Hotend AnyCubic quick-change with 0.8 mm nozzle for Kobra S1 series

The Anycubic quick-change hotend with a 0.8 mm nozzle for the Kobra S1 series is a metal all-steel extruder head designed to melt and deposit filament precisely for layer-by-layer 3D printing. It is compatible with Kobra S1 and Kobra S1 Combo printers and combines a larger nozzle diameter for faster infill with sufficient accuracy for visible details. The unit is compact and lightweight to ease installation and avoid adding significant inertia to the printer carriage.

Advantages

Constructed entirely from hardened steel, the hotend offers high wear resistance and durability when printing abrasive or high-temperature filaments. The 0.8 mm nozzle supports faster material extrusion and shorter print times for large features while maintaining reasonable surface quality. Small overall dimensions and a 45 g weight make it straightforward to mount on the Kobra S1 series without major adjustments.

Suitable for

• Printing larger parts or models with thick layers and faster infill
• Use with abrasive or filled filaments that require hardened-steel nozzle surfaces
• Prototyping where reduced print time is prioritised over ultra-fine detail

When it may not be suitable

The 0.8 mm nozzle is less suitable for prints that demand extremely fine detail or very thin walls, where smaller nozzles (for example 0.2–0.4 mm) produce finer resolution. Also, hardened-steel nozzles typically have lower thermal conductivity than copper or plated brass alternatives, which can affect thermal response for certain materials or very high-speed extrusion settings.

Key specifications

• Compatibility: Kobra S1, Kobra S1 Combo
• Nozzle diameter: 0.8 mm
• Nozzle material: hardened steel (All Metal Hardened Steel)
• Weight: 45 g
• Dimensions: 114 × 91 × 26 mm

How to use

Power off and cool the printer before replacing the hotend. Remove the existing hotend according to the Kobra S1 service instructions, install the Anycubic quick-change hotend in the carriage, and secure it following the printer manufacturer’s guidance. After mechanical installation, recalibrate Z-offset and run a test print to verify extrusion and first-layer adhesion. Adjust print temperature and flow settings to suit the filament and the larger nozzle diameter.

What to consider before purchase

• Ensure your printer is a Kobra S1 or Kobra S1 Combo model for direct compatibility
• Consider whether a 0.8 mm nozzle meets your resolution requirements versus print speed needs
• Check filament types you plan to use; hardened steel is preferable for abrasive or filled materials

Usage recommendations

For best results, increase layer height and line width settings appropriately when using the 0.8 mm nozzle, raise printing temperature slightly if required for consistent flow, and perform a calibration print to fine-tune extrusion multiplier and print speed.