The Tronxy X5SA Titan-Style Geared Bowden Extrudercombined with the NEMA 17 Stepper Motor (Model 42SHDC4080Z-26B) is areliable factory and upgrade component used natively on CoreXY 3D printers likethe Tronxy X5SA Pro. This assembly uses a 3:1 gear reduction ratio to vastlyincrease pushing torque, providing stable extrusion and minimizing filamentskipping.

Key Specifications & Features

• Extruder Type: Titan clone / Titan-style geared reduction extruder.
• Configuration: Setup as a Bowden feed system, though easily adaptable into a direct-drive carriage assembly.
• Gear Ratio: 3:1 reduction mechanical advantage, allowing a lightweight motor to push with high force.
• Filament Compatibility: Optimized for 1.75mm standard and flexible filaments (like TPU).
• Stepper Motor Model: 42SHDC4080Z-26B (Standard NEMA 17 form factor, ~40mm body depth).
• Step Angle: 1.8° per full step (200 steps per revolution).
• VREF Current Range: Typically driven around 0.7A to 1.0A depending on your mainboard configurations to balance heat and torque.

Important Calibration Notes

If you are replacing a non-geared stock extruder with thisTitan-style unit, or configuring a custom firmware (like Klipper or Marlin),you must adjust two major settings:

1. E-Steps (Steps/mm): Because of the 3:1 geared reduction, your extruder steps will need to increase significantly. The baseline starting value for Titan extruders is typically around 390 to 415 steps/mm (subject to precise measurement calibration). []
2. Motor Direction: Geared mechanisms change the output rotation direction. If your filament flows backward after installation, you must reverse the extruder motor direction by either flipping the middle pins on the motor cable harness or altering the direction parameter in your firmware configuration.