Seacad 5.1 'link' -

: Includes a dedicated "red light" button to visualize the marking area and position material accurately before firing the laser. Key Technical Specifications Compatible Controllers Works with DBK21B, DBK22B, DBK4B, and DBK5B04 Supported Wavelengths Optimized for 1030–1080 nm fiber lasers File Support Compatible with standard vector and bitmap formats Platform Primarily designed for Windows 7 and above Operational Tips Official BSLAPP | SEACAD Laser Software & Driver Download

Many hobbyists find that while the hardware (like the M4 laser) is excellent, SeaCAD limits what they can actually do, often leading them to search for ways to use more robust software like LightBurn—though direct compatibility is rarely supported for these specific boards. Version Context seacad 5.1

| Extension | Description | Compatibility | |-----------|-------------|----------------| | .sd | Hull surface definition | Native to 5.1; cannot open in 4.x | | .hdb | Hydrostatic database (cross-curves, displacement) | Backward compatible with 5.0 | | .msd | Multiple surface design (for catamarans and trimarans) | New in 5.1 | | .stb | Stability test raw data | Exports to Excel CSV | | .dmg | Damage case configuration | Can be shared with SeaCad Viewer (free) | : Includes a dedicated "red light" button to

: To fill a vector shape for engraving, use the "H" (Hatch) button. use the "H" (Hatch) button.