We described a simple and feasible method for controlled fabrication of 3D carbon nanotube (CNT) architectures on glass at low temperatures (550-650 degreesC) on a large scale by stamp printing bimetallic Fe-Pt/polymer catalyst onto the substrate. The incorporation of Pt into the Fe catalyst was found to greatly decrease the growth temperature of the CNTs. By controlling the concentration of the catalyst and the stamp printing condition, 3D CNT architectures can be achieved. The formation mechanism of these 3D architectures and the function of Pt in the catalytic growth of CNTs are also discussed.