Patent ID: 6347257
Filing Date: 2002-02-12
Classification: B29C,B33Y,G06T

Abstract:
A method of forming a three-dimensional object on a layer-by-layer basis using a selective deposition modeling process wherein selective deposition involves using at least one orifice which dispenses a droplet of flowable material that solidifies upon being dispensed, comprising the steps of:detecting the drop volume capability of each orifice; forming a portion of the three-dimensional object; determining a predetermined drop volume capability of each orifice based upon a pre-determined drop volume capability produced by a simulation of the selective deposition modeling process; comparing the predetermined drop volume capability with the detected drop volume of each orifice; and adjusting a drop volume capability of each orifice until substantially all orifices have a uniform drop volume capability and all dispensed droplets of the flowable material have a uniform volume.