Poor edge quality. Burn marks. Incomplete cuts. Unexpected downtime.

In many cases, these problems are not caused by the fiber laser cutting machine itself — they result from incorrect operating procedures.

From machine startup and nozzle inspection to parameter setup, edge finding, and cutting path optimization, every step directly affects cutting quality, production efficiency, and machine stability.

A standardized fiber laser cutting machine operation process helps operators reduce cutting defects, improve dimensional accuracy, maintain stable production, and extend machine lifespan.

In this guide, we’ll walk through the complete fiber laser cutting machine operation workflow used in real production environments. Whether you are a beginner or an experienced operator, this step-by-step guide will help you operate a fiber laser cutting machine more safely, efficiently, and accurately.

If you are looking for a reliable fiber laser cutting machine for stable and efficient production, feel free to contact our team for professional cutting solutions and machine recommendations tailored to your manufacturing needs.

Step 1 – Power On the Machine Correctly

Many operators underestimate how important startup procedures really are.

An incorrect startup sequence may affect:

• Machine stability

• Laser performance

• Safety systems

• Long-term equipment reliability

Recommended Startup Sequence

Always power on the machine in the following order:

(1) Main power

(2) Voltage regulator (if equipped)

(3) Air compressor

(4) Cutting gas

(5) Electrical cabinet

(6) Chiller

(7) Laser source

(8) Control software

This startup sequence ensures all supporting systems are fully prepared before the laser begins operating.

Step 2 – Complete All Pre-Cutting Inspections

Many cutting problems actually begin before cutting starts.

Proper preparation helps operators:

• Reduce cutting defects

• Improve production stability

• Prevent machine alarms

• Avoid unexpected downtime

2.1 Return the Machine to Origin 

Before cutting begins, operators should always return the machine to origin to ensure the coordinate system is fully synchronized.

When “Go Home” is activated, the machine automatically returns the Z-axis first to avoid collision with the sheet material, followed by the X, Y, and W axes.

Although this step looks simple, it plays an important role in positioning accuracy and cutting stability.

2.2 Inspect the Nozzle

The nozzle directly affects:

• Assist gas flow

• Piercing performance

• Edge quality

• Cutting stability

Before production, operators should inspect:

• Nozzle condition

• Nozzle installation

• Nozzle size

The nozzle opening should remain perfectly round. A damaged or loose nozzle may lead to unstable cutting quality or assist gas problems.

Different materials and thicknesses also require different nozzle diameters and types.

2.3 Check the Protective Lens

Lens contamination is one of the most common causes of unstable cutting quality.

A quick inspection can be performed using the red light test.

Red Light Inspection Method

(1) Place white paper approximately 200 mm below the nozzle

(2) Turn on the red light

(3) Observe the light spot

If the spot appears clean and uniform, the lens condition is normal.

If black spots appear, the protective lens may be contaminated.

2.4 Photo Paper Inspection

If lens contamination is suspected, operators should perform a photo paper inspection to check the optical path condition.

First, place the photo paper beneath the laser head and configure the burst parameters in the control software, such as:

• Height from nozzle to paper

• Power

• Frequency

• Duty cycle

• Pressure

Then fire the laser and observe the marks on the photo paper.

If the spot appears clean and uniform, the optical path condition is normal.

If black spots repeatedly appear in the same position, it usually indicates contamination inside the optical path or on the protective lens.

When multiple black spots appear continuously at different positions, the lens may contain dust, oil contamination, or internal damage.

If the lens surface appears foggy and the light spot cannot be clearly identified, operators should also inspect the cutting quality and slag condition during production, since severe contamination may already affect cutting performance.

Regular photo paper inspection helps maintain stable laser output and reduce cutting defects caused by lens contamination.

2.5 Check Beam Center

Proper beam center alignment helps maintain stable cutting quality and smooth assist gas flow.

Modern fiber laser cutting machines can use a coaxial alignment tool to quickly and visually calibrate the laser beam center and nozzle center on the same axis.

