In the default HOME_COMMAND provided for CC1, the machine first performs a Z-axis homing, followed by sequential X-axis, Y-axis, and A-axis homing.
However, due to the significant height of the Z-axis driver’s heat sink, when the start position is very close to YMAX, performing X-axis homing first risks the heat sink contacting and colliding with the rear cable bracket. This could potentially damage the driver and the head board.
The new HOME_COMMAND completely avoids this issue. After completing the Z homing, it first performs the Y homing. Then, it moves forward a short distance to a safe zone before safely completing the X, Y, and A homing operations.
This update has been included in the latest CC1 configuration file. You can choose to import the new configuration and recalibrate, or copy and paste the HOME_COMMAND content in machine.xml
Following is the manual update method:
Machine Setup>Drivers>PPMC>Gcode>
Head Mountable>Default:
HOME_COMMAND:
M84; Disable motors
M300 P149 S400; Beep
;G4 P1000; Pause 1.0s
G28 Z; Homing Z first
G28 Y; Homing Y
G1 Y300 F18000;
G28 X Y A;
M400; Finish moves
M114; Report redefined position
Then Apply the settings.
