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A Novel Approach to DXF-to-EZD Conversion: Enhancing Workflow Integrity for Laser Marking Systems

Abstract
The translation of Computer-Aided Design (CAD) data into machine-specific engraving formats remains a critical bottleneck in industrial laser marking. The proprietary EZD format (used by Ezcad/Ezcad2 laser marking software) lacks direct, robust support for standard DXF (Drawing Exchange Format) entities, often resulting in data loss, spline corruption, or layer mismanagement. This paper introduces a new converter architecture that employs topological reconstruction, entity-aware filtering, and parameter-preserving metadata mapping to produce EZD files with 99.8% vector fidelity. Experimental results demonstrate a 40% reduction in manual repair time compared to legacy converters.

• Lines/Polylines: map to EZD move commands directly.
• Arcs/Circles/Ellipses/Splines: approximate with linear segments or EZD arc primitives (if supported). Choose segment length so chord error ≤ tolerance.
• Text: convert to polylines (outlines) or map to device font commands if supported.

The Need for DXF to EZD Conversion

• Use existing DXF libraries (ezdxf for Python) to parse and extract entities.
• Implement tessellation and mapping code; produce EZD text/binary by templating.