The calibration process usually includes three steps:

(1) Fix the coaxial tool onto the nozzle and turn on the red light

(2) Connect the tool to a mobile device to display the visual alignment interface

(3) Adjust the X and Y axis screws until the light spot is perfectly centered

Compared with traditional manual calibration methods, the coaxial tool provides:

• Faster calibration

• Higher accuracy

• Better stability

• Lower operational risk

A properly centered beam helps achieve:

• Vertical cutting edges

• Smoother cutting surfaces

• Reduced burrs

• More stable cutting performance

Regular beam center inspection helps maintain stable laser performance and improve overall cutting consistency.

If you would like to learn more about Bodor laser nozzle vision coaxial alignment tool or improve the calibration efficiency and cutting stability of your fiber laser cutting machine, feel free to contact us.

Step 3 – Start the Cutting Process

Once all pre-cutting inspections are completed, operators can begin the actual cutting workflow.

The first step is to import and prepare the drawing file. This process includes drawing inspection, layer setup, lead-in configuration, compensation settings, and cutting path optimization before production begins.

3.1 Import the Drawing File

First, import the cutting file into the control software.

Common supported file formats include:

• DXF

• DWG

• PLT

• NC

After importing the file, operators should check whether:

• The drawing is complete

• The dimensions are correct

• The contours are closed

• The unit system is correct

This helps avoid cutting errors caused by missing lines, incorrect scaling, or broken contours.

3.1.1 Set the Graphic Layers

After the drawing is imported, operators should select the graphics and configure the layer colors.

Different layer colors can represent different cutting processes, such as:

• Outer contour cutting

• Inner hole cutting

• Marking

• Special cutting conditions

For small holes or circles, separate layers can also be configured according to the material and assist gas.

Proper layer setup allows the machine to apply the correct cutting parameters to different parts of the drawing.

3.1.2 Set the Lead-In

Next, operators should configure the lead-in settings.

Select the graphics and open the Lead function in the control software. Then configure the lead-in type, length, and angle according to the cutting requirement.

A proper lead-in allows the laser to pierce before entering the actual contour, helping reduce visible marks and improve edge quality.

 Incorrect lead-in settings may cause burn marks or unstable piercing.

3.1.3 Set Gap and Micro-Joint

After setting the lead-in, operators can configure gap and micro-joint settings.

Gap settings create small openings in the cutting path, while micro-joints keep small parts slightly connected to the sheet during cutting.

These settings help prevent:

• Small parts from tipping

• Workpieces from shifting

• Collision with the laser head

• Unstable cutting during high-speed operation

3.1.4 Apply Kerf Compensation

Next, operators should apply compensation through the Comp function.

Because the laser beam removes material during cutting, compensation is needed to ensure the final part size matches the drawing.

Operators should configure:

• Compensation type

• Inner width

• Outer width

• Offset direction

Correct compensation helps improve dimensional accuracy, especially for parts that require assembly or tight fitting.

3.1.5 Set the Berth Position

After compensation is completed, operators should set the berth position.

The berth point defines the starting reference position of the cutting layout on the sheet.

Operators can select the berth point according to the actual sheet position, such as:

• Upper left

• Upper right

• Lower left

• Lower right

The berth position should match the actual material placement to avoid cutting outside the sheet area.

3.1.6 Sort the Cutting Path

Finally, operators should optimize the cutting sequence using the Sort function.

The control system can automatically optimize the cutting order based on the drawing layout.

In general:

• Inner contours should be cut before outer contours

• Small features should be processed before large contours

• The cutting path should reduce unnecessary machine movement

A proper cutting sequence helps improve production efficiency and reduce the risk of part movement during cutting.

3.2 Set the Cutting Parameters

After the drawing and cutting path are prepared, operators can begin parameter setup.

This step directly affects:

• Cutting quality

• Cutting speed

• Piercing performance

• Edge smoothness

First, open the Layer Setting dialog in the control software.

Then import the parameter library and select the correct cutting parameters according to:

• Material type

• Material thickness

• Assist gas

• Nozzle type

• Nozzle size

After confirming the parameters, apply the settings before production begins.

Incorrect parameters may lead to burrs, slag, rough edges, or incomplete cutting.

