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Home > Dominator CNC > Operating Instructions for Dominator Pro CNC
Operating Instructions for Dominator Pro CNC
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Welcome to the Dominator Pro — your professional-grade CNC platform, built for power, precision, and upgradeability. This article covers essential operating instructions to get you started, stay safe, and ensure consistent performance with every job.


✅ Before You Power On

Make sure the following is completed before using the machine:

  • ✅ Machine is fully assembled per the Dominator Pro Build Series on YouTube

  • ✅ VFD and spindle are installed, wired, and properly configured

  • ✅ All motion cables (X/Y/Z and spindle) are securely connected

  • ✅ Air supply is connected (if using ATC or air assist features)

  • ✅ Emergency stop (E-stop) and limit switches tested

  • ✅ Masso controller (or other) is powered, configured, and communicating with the machine


🟢 Starting the Machine

1. Power On Sequence

  1. Turn on your main power source

  2. Ensure air compressor is running (if ATC or air-based accessories are used)

  3. Wait for the Masso controller to initialize and display its main screen

  4. Release the E-stop (if pressed)

2. Reference Axes

  • Use the Masso UI to “Home All Axes”
    This sets the machine’s origin using limit switches.


🧰 Jogging & Setup

  • Use the jog keys or on-screen controls to move each axis.

  • Load your material and secure it using clamps or vacuum.

  • Set the tool length (via touch plate or Tool Setter if equipped)

  • Set your work origin (X, Y, Z zero)


🌀 Spindle Operation

  • Spindle is controlled via Masso (M3/M5) or VFD front panel

  • RPM is set via PWM or analog voltage — typically 0.10–10.00V

Make sure your spindle has been broken in before cutting:
🔧 See: Spindle Break-In Guide →


🔄 Running Jobs

  1. Load G-code onto Masso (via USB or network)

  2. Confirm tool and work offset are correct

  3. Hit Cycle Start on the Masso interface

  4. Monitor the job — use the E-stop if needed


🛠️ After the Job

  • Turn off spindle (M5)

  • Retract Z-axis safely

  • Vacuum or wipe down bed

  • Turn off air supply and power if done for the day


🧼 Maintenance Checklist

Task Frequency
Clean linear rails & ballscrews Daily
Check spindle collet & nut Before every job
Verify air pressure & filters Weekly
Tighten motor & drive hardware Monthly
Back up Masso configuration Quarterly

📎 Additional Resources


⚠️ Safety Notice:
Always disconnect power and air supply before servicing. Follow all safety precautions. PwnCNC products are intended for skilled users building or operating hobbyist to light industrial CNC systems.


💬 Still Need Help?

If you run into issues during your first setup, our support team is here to help.
📩 Contact PwnCNC Support →

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