CAMaster Cobra XT3 CNC Router

User's Manual

Operating the Cobra XT3 CNC Router


Startup Procedure

  1. Turn on your control computer.
  2. Start Wincnc by Double-clicking the Wincnc icon on the computer's desktop.
  3. Power on the control box.
  4. Disengage the E-stop by twisting it clockwise. It will "pop" out.
  5. Optional: You may choose to save some time here by transiting the machine close to the positions of the homing switches using the arrow keys.
  6. Home the machine by clicking the Home button on the Wincnc interface. Alternatively, you may type G28, then press the Enter key.

Measure your tools

  1. Select Tool 1 typing T1.1 and then press Enter.
  2. Measure Tool 1 by clicking the Measure Tool 1 icon on the Wincnc interface.
  3. Select Tool 2 typing T2.1 and then press Enter.
  4. Measure Tool 2 by clicking the Measure Tool 2 icon on the Wincnc interface.
  5. Select Tool 3 typing T3.1 and then press Enter.
  6. Measure Tool 3 by clicking the Measure Tool 3 icon on the Wincnc interface.

Running a Job


Shutdown Procedure

  1. Park the machine.
  2. Turn off power to the control box.
  3. Unplug the control box, and optionally turn off the air supply to the machine.
  4. Close the Wincnc control software.
  5. From the computers Start menu, select Shut Down, then click the Shut Down button.

Command Reference


M3.1 - Turn on main cutting spindle

This command turns on the main (center) spindle.


M3.2 - Turn on left auxillary spindle

This command turns on the second (left) spindle.


M3.3 - Turn on right auxillary spindle

This command turns on the third (right) spindle.


M5 - Turn off all spindles

This command turns off all the spindles.


M30 - End of Program

This command marks the end of a program. It will turn off all the spindles, retract the Z axis head all the way to the top, then park the machine.


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