3.3 Calibrate the Laser Head

Before cutting begins, the laser head should be calibrated to ensure stable height following.

First, confirm whether the nozzle type and size are correct.

Then lower the laser head to approximately 10 mm above the sheet surface and start the calibration function in the control software.

After calibration is completed, operators should check:

• Stability value

• Smoothness value

Both values should remain within the normal range to ensure stable cutting performance.

3.4 Perform Edge Finding

Edge finding is used to detect the actual position and angle of the sheet.

First, move the laser head close to the corner of the sheet.

Then open the Edge Seek function and configure:

• Edge finding direction

• Auto mode

• 3-point type

• Sheet size

• Edge finding speed

After the settings are completed, start the edge finding process.

Once finished, the system will automatically display the corrected sheet position and rotation angle.

Accurate edge finding helps prevent positioning errors and material waste.

3.5 Frame the Cutting Area

Before cutting, operators should perform frame checking.

Activate the Frame function, and the machine will move around the outer boundary of the cutting area without firing the laser.

During the movement, operators should observe whether the red light always stays within the sheet area.

This step helps prevent:

• Cutting outside the sheet

• Clamp collision

• Incorrect material positioning

3.6 Run the Cutting Simulation

After frame checking, operators should run a software simulation.

Open the Simulation function and observe the cutting path in the control software.

Operators should check for:

• Abnormal cutting paths

• Incorrect cutting sequence

• Missing contours

• Unexpected movements

Simulation helps reduce cutting errors before actual production begins.

3.7 Perform a Trial Cut

Before batch production, operators should first perform a trial cut.

First, enable gas pre-blowing several times to clean the nozzle and gas path.

Then perform frame checking again and start cutting.

After the first part is completed, operators should inspect:

• Edge quality

• Burr condition

• Cutting accuracy

• Hole quality

If necessary, adjust the cutting parameters before continuing mass production.

3.8 Monitor the Cutting Process

During cutting, operators should continuously monitor the machine status through the control software or mobile monitoring system.

Important monitoring items include:

• Focus lens status

• Collimation lens status

• Cutting head condition

• Alarm information

If abnormal alarms appear, operators should stop cutting immediately and identify the cause before continuing production.

Continuous monitoring helps maintain stable cutting quality and reduce unexpected downtime.

Step 4 – Follow the Correct Power-Off Procedure

After production is completed, operators should shut down the machine in the correct order.

A proper shutdown procedure helps:

• Protect the laser source

• Maintain cooling stability

• Prevent electrical damage

• Extend equipment lifespan

The recommended shutdown sequence is as follows:

1. Close the control software

2. Turn off the laser source

3. Turn off the chiller

4. Shut off the cutting gas

5. Turn off the electrical cabinet

6. Turn off the air compressor (if equipped)

7. Turn off the voltage regulator (if equipped)

8. Disconnect the main power

Before leaving the machine, operators should also confirm:

• Gas pressure has returned to zero

• Residual air has been released

• The machine area is clean

• The cutting head is free from slag or dust

Proper shutdown and daily cleaning help maintain long-term machine stability and reduce maintenance issues.

Conclusion

Operating a fiber laser cutting machine is not simply about starting the machine and beginning production. Stable cutting quality depends on every stage of the workflow, including machine startup, nozzle inspection, drawing setup, parameter configuration, calibration, edge finding, trial cutting, and proper shutdown procedures.

In actual production environments, many cutting problems such as burrs, unstable edges, incomplete cutting, or unexpected downtime are often related to incorrect operation rather than the laser source itself.

By following a standardized operating process, operators can improve production consistency, reduce cutting defects, maintain safer machine operation, and extend equipment lifespan.

As fiber laser cutting technology continues to develop, modern control systems are becoming more intelligent and automated. However, stable production still depends on proper operation and daily maintenance. Understanding the complete cutting workflow remains one of the most important skills for every laser cutting operator.

If you are looking for a reliable fiber laser cutting machine or want to improve your current cutting efficiency and production quality, our team is here to help. Contact us today for professional laser cutting solutions, machine recommendations, and technical support tailored to your manufacturing needs.