[Cob] They say adobe but they mean cob...

[Amanda Peck]

Actually they may not mean cob, or adobe either, while they are at it.  
Concrete sets up faster.

Drying time sounds like a limiting factor. I couldn't quite figure out 
whether they were applying their surface on something on the order of wattle 
and daub (plywood, masonite, etc) or going up the way cob walls do.

That, and setup time.

A week or so to set up the foundation.  another week to set up the robot, 10 
hours of work, with a month's worth of  intervening drying time, so the 
robot is sitting there for most of six weeks just waiting around.  If that's 
the setup, then it isn't Luddite at all to say it's not feasible.

.............
Dean Sherwin wrote:

  http://www.newscientist.com/news/news.jsp?id=ns99994764

Nice idea for squirting earth walls.  Especially since cob is so labor 
intensive.
On the other hand when we have so much personpower in the world and the last 
thing we need is more energy-intensive processes, my luddite tendencies 
rebel against this kind of thing.

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