Description for Bulldog XL Extruder

Technical Description for the Bulldog XL Extruder of Reprapdiscount

Motor current adjustment:

  • Maximum motor current: 1A
  • Recommended motor current: 0.6A


Wiring schema for the stepper motor:

Signal Color
A- Brown
B+ Yellow
B- Blue
A+ Red


Setting Steps/Unit in Marlin Firmware:

  • for Microstepping 1/16:
  • for Microstepping 1/32:


Fan power supply: 12V, 0.2A

Geared box ratio: 5.18:1

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