Voron3D Wiki

Phaetus Rapido Hotend

Guide for the Phaetus Rapido hotend

On this page

Overview#

The Phaetus Rapido is a modern, high-performance hotend designed for fast heating and high flow rates, making it ideal for speed printing applications.

Specifications#

Technical Details#

ParameterValueNotes
Max Temp350°CHF version
Flow RateUp to 25mm³/sHF version
Heat Time35s to 200°CUltra-fast
Weight23gLightweight

Variants#

Standard Flow (SF):
- Flow rate: up to 15mm³/s
- Better detail quality
- Standard applications

High Flow (HF):
- Flow rate: up to 25mm³/s
- Optimized for speed
- Production printing

Installation#

Required Tools#

  1. 2mm hex key
  2. 2.5mm hex key
  3. 7mm wrench
  4. Thermal paste
  5. Heat block sock

Mounting Steps#

1. Mount heat break
2. Install heat block
3. Connect heater/thermistor
4. Install nozzle
5. Mount cooling

Configuration#

Klipper Settings#

[extruder]
step_pin: PE3
dir_pin: PE4
enable_pin: !PE5
microsteps: 16
rotation_distance: 33.500
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PA2
sensor_type: PT1000
sensor_pin: PF4
min_temp: 0
max_temp: 350
max_power: 1.0
pressure_advance: 0.035

PID Tuning#

ParameterTypical ValueNotes
Kp28.0Proportional
Ki1.8Integral
Kd115.0Derivative

Maintenance#

Regular Checks#

Weekly:
- Clean nozzle
- Check heat break
- Verify temperatures

Monthly:
- Full disassembly
- Deep cleaning
- Parts inspection

Common Issues#

  1. Heat creep
  2. Nozzle clogs
  3. Temperature fluctuations
  4. Leakage

Performance#

MaterialTemperatureSpeed
PLA200-220°CUp to 200mm/s
PETG230-250°CUp to 150mm/s
ABS240-260°CUp to 120mm/s
TPU220-235°CUp to 60mm/s

Flow Testing#

# Standard test parameters
layer_height = 0.2
line_width = 0.4
speed = 150  # mm/s

# Calculate volume
flow_rate = layer_height * line_width * speed

Troubleshooting#

Common Problems#

IssueCauseSolution
Under-extrusionHeat creepCheck cooling
StringingTemperatureAdjust retraction
LeakingAssemblyCheck torque
JammingHeat breakClean/replace

Maintenance Tips#

  1. Use thermal paste
  2. Proper torque
  3. Regular cleaning
  4. Temperature validation

Upgrades#

Compatible Parts#

Nozzles:
- Hardened steel
- Ruby tipped
- Tungsten carbide
- Brass (standard)

Heat Breaks:
- Bi-metal
- Titanium alloy
- High-flow version

Performance Mods#

  1. Enhanced cooling
  2. Better insulation
  3. Temperature sensors
  4. Nozzle materials

References#

  1. Manufacturer Documentation (manufacturer link)
  2. Voron Documentation (manufacturer link)
  3. Community Guide (external link)