E3D Creality High Flow Unicorn Nozzles

Warnings

• During use and cooldown, there is a potential to burn your hands.
• Your HotEnd and printer are your responsibility. We cannot be held responsible for damages caused by our products use, misuse or abuse.

Summary

• Compatible with: K1C, K1 MAX, Ender 3 V3, Ender 3 V3 Plus, Ender 3 V3 KE, Ender 3 V3 SE.
• Filament diameter: 1.75mm
• Maximum printing temperature: 300°C

Prusa MK4 ObXidian Dimensions

Recommended cleaning methods

• Nylon cleaning filament (internal cleaning method)
• Warm pull (internal cleaning method)
• Cold pull (internal cleaning method)
• Brass brush (external cleaning method)

Non-recommended cleaning methods

• Needle (internal cleaning)
• Steel wire brushes (external cleaning methods)
• Blow torch (internal/ external cleaning method)

Identification

You can get yourself an E3D Creality Unicorn Nozzle here.

During this upgrade, you will need:

• Spanner
• Tubular box spanner

• Home the toolhead by moving it to the home position using your printer's control interface.
• Move the bed down 30mm to provide easy access to the toolhead.
• Heat the nozzle to the filament’s printing temperature, then use the retraction button to unload the filament.
• Set the HotEnd temperature to 0°C and wait until it has fully cooled.
• Unscrew the screws on each side holding the fan cover in place. Carefully detach the heatsink fan connector and set the fan cover aside in a safe place.
• Take off the nozzle sock for access to the nozzle.
• Set the nozzle temperature to 240°C.
• Hold the heater block steady using a spanner, then use a tubular box spanner to unscrew and remove the nozzle carefully (be cautious, as the nozzle is very hot).
• Insert the new nozzle, hold the heater block with the spanner, and tighten the nozzle using the tubular box spanner.
• Feed the filament back into the extruder, and extrude the filament using its printing temperature. Make sure to check that it extrudes smoothly through the new nozzle.
• Set the nozzle temperature to 0°C and increase the side fan speed to 100% to speed up cooling.
• Turn off the printer once the nozzle is cooled and reinstall the nozzle sock.
• Attach the fan’s connector, place the cover back on, and tighten the screws on each side.
• Power on the printer.
• Ensure that input shaping and auto-levelling are activated, and run a self-check (Self-check takes around 11 min).

Stock Creality Unicorn Nozzle

E3D Creality High Flow Brass Unicorn Nozzle

Creality High Flow Brass Unicorn Nozzles Slicing Guide

Feel free to use any slicer you prefer, but ensure it has advanced features that allow you to fine-tune the print settings. This way, you can benefit from the full potential of our High Flow technology. In this guide, we'll be using Orca Slicer (V2.1.0), though we also use SuperSlicer in-house for volumetric flow tests and various other printing projects.

While the Creality High Flow Brass Unicorn Nozzles deliver a smoother and more reliable extrusion experience without any adjustments, there are some slicing considerations to keep in mind to fully leverage the increased volumetric flow rate capacity and optimise your printing.

The easiest change to make is simply overwrite the maximum volumetric speed limit of the filament profile on your slicer. Your slicer will take care of the rest, and you should be able to see a decrease in the overall printing time. The following steps will walk you through how you can increase the maximum volumetric flow rate in Orca Slicer (V2.1.0):

1. Select your filament or the closest generic filament profile.

2. Go to filament settings.

3. Enable advanced settings.

4. Overwrite the “Max volumetric speed” value based on our recommended maximum volumetric flow rates in the previous tab.

However, you should bear in mind that when we talk about an increase in the volumetric flow speed, we’re referring to the rate at which your HotEnd melts plastic, and not the print time. Here are some factors that can significantly impact the print time:

• The printing speed refers to the speed at which the toolhead moves along the X and Y axes. The Creality K1C printer can reach a maximum speed of 600mm/s. While increasing the print speed can reduce print time, it may affect the quality of some features.
• The acceleration of the printer plays a major role in determining the total print time, especially for smaller models. Take the Creality K1C printer, for example—its maximum acceleration is 20,000 mm/s². However, the slicer usually sets lower acceleration values by default to reduce machine noise.
• The slicer reduces the print speed for certain features, such as the roof and boot of an E3DBuggy, to allow for adequate cooling during printing.

You can use the following in-house tested print profiles as a starting point on the Creality K1C printer, but you may need to fine-tune the previously mentioned settings depending on your specific model, filament type, and the print quality you're aiming for: