Direct File Import
Improved Flexibility and Ease of Use
Users can import DXF and PDF file formats directly into the control software for any ULS laser system. In addition to these formats, XLS users can also import slices from 3D solid models in STL format and import G-code files.
DXF File Format
The DXF import process supports vectors only and will parse a DXF file for all vector data. Color assignments in the DXF file format are preserved and used to assign process type and settings to each vector path allowing users to assign different processes and settings to different colored vector paths in the design file. Users can specify scale and also force the design to the center of the field to eliminate issues with coordinate systems in the DXF file format. High fidelity vector data is passed to the laser system control software allowing for a high level of accuracy when working with 2D CAD data.
PDF File Format
The PDF file format supports both raster and vector data. Color assignments in the PDF file format are preserved and used to assign process type and settings to both raster and vector data allowing users to assign different processes and settings to different colored elements in the design file. Support for both raster and vector data makes the PDF file format very versatile for importing designs for laser engraving, marking and cutting.
STL File Format (XLS only)
The STL file format allows users to take advantage of solid models commonly used in most engineering and product development environments. A user interface in the import process allows users to view and rotate a solid model and create a slicing plane that generates a vector cross-section of the solid model for vector cutting or marking. This process makes dealing with solid models intuitive and easy for users of laser systems.
G-Code File Format (XLS only)
The G-code format contains instructions typically sent to CNC machine tools for vector cutting and machining processes. The G-code importer will extract the vector data from the G-code file for vector cutting and marking on a laser system. This format allows users to leverage any investment they may have in CAM software for CNC machining and use the same process to create design files for laser material processing.
The wide variety of file formats described above give users flexibility to take advantage of a multitude of different types of design software available today from graphics software and 2D CAD software to the latest solid modeling software and even machine tool data. The import process also allows laser system operators to take advantage of the common interchange formats to process designs created by others on software the operator may not own or be trained to use. Direct File import allows laser processing to be more seamlessly integrated into an organization's workflow and reduces disruption required for software training.
Improvement in Vector Processing Quality
Because the print process is controlled by the operating system of the PC, this process has several limitations for users of laser material processing systems. The operating system requires the user to select a fixed resolution for the print process. This resolution is used to control the raster process and defines the number of lines per inch for the raster engraving and marking. Users choose different resolutions based on throughput and image quality needed. Lower resolutions reduce the number of raster passes needed to engrave or mark the pattern which increases throughput. However, lower resolutions adversely affect the quality of vector cut and mark data without improving vector throughput.
Using the Direct File Import option means the resolution of raster data can be independent of the resolution of vector data. When design files are imported, the user can select an image resolution for the raster data to control throughput for raster imaging independent of vector resolution. The import engine can apply the selected resolution to all raster data and simultaneously maintain the highest fidelity for the vector data. This benefits the user by providing the best possible vector quality for laser cutting and marking while optimizing throughput of raster data. No compromises are necessary.
An additional limitation to printing is that the operating system print engine renders curves, splines, and other non-line elements into patterns of small line segments called polylines. A circle for example might be rendered with a number of small line segments forming a polygon as seen in the illustration below. The import process overcomes this limitation by passing the true circle, arc and curve data directly to the laser system control software, allowing the laser system to produce higher fidelity marking and engraving results which improves laser material processing quality for the user.