I've been doing a bit of research into machinery to help with cob building. I happened across the following item while googling something completely unrelated.
http://www.finnbuilder.co.za/gemini.htm
The basic principal is that the device is rammed with a concrete mix and "floated" to the side along the edge of the wall, eliminating the need for brickmaking, since your "bricks" are actually formed in-place on the wall.
I am currently sitting in an office building about as far away from a cob wall as one can get, and my cob-walled cottage in the countryside remains a twinkle in my eye.
However I'm hoping someone on the thread will take a stab at raising a cob wall using one of these devices and documenting their experiences.
Cheers
Stephan
