John Biehler’s Thing-o-Matic TK-421 Published on October 15, 2011 in The world of 3D printing… with John BiehlerFull resolution (450 × 600) Next → John Biehler’s Thing-o-Matic TK-421 and a collection of objects he has made since he ordered the machine. John Biehler’s Thing-o-Matic TK-421 and a collection of objects he has made since he ordered the machine.