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:
#define DEFAULT_AXIS_STEPS_PER_UNIT {XX,YY,ZZ,495}
- for Microstepping 1/32:
#define DEFAULT_AXIS_STEPS_PER_UNIT {XX,YY,ZZ,990}
Fan power supply: 12V, 0.2A
Geared box ratio: 5.18:1