User Guide

By reading this instruction, you will learn about the product information and usage, and quickly get started with and use the product

I List of Shipped Items

Item Name	Photo
E3 Marking Machine
exhaust pipe
Power Adapter and Power Cord
USB cable type-C
cutting mat
Internal Engraving Support
Internal Engraving Field Lens
Material Kit
Locating Block
Quick Guide
Safety Guidelines

II. First Impressions of Xlaserlab E3

3.1 Product Structure

3.2 Common Machine States and Indicator Light Displays

Indicator display		Machine Status
Green		In laser processing
Red		Fault Alarm
Yellow		Laser Preparing
Not lit		Power on standby

3.3 Machine Specifications

3. Using Xlaserlab E3

4.1 Removing the Field Lens Protective Cover

4.2 Connect to the power supply

4.3 Connect the exhaust pipe

4.4 Check the emergency stop button

4.5 Start the machine

4.6 Software Download

4.7 Use of Accessories

marking base plate

Locating Block

Internal Engraving Support

5. Machine Maintenance

6.1 Field Lens Cleaning

6.2 Galvanometer Cleaning

6.3 Cleaning of Exhaust Purification Module

6.4 Routine Protection

1. Power on and run the device for 30 minutes every month

2. Inspect the f-theta lens and galvanometer mirror surfaces on a monthly basis

3. Operating Environment
     Storage Environment: If the product will not be used for a long time, it should be stored in a dry environment.
     Operating Environment: Use the device in a dry, well-ventilated environment with a temperature range of 10–30°C.

Instructions for Relief Operation

By reading this instruction, you will learn how to use the Xlaserlab E3 engraving, and quickly get started with and use the product

1. Connect Xlaserlab E3 to EDone and use the B field lens

2. Enter the relief mode

3. Import the file and select the material

4. Place the materials

5. Parameter Setting

6. Preview

7. Marking

Operation Instructions for Internal Engraving

By reading this instruction, you will learn how to perform internal engraving with the Xlaserlab E3, and get started with the product quickly.

1. Preparations Before Internal Engraving

1. Replace with field lens A

2. Install theInternal Engraving Support

3. Prepare and measure the length, width and height of the internal carving material
   Please note that not all transparent glass is suitable for internal engraving. For optimal results, it is recommended to use K9 optical crystal glass.

   The maximum internal engraving volume supported by Xlaserlab E3 is 70mm (x) * 70mm (y) * 100mm (z), which means the maximum height of the crystal shall not exceed 100mm. The length and width of the crystal can be larger than 70mm, but the optimal maximum horizontal area of the engraving model should be within 50mm * 50mm.

2. Connect Xlaserlab E3 to EDone.

3. Enter the inner engraving mode

4. Import the file, enter the crystal dimensions and select the material

5. Placement of Materials

6. Parameter Setting

7. Recording

8. Marking

Frequently Asked Questions

1. No engraving effect

• Surface Contamination

• Fingerprints or liquid residues

• Engraving parameter error

• Insufficient laser power

2. Blurred or indistinct engraving results

• The model size has not been adjusted

• Excessively high laser power

• Improper dot pitch and layer height parameters

3. Internal Cracks in Materials

• Excessively high laser power

• Engraving speed is too slow (dot marking time is excessively long)

Instructions for Curved Surface Marking

How to mark on curved surfaces with Xlaserlab E3

1. Notes Before Curved Surface Marking

• Use materials with smooth surfaces, gentle curves, and angles that meet the following requirements: the angle between the tangent to the curve and the horizontal line shall not exceed 45 degrees.

• The distance between the highest point and the lowest point on the curved surface shall not exceed 10 centimeters.
• Sudden height changes, sharp corners, and inclined surfaces are not supported.

• Avoid using highly reflective materials.

2. Connect Xlaserlab E3 to EDone.

3. Open EDone on the computer and select curved surface marking in the marking mode

4. Border Walking and Focusing

5. Measure the density

1. EDone provides a recommended measurement density based on the size of the selected area. You can adjust the measurement density by modifying the rows and columns.

2. Click " Start Measurement ", and the device will measure the height of each point on the selected area.
3. After the measurement is completed, EDone generates a 3D model. To rotate and pan the model for viewing, operate with the left and right mouse buttons.

4. Click Finish. The selected and measured area will be displayed as the processing area on the canvas.

6. Import Graphics

1. Use the tools on the left side of the canvas to create objects on the canvas. You can import images, insert shapes, enter text, draw vector graphics, and much more.

