E3D ObXidian Prusa Nozzles for MK4/XL

These high-quality 3D printing nozzles are designed specifically for use with Prusa’s latest extruder – Nextruder. Compatible with Prusa’s MK4 and XL 3D printers, they feature an all-metal filament guide which means that Nextruder’s filament path is entirely metal. This helps improve overall printer reliability and enables speedier nozzle changing.  

With a wear resistance that is orders of magnitude higher than any other E3D nozzle, ObXidian is really hard, making it the perfect nozzle for printing abrasive/filled polymers with. This is achieved by pairing a tool steel insert with our E3DLC™ coating. This specially formulated coating also embeds non-stick properties into the Nozzle itself, resulting in considerably less plastic build-up around the Nozzle. 

Simplified nozzle changing. Changing a nozzle on your Prusa printer just got much easier! Waste less time changing your nozzles and more time experimenting with different sizes and materials.   

Easy identification. Each Nozzle has its size engraved into it.  

PLEASE NOTE:

• These nozzles are only compatible with Prusa MK4 and XL 3D printers.
• ObXidian™ coated nozzles are exceptionally wear resistant compared to other products on the market and significantly outperform other hardened nozzles. Improvements in ‘exotic’ engineering filaments mean that some new materials which include aggressive fillers, including but not limited to Polymaker’s Polymide range, can cause significant wear on even ObXidian nozzles. E3D is actively developing even more specialist solutions for these materials. In the meantime please be aware that even the rainbows and unicorns in your ObXidian nozzle are not everlasting under extreme material conditions.
• Compatible with: Prusa MK4 and XL

FAQ'S:

Is it possible to wear an ObXidian Nozzle?

• UV-reactive/ “glow in the dark” filaments include an additive called Strontium Aluminate. Strontium Aluminate is very hard. So hard, in fact, that when printed at very high movement speeds, the deposited layers begin to work like sandpaper. We’ve found these conditions to be capable of removing the E3DLC coating and therefore can have a permanent impact on the wear resistance of the nozzle.  
• E3D is not saying you need to totally avoid using glow in the dark. They have  successfully run multiple kilograms of glow in the dark filament through an ObXidian Nozzle without seeing any impact to the nozzle's performance. Turns out it’s a lot more complicated than wear being proportional to speed, but they have been using the Prusa MK3S+ with the 0.2 Quality settings with good success for most model geometries. If in doubt, print slow.

What is the maximum temperature I can print with ObXidian?

• 300°C

Making 3D Possible!