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Snapmaker × Phaetus Liber™ High Flow Hotend for U1

$99.00 $119.00

Product Overview
• Up to 87% higher volumetric flow.
• High-speed printing for large prints with long, continuous extrusion paths.
• DLC-coated hardened steel for wear resistance.
• Seamless heat break helps reduce clogging.
• Integrated design allows for easy replacement.

Compatibility
Snapmaker U1

Online Tutorial
• Replacement and usage guide on Snapmaker Wiki

Note
• CF/GF-reinforced filaments, Wood PLA, and TPU are not recommended due to potential clogging or feeding issues during high-flow printing.
• Best suited for large prints with long, continuous extrusion paths. Speed gains may be limited for fine details, complex curves, or frequent turns.
• Perform a cold pull when switching from high-temperature filaments (such as ABS, ASA, PA, or PC) to heat-sensitive filaments (such as PLA or PETG) to help prevent clogging. See the Snapmaker Wiki for instructions.
• U1 currently requires all hotends used in the same print to be the same size.

Learn More Hide
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Delivery

• 48 states, AK, HI: Ships from U.S. warehouse · 1–2 business days dispatch · 2–7 business days delivery after dispatch
• AE, AP, GU, PR: Ships from U.S. warehouse · 1–2 business days dispatch · 15–30 business days delivery after dispatch
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Snapmaker × Phaetus Liber™ High Flow Hotend for U1

Important Notes

  1. The High Flow Hotend is best suited for printing large models with long, continuous extrusion paths, where its high-speed, high-flow capabilities can be fully utilized. For models with intricate details, complex curved surfaces, numerous corners, or frequent changes in direction, printing speeds may be limited, and the benefits of the High Flow Hotend may be less noticeable.
  2. The U1 currently does not support using hotends with different nozzle diameters in the same print job. Before printing, ensure that all toolheads used in the print job are equipped with hotends of the same nozzle diameter.
  3. For hotend installation instructions, refer to the U1 Hotend User Guide.
  4. When switching from high-temperature filaments, such as ABS, ASA, PA, or PC, to heat-sensitive filaments, such as PLA or PETG, perform a cold pull before printing to help prevent clogging. Use the printer’s unloading procedure to unload the high-temperature filament, then load the new filament without starting the loading procedure. Set the nozzle to the high-temperature filament’s printing temperature and manually extrude until the residual filament is fully purged and the new filament flows smoothly. Lower the nozzle temperature to 220–240°C and continue extruding as it cools. Then lower it to 85°C and, once cooled, slowly pull the filament upward. A three-pronged tip indicates a successful cold pull. If the filament cannot be extruded, increase the nozzle temperature or clear the nozzle with a cleaning needle. For more details, refer to the U1 Hotend User Guide on the official Wiki.

 

Recommended Printing Conditions

*Based on a 0.4mm nozzle. Printing conditions may vary with different nozzle diameters.

Nozzle Temperature

240–260°C

Bed Temperature

60–85°C

Cooling Fan

0–60%

Printing Speed

50–150 mm/s

Drying Settings Before Printing

65°C for 6 h

Physical Properties

Density

1.30 g/cm³

Light Transmission

90%

Melt Index

11.5 g/10 min (210°C, 2.16 kg)

Glass Transition Temperature

79.2°C (10°C/min)

Vicat Softening Temperature

83.2°C

Heat Deflection Temperature

77.1°C (0.45 MPa)

Mechanical Properties

Tensile Strength (X-Y)

46 ± 1 MPa

Tensile Strength (Z)

30.99 ± 1.52 MPa

Breaking Elongation Rate (X-Y)

8.17 ± 0.98%

Breaking Elongation Rate (Z)

3.16 ± 0.6%

Bending Modulus (X-Y)

2.26 ± 0.03 GPa

Bending Modulus (Z)

1.88 ± 0.03 GPa

Bending Strength (X-Y)

72.07 ± 0.72 MPa

Bending Strength (Z)

61.24 ± 0.82 MPa

Impact Strength (X-Y)

2.91 ± 0.11 kJ/m² (Notched)
34.16 ± 1.22 kJ/m²

Impact Strength (Z)

1.09 ± 0.06 kJ/m² (Notched)
5.51 ± 0.96 kJ/m²

Product box contents displayed with items listed beside it.
Text displayed on a dark background, likely an article or document.

