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[Cob] dirt bags (on behalf of Ryan Hunt)Patrick Newberry PNewberry at habitat.org
Tue Dec 13 06:11:36 PST 2005
Ryan had a good point. It should be catenary which I meant but did not articulate. The compass is usefull however for keeping your rows even as you go up the catenary shape in your corbelling process and is frequently used by Nader and crew and CalEarth. Pat Newberry -----Original Message----- From: Ryan Hunt [mailto:ryanhunt at hugllc.com] Sent: Monday, December 12, 2005 8:23 PM To: Patrick Newberry Subject: Re: [Cob] dirt bags The shape of the profile of the dome should be catenary. There are a lot of good resources for understanding catenary arches and domes. Try CalEarth at: http://www.calearth.org Patrick Newberry wrote: >Well the best shap is round. > >Basically you put in a compass in the center of your circle. I used a >log/ stump with a wheel from a cart that would spin 360%. This becomes >our measuring tool as you corbelle each row. > >Openings require small value forms. > > >Pat Newberry >www.gypsyfarm.com > >Also you can check out >www.calearth.com > > > > >The box said "Requires WinXP, W2k, or better," and so I installed >Linux. > > > ><snip> > >I guess this is not exactly the place to ask for help, as dirtbags >buildings are not exactly cob, but I can't think of a better place to >ask. > >I'm planning to build a dirtbag dome (5m diameter) and I need to know >what would be the ideal shape (curve) for this kind of corbelled dome. >Does anyone here have relevant information on this subject? > >Thanks in advance, > >Nico. > ></snip> > >_______________________________________________ >Coblist mailing list >Coblist at deatech.com http://www.deatech.com/mailman/listinfo/coblist > >
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