[Cob] Roto Tillers and Cob?

[Thomas Gorman]

<<How does it compare to straight cob?

David T>>

I think one of the issues is that using forms makes it quite  
difficult to work with curved walls- you're pretty much limited to  
rectilinear design, which is OK, but you lose the inherent stability  
and strength of curves.  You also are limited to using the cob as in- 
fill rather than load-bearing, as you need a frame to attach the  
forms to.