What the E3D ObXidian Prusa nozzle does

The E3D ObXidian Prusa Nozzle for MK4/XL is a 0.4mm high-wear 3D printing nozzle designed specifically for Prusa’s Nextruder system. It provides a durable nozzle option for Prusa MK4 and XL users who need reliable printing, faster nozzle swaps, and better performance with abrasive or filled polymers.

An all-metal filament guide makes the Nextruder filament path entirely metal. That construction helps improve overall printer reliability while also enabling speedier nozzle changing.

Key features and benefits

Designed for Prusa Nextruder systems

This nozzle is built specifically for Prusa’s latest extruder. Native fit with the MK4 and XL platform supports easier integration and simpler maintenance on compatible machines.

Very high wear resistance for abrasive materials

ObXidian offers wear resistance that is orders of magnitude higher than any other E3D nozzle described in the source content. That makes the nozzle a strong choice for printing abrasive and filled polymers that would wear standard nozzles more quickly.

Tool steel insert with E3DLC™ coating

The nozzle achieves its durability by combining a tool steel insert with E3DLC™ coating. This construction is central to the nozzle’s resistance to wear during demanding print jobs.

Non-stick surface for cleaner operation

The specially formulated E3DLC™ coating also embeds non-stick properties into the nozzle itself. This results in considerably less plastic build-up around the nozzle during printing.

Simplified nozzle changing

Changing a nozzle on a compatible Prusa printer is made much easier. Faster swaps mean less time spent on maintenance and more flexibility when changing nozzle sizes or switching between materials.

Easy nozzle size identification

Each nozzle has its size engraved into it. The engraved marking makes it easier to identify the nozzle during setup, storage, or maintenance.

Use cases for Prusa MK4 and XL printing

• Printing abrasive or filled polymers: The high-wear construction is suited to materials that can rapidly erode standard nozzles.
• Frequent material changes: Speedier nozzle changes help when alternating between standard and specialty filaments.
• Managing multiple nozzle sizes: Engraved size markings make nozzle organisation easier in workshops, classrooms, and print setups with spare parts on hand.
• Improving day-to-day reliability: The all-metal filament path and reduced plastic build-up support cleaner, more dependable operation on compatible Prusa systems.

Important safety information

WARNING: This product can expose you to chemicals including Mineral Oils, which is known to the State of California to cause cancer, and Lead and Nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm.