E3D Revo High Flow ObXidian 0.4 mm review: a targeted abrasive-material upgrade
At a glance
A Revo upgrade for abrasive filament and greater flow potential; the captured Amazon feedback is too limited to establish a measured speed gain.

The setup
- Revo-format high-flow nozzle
- Selected 0.4 mm orifice
- Original ObXidian design; 300°C manufacturer limit
Why consider it
- A documented route to abrasive-material use within Revo.
- High-flow geometry without changing the standard Revo form factor.
What to weigh up
- The 0.4 mm opening can still be too small for some filled filaments.
- A shorter print is not established for every job.
This is a specific upgrade for an existing compatible Revo setup, not a universal nozzle. The selected original High Flow ObXidian has a 0.4 mm opening and is distinct from the newer ObXiDian 500 range.
Two reasons to consider it
- Abrasive material: the insert and coating are designed for wear resistance.
- A flow-limited job: the internal geometry targets material throughput while retaining the Revo form factor.
The matching Amazon text only confirms carbon-fiber use. It does not supply a measured flow improvement or service-life test, so the buying case rests on documented compatibility and whether your job needs those capabilities.
Check the smallest opening first
A filled filament can require an opening larger than 0.4 mm. Confirm that requirement before choosing this variant. Then verify your exact Revo model and complete system temperature limit.
Check whether flow is actually the constraint
| What you see in the job | What to check before buying |
|---|---|
| Long, broad extrusion moves reach the profile’s flow limit | High-flow hardware may be relevant; qualify the actual filament and heater together. |
| Short moves, tiny details or cooling pauses dominate | A faster melt path alone may leave print time largely unchanged. |
| The filled filament specifies a larger opening | Reject this 0.4 mm variant even if its wear-resistant coating appeals. |
Pros & Cons Analysis
Based on supplied customer reviews and verified product documentation
Pros
- The hardware purpose is clear. E3D specifies an abrasive-resistant insert and coating, and the brief matching Amazon comment confirms carbon-fiber use. This does not establish a measured lifetime.
- The upgrade can preserve an existing compatible arrangement. E3D describes the same external format as standard Revo. The useful gain still depends on the material, heater and print geometry.
Cons
- Wear resistance does not prevent particle blockage. Check the filament maker’s minimum orifice. A hardened surface is not permission to ignore that size requirement.
- Match the upgrade to a real flow limit. Fine, small models may spend little time demanding high material flow. The captured Amazon comment supplies no controlled speed comparison.
Upgrade a known bottleneck
Consider this nozzle when compatible Revo hardware, abrasive filament and a genuine flow requirement coincide. For an ordinary small PLA model, establish the benefit before buying the higher-spec component.
Frequently Asked Questions
Is this the ObXiDian 500 model?
No. The selected product is the original Revo High Flow ObXidian with a 300°C manufacturer limit.
Does abrasive resistance make every carbon-fiber filament suitable for 0.4 mm?
No. Check the exact filament’s minimum orifice size.
Technical Specifications
| Product type | High-flow abrasive-resistant nozzle |
|---|---|
| Interface | Compatible Revo hotend required |
| Selected orifice | 0.4 mm |
| Filament diameter | 1.75 mm |
| Material / coating | Tool-steel insert and E3DLC coating |
| Flow design | High-flow Revo geometry; no measured throughput gain asserted |
| Package / components | One nozzle; not a complete hotend conversion |
| Temperature guidance | 300°C; complete system may be lower |
| Installation / limits | Check filament minimum orifice and exact Revo model |