In fill engraving and image engraving modes, the LX2 software provides two key parameters: Engraving Density and Overscan. These settings help you control the engraving detail, speed, and uniformity. This guide explains their functions and how to configure them correctly.
1. Engraving Density
Definition
Engraving density determines the number of lines or dots engraved per centimeter. The setting range is 10–300.
Low density (e.g., 10)
- 10 lines or 10 dots per centimeter (1 mm spacing)
- Suitable for large-scale or rough engraving
- Faster processing time
High density (e.g., 100)
- 100 lines or 100 dots per centimeter (0.1 mm spacing)
- Produces finer details
- Longer processing time
Tips
Adjust the engraving density according to the material and the desired level of detail. Lower densities are ideal for coarse patterns or faster production, while higher densities are recommended for intricate designs where detail matters.
2. Overscan
Definition
Overscan provides additional movement space for the Laser Module to accelerate and decelerate before and after the edges of a design. This ensures uniform engraving across the entire graphic.
Why Overscan is Needed
When the laser reaches the edge of a graphic, it must decelerate to change direction, then accelerate back to the set engraving speed.
Due to physical limitations of the Laser Module, this deceleration phase causes the laser to linger longer at the edges, which can result in deeper engraving along the edges compared to the center.
Overscan solves this by extending the path outside the actual design area. During this extension, the laser remains off while moving, allowing it to reach the correct speed before engraving starts.
Overscan Parameters
Distance (left value):
Sets the actual extra distance for the laser module to accelerate and decelerate.
Higher processing speeds require longer distances.
Percentage (right value):
Sets Overscan as a percentage of the processing area.
Larger percentages extend the scanning distance, reserving more space for laser movement.
Tips
Proper Overscan settings ensure consistent engraving depth, especially at the edges of detailed or high-speed engravings
3. Processing Preview
After configuring Engraving Density and Overscan, click the Process button in the lower-right corner to enter the Processing Preview interface.
- The preview simulates the laser’s movement path.
- Overscan areas are displayed as red lines, indicating sections where the laser moves without emitting light.
- Use the Play button in the lower-left corner to review the entire processing path.
Tips
Reviewing the preview allows you to verify both density and overscan settings before starting actual engraving, avoiding unexpected depth variations or missed edges.