Item ships in with 2 week lead time. The MakerBot Labs Experimental Extruder for the MakerBot Replicator, Replicator+, Replicator Mini, Replicator Mini+, and Replicator Z18. Customize Your 3D Printing Experience Designed for the Advanced User who wants to push the limits of what''s possible on MakerBot 3D Printers. KEY FEATURES Creative Flexibility with a Range of MaterialsPush the boundaries of MakerBot 3D printing with interchangeable nozzles, custom material print modes, and unlocked advanced print settings. Freedom to Switch from Production to SandboxQuickly switch from the reliability of the Smart Extruder+ to the Experimental Extruder to test the limits of your ideas. Drafting for SpeedPrint existing PLA materials with the included large diameter draft nozzles and dramatically reduce total print time by up to 75%. Designed to Be CustomizedWith a modified thermal core and a more secure thermal barrier tube, the Experimental Extruder was redesigned to make changing nozzles easier. Download and print the Experimental Extruder Jig to provide a more stable platform. MakerBot Labs Community + ResourcesMakerBot Labs is a community of makers, creators, and experimenters. Post a question to the community, find tips & tricks, and discover custom print modes as you push the limits of your Experimental Extruder.