Hello, this is my first post.<br /><br />I was wondering if the very old and basic technology of dry-stone walling could be combined with modern computer science and 3D scanning techniques to turn ordinary unprocessed rock into a valuable building material. I suppose buildings on the Moon and Mars will need to be protected from radiation and meteorites by some sort of solid shield and there will be the need for landscaping. The cost of manufacturing large amounts of suitable building material would be very high so maybe the local, unprocessed rocks could be used if there was an easy way to fit them together.<br /><br />I imagine the process would be something like the following; several rocks first pass through some sort of 3D scanner then when enough rocks have been scanned a computer starts fitting them to each other and to the design wall shape in the virtual world. The computer outputs instructions to the builder/robot as to the position and orientation of each rock and more rocks are scanned as building progresses. There are lots of technical issues to sort out but because unprocessed rock is such a readily available resource on the Moon and Mars then I'm sure ways will be found to use it.<br /><br />I have started developing such a method for more mundane uses here on Earth but it's still just a concept (and a patent specification) so I'd be happy to hear anyone's views about it's potential use in space.<br /><br />Have a look at www.rocksolver.com to see what I've done so far.<br /><br />Thanks.