Phaetus RAPIDO 2 HF Blue Hotend for 1.75 mm Filament

Phaetus RAPIDO 2 hotend in the HF high-flow configuration, featuring a blue heatsink and designed for 1.75 mm filament. Its extended heating zone is intended for fast printers that require more consistent material melting than a conventional hotend can provide.

This product is the RAPIDO Hotend 2 HF. It should not be confused with the RAPIDO 2 Plus or RAPIDO 2F, as those versions use different temperature sensors and replacement components.

Main features

• HF high-flow configuration.
• Blue aluminium heatsink.
• Titanium heatbreak.
• Extended plated-copper heater block.
• Titanium-alloy structural screws.
• 0.4 mm plated-copper nozzle for 1.75 mm filament.
• Replaceable 104NT temperature sensor.
• Rigid structure designed to make one-handed nozzle changes easier.

HF version and UHF alternative

The HF configuration has a more compact geometry than the UHF variant and is suitable when increased flow is required without adding the length of a UHF melting zone.

For installations requiring a longer melting zone, see the black Phaetus RAPIDO 2 UHF. Before choosing either version, check the available toolhead space, nozzle position and part-cooling duct compatibility.

3D printer compatibility

The RAPIDO 2 can be integrated into machines such as the VORON 2.4, VORON Trident and other CoreXY printers when the toolhead uses a mount specifically designed for the RAPIDO HF geometry.

Compatibility with a printer family does not imply a direct installation. VORON 0, Creality Ender 3, CR-10, Prusa and similar machines may require a printed or machined mount, a modified cooling duct, adapted wiring and firmware configuration.

Always check:

• The mechanical mount and total hotend length.
• The final nozzle position relative to the bed-level sensor.
• The available clearance around the heater block and silicone sock.
• The voltage and current capacity of the heater output.
• The 104NT sensor type and its firmware configuration.

Nozzles and filaments

The supplied nozzle is a 0.4 mm plated-copper model. Before fitting another nozzle, verify the M6 thread, length, sealing surface and geometry required by the HF configuration.

The hotend can process many thermoplastics, but hotend compatibility does not mean that the supplied nozzle is suitable for every material. A wear-resistant nozzle is recommended for carbon-fibre, glass-fibre, metal-filled and other abrasive filaments.

Package contents

• Pre-assembled Phaetus RAPIDO 2 HF hotend.
• Groove-mount adapter.
• 0.4 mm plated-copper nozzle.
• HF silicone sock.
• Mounting screws and tools.
• Filament-tube collet and retaining clip.
• Heater and temperature-sensor extension cables.

Installation and configuration

Installation requires checking the printer electronics and configuring the firmware for the corresponding 104NT sensor. Do not use a PT1000, PT100 or unrelated NTC thermistor configuration without first verifying its parameters.

After assembly, make sure the heater block, nozzle and sensor are correctly secured. Perform PID tuning, verify