{"product_id":"genuine-original-prusa-xl-mk4-coreone-high-flow-obxidian-abrasive-resistant-nozzles-by-e3d","title":"Genuine Original Prusa XL \/ MK4 \/ CoreOne High-Flow Obxidian Abrasive Resistant Nozzles by E3D","description":"\u003ch2\u003eE3D ObXidian High Flow Nozzle for Prusa Nextruder — MK4, MK4S, MK3.9, XL, CORE One — Tool Steel + E3DLC™ Coating, Drop-In Upgrade\u003c\/h2\u003e\n\n\u003cp\u003e\n  The \u003cstrong\u003eE3D ObXidian High Flow Nozzle\u003c\/strong\u003e is the definitive nozzle upgrade for\n  Prusa Nextruder-based printers. Co-developed with Prusa, it combines two capabilities that\n  are usually a trade-off: \u003cstrong\u003eultra-high wear resistance for abrasive filaments\u003c\/strong\u003e\n  and \u003cstrong\u003eincreased volumetric flow for faster printing\u003c\/strong\u003e — in the exact same\n  external form factor as a standard Nextruder nozzle. Drop-in replacement, no hardware\n  modifications, no new mounts, no fan duct changes. Just swap and print.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Compatible with: \u003cstrong\u003ePrusa MK4, MK4S, MK3.9, MK3.9S, XL, CORE One, CORE One L.\u003c\/strong\u003e\n  Available in \u003cstrong\u003e0.4mm, 0.6mm, and 0.8mm\u003c\/strong\u003e diameters.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  ⚠️ \u003cstrong\u003eCompatible with Prusa Nextruder only.\u003c\/strong\u003e Not compatible with older Prusa\n  extruders (MK3S+, MK2, MMU setups with non-Nextruder hotends).\u003cbr\u003e\n  ⚠️ \u003cstrong\u003eZ offset adjustment may be required\u003c\/strong\u003e when swapping between nozzle sizes\n  or from a standard to High Flow nozzle. Recalibrate first layer after any nozzle change.\u003cbr\u003e\n  ⚠️ \u003cstrong\u003eMax temperature: 300°C.\u003c\/strong\u003e This is not the ObXidian 500 variant. For\n  materials requiring above 300°C, see the ObXidian 500 series.\u003cbr\u003e\n  ⚠️ \u003cstrong\u003eSome ultra-aggressive fillers will wear even ObXidian.\u003c\/strong\u003e See the\n  compatibility note in the materials section below.\n\u003c\/p\u003e\n\n\u003ch3\u003eAll-Metal Filament Guide — No PTFE Anywhere in the Nextruder Path\u003c\/h3\u003e\n\u003cp\u003e\n  Standard Nextruder nozzles already eliminated PTFE from the hot zone, but the all-metal\n  filament guide in these E3D ObXidian nozzles takes that further — the \u003cstrong\u003eentire\n  filament path through the Nextruder is metal from entry to tip\u003c\/strong\u003e. No PTFE liner,\n  no tube degradation at elevated temperatures, no off-gassing during high-temp material\n  sessions. This improves long-term print reliability at sustained temperatures and makes\n  nozzle swaps significantly faster since there's no PTFE tube to re-seat or worry about\n  during the change.\n\u003c\/p\u003e\n\n\u003ch3\u003eHigh-Flow Internal Geometry — More Speed Without a Bigger Nozzle\u003c\/h3\u003e\n\u003cp\u003e\n  The flow bottleneck in most nozzles isn't the orifice — it's heat transfer. If filament\n  passes through the melt zone faster than it can fully liquefy, you get under-extrusion at\n  speed even if your hotend temperature reads correctly. E3D's High Flow ObXidian addresses\n  this at the geometry level: a \u003cstrong\u003ecustom internal profile increases the surface area\n  inside the nozzle\u003c\/strong\u003e, giving filament more contact time with the heated metal as it\n  moves toward the tip. The result is higher achievable volumetric flow from the same\n  hotend — letting your Prusa MK4 or XL run faster without sacrificing extrusion consistency.\n  Unlike E3D's older high-flow approaches (Volcano, SuperVolcano), this achieves higher\n  throughput with \u003cstrong\u003eno change to nozzle external dimensions\u003c\/strong\u003e — your existing\n  mount and fan duct setups remain untouched.\n\u003c\/p\u003e\n\n\u003ch3\u003eObXidian™ — Tool Steel Insert + E3DLC™ Coating\u003c\/h3\u003e\n\u003cp\u003e\n  Standard brass nozzles wear measurably when printing glass fiber, carbon fiber, or\n  glow-in-the-dark filaments. Hardened steel nozzles do better, but still degrade over\n  sustained abrasive use. ObXidian uses a fundamentally different approach: a\n  \u003cstrong\u003etool steel insert\u003c\/strong\u003e combined with \u003cstrong\u003eE3DLC™ (Diamond-Like Carbon)\n  coating\u003c\/strong\u003e — a proprietary surface treatment that delivers wear resistance orders\n  of magnitude higher than any other E3D nozzle, and significantly beyond generic hardened\n  steel options. The E3DLC coating also has inherent \u003cstrong\u003enon-stick properties\u003c\/strong\u003e,\n  which means considerably less filament build-up on the nozzle exterior — cleaner tip,\n  fewer print crashes from stringing buildup, and less time cleaning between material changes.