2. Select the objects on the canvas. At the top of EDone, you can use these tools to further edit the selected objects.

3. Select the objects on the canvas, and set parameters for the selected objects on the right side of EDone.

7. Marking

Instructions for Color Carving Operation

I. Introduction to the Ultraviolet Laser Metal Color Engraving Process

1. Core Principle

1. Dual effects: photochemical oxidation + low-heat accumulation;
2. When the surface of stainless steel is irradiated by laser, metal oxide films of different thicknesses (chromium oxide, iron oxide) are formed;
3. Utilizing the principle of thin-film interference: with different oxide layer thicknesses, the wavelengths of reflected visible light vary, presenting colors including black, gray, gold, yellow, red, purple, blue and green;
4. Ink-free and pigment-free, physico-chemical coloring with scratch resistance, corrosion resistance and non-fading properties.

2. Common Metal Materials

1.304 stainless steel (the most commonly used and primary material)

1. With a high chromium content, it readily forms a uniform and dense oxide film under laser irradiation, delivering excellent coloration via thin-film interference;
2. Widest color coverage: capable of stably producing gold, red, purple, blue, black and bronze;
3. Oxidation-resistant, not easy to rust, with the color carving layer featuring strong adhesion, wear resistance and no color fading;
4. Most widely used on the market: universally applicable for nameplates, accessories, kitchenware, hardware and gifts;
5. Moderate hardness, and no deformation or edge burning after UV cold processing.

2.316 Stainless Steel (Special for High-end Color Carving)

1. Its corrosion resistance is far superior to that of 304 stainless steel, making it ideal for bathroom fixtures, medical equipment and outdoor hardware.
2. The oxidation reaction is more controllable, delivering a finer texture and a premium matte finish;
3. Stable composition with minimal color difference in mass production;

3. Titanium Alloy (High-end Color Engraving)

1. Titanium readily forms oxide layers with controllable thickness, endowing the colored engravings with extremely high saturation and vivid colors;
2. Biocompatible and lightweight, applicable for jewelry, medical devices, and watch cases;
3. Heat-resistant, fade-proof, and the ultimate benchmark for color layer stability;

3. Color rendering logic of stainless steel colored carvings

1. Laser power: The higher the power, the thicker the oxide layer, and the color gradually changes from light to dark (gold → red → purple → blue-black)
2. Marking speed: The slower the speed, the longer the heating/oxidation time, and the darker the color
3. Pulse frequency:
   1. Low frequency: Strong heat accumulation → Dark and black color families
   2. High frequency: Cold working, oxidized thin layer → Light color, gold / yellow / light red
4. defocus
   1. Negative defocus (focus shifts downward): Light spot converges, energy is dense → Cool colors (blue, cyan, purple)
   2. Positive defocus (focal point upward): soft light spot, uniform heat → warm colors (gold, yellow, red, brown)
   3. Focus: Fine etching, grayish and light color tones

4. Process Advantages and Application Scenarios

1. Advantages

• Consumable-free, eco-friendly and non-corrosive;
• Stable in color, friction-resistant and sweat-corrosion resistant;
• Minimal heat-affected zone, no deformation on thin-walled and mirror-finish stainless steel.

2. Common application scenarios: color logo engraving on stainless steel jewelry, kitchenware, hardware nameplates, medical devices, cultural and creative gifts, and bathroom hardware.

II. Notes

1. Pre-treatment: It has a greater impact on color uniformity than parameters (the most easily overlooked factor)

1. It is mandatory to achieve "zero oil stain and zero fingerprint"
   1. Wipe unidirectionally with anhydrous alcohol/acetone + lint-free cloth, apply immediately after wiping, and do not touch the area with your hands afterward.
   2. Even a single fingerprint will leave a color difference or white spot once printed, which cannot be wiped off afterwards.
   3. Do not clean with detergent or water under any circumstances, as residual water stains will directly cause discoloration and uneven coloration.
2. The surface condition of the substrate shall be uniform
   1. For workpieces from the same batch, the surface roughness and polishing method must be consistent. For 304 stainless steel from different batches, differences in alloy composition or surface passivation layer will directly lead to unstable color.
   2. When producing colored carvings on mirror-finish stainless steel, uneven interference colors are more likely to occur than on brushed-finish surfaces. It is recommended to test the color on a scrap piece first.

2. Equipment and Calibration: A Slight Difference, a Huge Disparity in Color

1. Color engraving must be performed using the central area of the lens
   1. When using a 150mm field lens for color engraving, try not to engrave the full working area, as the edge will suffer from uneven spot energy due to field lens distortion, resulting in chromatic aberration and deformation.
   2. It is recommended to consistently use the central area of ≤110×110mm and avoid the edges.
2. Focusing must be precise, and confirmation is required before each shot
   1. The focal position determines the spot size and energy density; even a 1mm defocus deviation will cause the color to change.
   2. It is recommended to use a focusing block or red light focusing assist, fix the position properly before testing the color.

