A method of rapid prototyping through controlled layerwise deposition and extraction involving the precision control of material subtractive or removal processes in conjunction with material additive processes wherein each layer is formed by selectively depositing and removing portions of the layers...http://www.google.es/patents/US5398193?utm_source=gb-gplus-sharePatente US5398193 - Method of three-dimensional rapid prototyping through controlled layerwise deposition/extraction and apparatus therefor
Method of three-dimensional rapid prototyping through controlled layerwise ...
