Genuine Original Prusa XL / MK4 / CoreOne Obxidian Abrasive Resistant Nozzles by E3D

Prusa MK4 and XL users printing abrasive or filled filaments face rapid nozzle wear that degrades print quality and increases downtime. Without a durable nozzle, prints risk under-extrusion and surface defects from nozzle erosion.

These Genuine Original ObXidian Abrasive Resistant Nozzles by E3D are engineered specifically for Prusa's Nextruder system on MK4, XL, and CoreOne printers. Featuring a tool steel insert coated with E3DLC™, they deliver wear resistance orders of magnitude beyond standard hardened nozzles, ideal for abrasive materials like carbon fiber and glass fiber-filled filaments. The all-metal filament path and engraved size markings simplify nozzle changes and improve reliability for high-speed, high-flow printing.

Why Upgrade?

• Significantly extends nozzle life when printing abrasive filaments like carbon fiber and glass fiber composites on Prusa MK4 and XL.
• Reduces print defects caused by nozzle wear, maintaining consistent extrusion and surface finish.
• Enables faster nozzle changes with engraved size markings and all-metal filament path on Nextruder-equipped printers.
• Supports high-speed, high-flow printing without sacrificing quality on Prusa CoreOne and Nextruder systems.
• Outperforms standard hardened nozzles, reducing maintenance frequency for demanding engineering filaments.

Best For:

• Prusa MK4 and XL users printing abrasive or filled filaments requiring durable nozzles.
• CoreOne owners upgrading to a high-wear resistant nozzle compatible with their Nextruder.
• Engineers and makers using carbon fiber, glass fiber, or other composite filaments on Prusa printers.
• Users seeking simplified nozzle changes with engraved size markings and all-metal filament paths.
• High-speed print enthusiasts needing reliable, high-flow nozzle performance on Prusa Nextruder systems.

Pair With the Right Filament

Maximize your ObXidian nozzle’s lifespan by pairing it with abrasive and engineering-grade filaments designed for demanding applications.

• Carbon Fiber Filament — ideal for strong, lightweight parts requiring wear-resistant nozzles.
• Nylon Filament — durable and flexible, often filled with abrasives that benefit from ObXidian nozzles.
• ABS Filament — common engineering plastic compatible with high-temperature, wear-resistant nozzles.