
Waqar Naqvi
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Thank you Sebastian,

I will go through it.


Sebastian Köln wrote:Hello Waqar,

do you know the Auroville Earth Institute? They have documented a few things online.

 
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Location: Colorado Springs, CO zone 5A / Canon City, CO zone 5B
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Hi Waqar -

We used the information in this book: https://www.amazon.com/Earthbag-Building-Tricks-Techniques-Natural/dp/0865715076 when we built our single 16' inner diameter scoria bag dome. It is about as tall as it is wide. We had a rope on a centered pivot point, and changed the length of the rope with each new level. The rope stretched so our rows were not perfect, but it still worked. Next time, I would use a chain. I do not know how to help you with the shape of domes you are building, but I thought I'd pass along what worked for us. Good luck to you.
 
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dream green homes is a god source. Use a piece of wire for your measuring line. Same with X bracing - using cable (much like rope) will not really do it, you need solid material so it doesn't stretch (learned the hard way).
 
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Location: Los Angeles CA
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Hi, the attached drawing is an explanation of the technique used at Cal Earth for controlling the interior shape of a dome.    the center compass sweeps the radius and the guide chain is used to adjust the length of the compass each time one lap or course is completed.
Filename: CHAIN-AND-COMPASS-FOR-TYPICAL-EARTHBAG-DOME.pdf
File size: 47 Kbytes
 
Waqar Naqvi
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Thank you all for help. I have almost completed a dome with other on the way. I wish to know how to get that plastered from outer and inner surface as I think the cement plaster wont stick directly on bags. Please assist.
 
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