Important Notes

  1. The High Flow Hotend is best suited for printing large models with long, continuous extrusion paths, where its high-speed, high-flow capabilities can be fully utilized. For models with intricate details, complex curved surfaces, numerous corners, or frequent changes in direction, printing speeds may be limited, and the benefits of the High Flow Hotend may be less noticeable.
  2. The U1 currently does not support using hotends with different nozzle diameters in the same print job. Before printing, ensure that all toolheads used in the print job are equipped with hotends of the same nozzle diameter.
  3. For hotend installation instructions, refer to the U1 Hotend User Guide.
  4. When switching from high-temperature filaments, such as ABS, ASA, PA, or PC, to heat-sensitive filaments, such as PLA or PETG, perform a cold pull before printing to help prevent clogging. Use the printer’s unloading procedure to unload the high-temperature filament, then load the new filament without starting the loading procedure. Set the nozzle to the high-temperature filament’s printing temperature and manually extrude until the residual filament is fully purged and the new filament flows smoothly. Lower the nozzle temperature to 220–240°C and continue extruding as it cools. Then lower it to 85°C and, once cooled, slowly pull the filament upward. A three-pronged tip indicates a successful cold pull. If the filament cannot be extruded, increase the nozzle temperature or clear the nozzle with a cleaning needle. For more details, refer to the U1 Hotend User Guide on the official Wiki.

 

Frequently Asked Questions

1. Is a Top Cover required for PETG HF?

No, it is not required.
 

2. Is a Hardened Steel Hot End required for PETG HF?

No, it is not required.

3. Do I need to dry PETG HF before printing or keep it continuously dried?

It is recommended to dry PETG HF before printing, and it is also advisable to keep it continuously dried during printing and storage to ensure stable print quality and avoid issues such as stringing, bubbling, or poor layer adhesion.
For best results, it is recommended to use a filament dryer such as the SnapDryer during both pre-print drying and continuous printing.

4. Build Plate Recommendation

Build Plate Recommendation

U1 Textured PEl Steel Plate

Recommended

U1 Smooth PEI Steel Plate

Clue is required for proper bed adhesion and reliable printing

U1 Graphic Effect Steel Plate

Recommended

5. PETG Basic VS PETG HF

Comparison Dimensions PETG Basic PETG H

Flowability

Moderate

Higher

Recommended Print Speed

40–80 mm/s

100–300+ mm/s

Surface Quality

Good at low speed, noticeable degradation at high speed

Maintains good quality even at high speed

Layer Adhesion

Good

More consistent (significant advantage at high speed)

Printing Difficulty

Moderate (requires tuning)

More forgiving and stable

Mechanical Properties

Standard PETG strength

Standard PETG strength

6. How can I reduce stringing?

To reduce stringing, you can optimize printing conditions in the following ways:
• Dry the filament thoroughly before use and ensure it remains moisture-free during printing, as moisture is a major cause of stringing
• Slightly reduce the printing temperature to minimize excessive filament oozing
• Slightly increase the retraction distance to better control material flow during travel moves
Snapmaker

Snapmaker × Phaetus Liber™ High Flow Hotend for U1

From $34.99

Product Overview
• Up to 87% higher volumetric flow.
• High-speed printing for large prints with long, continuous extrusion paths.
• DLC-coated hardened steel for wear resistance.
• Seamless heat break helps reduce clogging.
• Integrated design allows for easy replacement.

Compatibility
Snapmaker U1

Online Tutorial
• Replacement and usage guide on Snapmaker Wiki

Note
• CF/GF-reinforced filaments, Wood PLA, and TPU are not recommended due to potential clogging or feeding issues during high-flow printing.
• Best suited for large prints with long, continuous extrusion paths. Speed gains may be limited for fine details, complex curves, or frequent turns.
• Perform a cold pull when switching from high-temperature filaments (such as ABS, ASA, PA, or PC) to heat-sensitive filaments (such as PLA or PETG) to help prevent clogging. See the Snapmaker Wiki for instructions.
• U1 currently requires all hotends used in the same print to be the same size.

Option

  • 0.4mm Hotend Bundle (4-Pack)
  • 0.4mm Hotend
View product