3. Parameters and Technology: The Core Logic of Color Carving

1. Fix the parameters first, then adjust the color levels, and don’t tweak multiple variables randomly
   1. When adjusting the color, only modify one parameter at a time (for example, only change the speed while keeping others unchanged), otherwise you will have no idea which factor has affected the color at all.
   2. Use scrap pieces to create a "parameter test matrix", record the corresponding colors under different power/speed/defocus settings to build your own color calibration chart, and avoid blind testing every time.
2. Line spacing and scanning method determine color uniformity
   1. The recommended line spacing for color engraving is 0.02~0.05 mm, with back-and-forth filling to avoid streaky color differences.
   2. If the line spacing is too wide, light-colored streaks from the underlying layer will show through; if it is too dense, local heat accumulation will occur, resulting in excessively dark color or even yellowing due to overheating.
3. Color is not a single parameter, but a combination of "energy + defocus + number of pulses"
   1. Gold / Yellow: High frequency + Fast speed + Slightly positive defocus, with a thin oxide layer.
   2. Red / Purple: Medium frequency + Medium speed + Zero / Slightly negative defocus.
   3. Blue / Black: Low frequency + slow speed + positive defocus (black requires stronger heat accumulation).
   4. To achieve more saturated color payoff, you can use the technique of "applying a light base layer then layering a darker shade on top", which delivers more consistent results than a single high-intensity application.

4. Environment and Post-processing: Impact on Yield and Stability

1. The ambient temperature and humidity shall be stable
   1. Large temperature differences and high ambient humidity can cause fluctuations in laser power, resulting in inconsistent color depth among workpieces from the same batch.
   2. Pay attention to equipment heat dissipation in summer, as power attenuation will directly affect the color rendering; when the temperature is too low in winter, warm up the equipment before turning it on.
2. Do not use alcohol or steel wool for vigorous wiping after marking
   1. The oxide layer of laser color engraving is very thin, and prolonged soaking in alcohol or vigorous wiping may cause the color to fade or even disappear completely.
   2. For daily cleaning, simply wipe gently with a soft cloth and clean water. If scratch resistance is required, a transparent protective coating can be applied after marking (note that the coating must not corrode the oxide layer).
3. Avoid direct contact with strong acids and strong bases after marking
   1. The colored stainless steel engraving layer is subject to corrosion, discoloration and graying in strong acid and strong alkali environments, so it is not suitable for workpieces that come into direct contact with such media.

III. Preparations Before Metal Color Engraving

1. Create a test matrix

2. Processing Effect Evaluation

1. If you are satisfied with the color result in a specific grid, please record this set of parameter settings, including the processing speed and power.
2. If you want to improve the color quality, locate the target color and its corresponding processing speed and power, then generate a bidirectional gradient test array by adjusting the settings to fine-tune the power and speed.

3. Save the color swatch file

IV. Carving Operation

1. Color Carving Image Editing

• Launch the software and enter the color carving editing interface

• Select the original image

• Select Material Matrix File

• Select layer color

2. Pattern Editing

3. Start Marking

Conveyor Belt Operating Instructions

1. Connect the conveyor belt to Xlaserlab E3

1. Place the conveyor belt in the correct orientation on the Xlaserlab E3
2. Connect the conveyor belt to Xlaserlab E3 via a connecting cable
3. Connect the Xlaserlab E3 to your computer using a USB cable.
4. Connect Xlaserlab E3 in EDone

Batch marking with conveyor belt

1. Notes before marking

2. Marking Mode - Batch Marking

2.1 Place the material and perform laser focusing

2.2 Capture the background and design the processing object

• Ensure that the background photo fully and clearly displays these materials. You can adjust the shooting environment by adjusting the fill light of the device or pulling down the protective case.

3. Import Graphics

1. Use the tools on the left side of the canvas to create objects on the canvas. You can import images, insert shapes, enter text, draw vector graphics, and more. Move the shape to be carved into the object on the background.

2. Select the objects on the canvas. At the top of EDone, you can use these tools to further edit the selected objects.

4. Marking

Instructions for Use of Roller

1. Connect the roller to the Xlaserlab E3

2. Connect the Xlaserlab E3 to EDone.

3. Placement of Materials

4. Design Processing Object

5. Parameter Settings

6. Preview Processing Area

7. Start marking

Instructions for Use of Gripper

1. Connect the gripper to Xlaserlab E3

2. Connect the Xlaserlab E3 to EDone.

3. Placement of Materials

4. Design Processing Object

5. Parameter Settings

6. Preview Processing Area

7. Start Marking