1. Inconsistent Cutting or Engraving Results

Symptoms: Cuts don’t go through completely, or engraving appears faded or uneven.

Causes:

• Dirty or misaligned mirrors/lens

• Focus height not properly set

• Laser tube power degradation

Fix:

• Clean the optics with proper lens cleaner and a lint-free cloth

• Realign mirrors and lens

• Check focus distance with the acrylic focus tool

• If output power drops significantly, consider replacing the laser tube

💡 Tip: MYounglaser machines come with precise focus tools and premium-grade laser tubes for long-term stability.

2. Machine Not Powering On

Symptoms: Total power failure or no display.

Causes:

• Blown fuse or loose wiring

• Faulty power supply

• Emergency stop button engaged

Fix:

• Check and replace the fuse if needed

• Inspect internal wiring for any disconnections

• Ensure emergency stop is disengaged

• Test the power supply unit (PSU) and replace if malfunctioning

3. Unusual Noises or Jerky Motion

Symptoms: Grinding noise, vibration, or skipping while moving.

Causes:

• Lack of lubrication on guide rails

• Debris stuck in the gantry system

• Damaged stepper motor or belt

Fix:

• Clean rails and apply lubricant regularly

• Check for loose belts or pulleys

• Replace worn-out motor or tension belts as needed

🛠️ MYounglaser Dura Series features self-cleaning linear guide rails and Japan Shinano motors, minimizing mechanical errors.

4. Laser Not Firing

Symptoms: The machine moves normally, but the laser doesn’t engage.

Causes:

• Faulty laser power supply

• Broken laser tube

• Faulty signal from control board

Fix:

• Check wiring between control board and laser PSU

• Test laser tube for discharge—replace if needed

• Use diagnostic software to check output signal