MakerBot® Smart Extruder+ (Replicator) | GoEngineer Store。MakerBot Smart Extruder+ for 5th Gen Replicator Mini/Desktop 3D。MakerBot Smart Extruder Plus with Improved Components, Enhanced。。昔は買って使わないで置いていました。LABS Experimental Extruder for Replicator+ and Z18 3D Printer。