SainSmart Genmitsu 4040-PRO CNC Router User Manual page 24

4. Insert the Z-axis stepper motor cable (4 pins) to the Z-axis stepper motor connection as shown.
5. Connect the X-Z Cable on the Y-axis left module to the X-Z Cable interface on the X module, as shown.
Z-axis Stepper
Motor Connection
Z-axis Stepper
Motor Cable (4 wires)
X-Z Cabel Connection
X-Z Cable
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