Patent ID: 9604411
Date: 2017-03-28
CPC Classifications: B29C,B29L,B33Y

Claim:
1. A multi-material three dimensional printer, comprising in combination: a build plate; a major transport mechanism movable along a major axis of said build plate and a minor transport mechanism movable along a minor axis of said build plate, said transport mechanisms in engageable coordination with each other, a first powder dispenser of a plurality of powder dispensers mountable on said major transport mechanism movable over at least portions of said build plate to place a first powder layer above said build plate; a binder jet of a plurality of binder jets mountable on said minor transport mechanism movable over at least portions of said build plate along said minor axis to place binder and bind the first powder together in locations where the binder is placed; a first powder remover mountable on said major transport mechanism movable over at least portions of said build plate along said major axis to remove unbound first powder in the first powder layer; a second powder dispenser of the plurality of powder dispensers movable over at least portions of said build plate along said major axis to place a second powder layer above said build plate, the second powder different from the first powder.