\n\u003c\/p\u003e\n\n\u003ch3\u003eMaterial Compatibility — What ObXidian Handles and What It Doesn't\u003c\/h3\u003e\n\u003cp\u003e\n  ObXidian is the correct nozzle for the vast majority of abrasive filaments:\n\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e✅ \u003cstrong\u003eRecommended\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003ePLA-CF, PETG-CF, ABS-CF, ASA, standard Nylon (PA6, PA12), glow-in-the-dark, filled composites with standard particle size\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e✅ \u003cstrong\u003eSupported\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003ePLA, PETG, ABS, ASA, TPU, PC, PP — all standard non-abrasive filaments\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e⚠️ \u003cstrong\u003eUse with caution\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003ePolymaker PolyMide PA612-CF, PA6-CF, PA6-GF, PA12-CF and other ultra-aggressive fiber-filled engineering grades — these can cause wear even on ObXidian. Check filament manufacturer's recommended minimum nozzle size before printing\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e⚠️ \u003cstrong\u003eParticle size warning\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003eSome filled materials have particles close to or larger than 0.4mm — attempting to print these through a 0.4mm nozzle significantly increases jam risk. Use 0.6mm or larger for heavily filled composites\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\n  For the most aggressive abrasive filaments, E3D's \u003cstrong\u003eObXidian 500\u003c\/strong\u003e series\n  (rated to 500°C, at least 5× more wear resistant) is the appropriate step up.\n\u003c\/p\u003e\n\n\u003ch3\u003eEasy Identification — Size Engraved on Every Nozzle\u003c\/h3\u003e\n\u003cp\u003e\n  Each nozzle has its orifice diameter \u003cstrong\u003elaser-engraved directly into the body\u003c\/strong\u003e.\n  If you run multiple nozzle sizes — 0.4mm for detail, 0.6mm for speed, 0.8mm for draft\n  printing — you'll never accidentally install the wrong one or dig through unlabeled nozzle\n  collections trying to identify a size by eye.\n\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eE3D\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eObXidian High Flow — Prusa Nextruder\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible printers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePrusa MK4, MK4S, MK3.9, MK3.9S, XL, CORE One, CORE One L\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExtruder compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePrusa Nextruder only\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.4mm \/ 0.6mm \/ 0.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilament diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNozzle material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTool steel insert + E3DLC™ Diamond-Like Carbon coating\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilament path\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll-metal — no PTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Flow — custom internal geometry for increased volumetric throughput\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eForm factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIdentical to standard ObXidian Nextruder nozzles — drop-in, no mount changes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNon-stick coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes — E3DLC™ reduces filament build-up\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize identification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngraved on nozzle body\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.52g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHot tightening required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo — Nextruder system, standard swap procedure applies\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003ctd\u003e1× E3D ObXidian High Flow Nextruder Nozzle (size as selected)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's NOT Included\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003eNextruder hotend assembly — this is a nozzle only\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003eOther nozzle sizes — each size sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhen Do You Need This?\u003c\/h3\u003e\n\u003cp\u003e\n  This is the right nozzle if you're running a Prusa MK4, MK4S, or XL and regularly printing\n  with carbon fiber or glass fiber-filled materials — or if you want to push your print speeds\n  higher without upgrading your hotend. It's also the correct choice if you've been burning\n  through brass nozzles on abrasive filaments and want a nozzle that lasts through sustained\n  production use. If you print a mix of standard and abrasive materials and want one nozzle\n  that handles both without compromise, ObXidian High Flow is the answer.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  ⚠️ \u003cstrong\u003eCalifornia Prop 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals\n  including Mineral Oils, Lead, and Nickel, which are known to the State of California to\n  cause cancer, birth defects, or other reproductive harm.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Browse our full nozzle selection at\n  \u003ca href=\"\/collections\/3d-printer-nozzles\"\u003e3D Printer Nozzles\u003c\/a\u003e, or explore all\n  performance upgrades at\n  \u003ca href=\"\/collections\/3d-printer-upgrades\"\u003e3D Printer Upgrades\u003c\/a\u003e.\n\u003c\/p\u003e","brand":"West3D 3D Printing Supplies","offers":[{"title":".4mm","offer_id":52735672320294,"sku":"PRUSA-MK4-NOZ-HF-OBX-AS-0400","price":64.99,"currency_code":"USD","in_stock":true},{"title":".6mm","offer_id":52735672353062,"sku":"RC-NOZZLE-HF-OBX-0600-AS-SPK","price":64.99,"currency_code":"USD","in_stock":true},{"title":".8mm","offer_id":52735672385830,"sku":"E3D2344.8M","price":64.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/1986\/2822\/files\/genuine-original-prusa-xl-and-mk4-high-flow-obxidian-abrasive-resistant-nozzles-by-e3d-west3d-3d-printing-supplies-e3d-672124.png?v=1773259451","url":"https:\/\/supplies3d.shop\/products\/genuine-original-prusa-xl-mk4-coreone-high-flow-obxidian-abrasive-resistant-nozzles-by-e3d","provider":"SUPPLIES3D","version":"1.0","type":"link"}