Patent ID: 9102098
Filing Date: 2015-08-11
Classification: B05C,B29C,B33Y,E04F,E04G

Abstract:
1. A three-dimensional (3D) drawing device comprising: a housing configured to accept a feed stock; a nozzle assembly at least partially disposed within the housing and having an exit nozzle; a fan coupled to the housing and configured to move air into an internal volume of the housing; a plurality of cooling ports arranged circumferentially about and proximate to the nozzle, the plurality of cooling ports in fluid communication with the internal volume such that the air is directed out of the internal volume through the plurality of cooling ports; a motor disposed within the housing; and a gear train disposed within the housing and coupled between the motor and the feed stock and configured such that rotation of the motor causes the feed stock to be extruded out of the exit nozzle to form a three-dimensional object.