defaultMaterial.json (LaserMaker's actual library — usually C:\Program Files\LaserMaker2\Resources\) for cleanest results.
Upload your LaserMaker library file. The tool preserves all existing materials and appends your new ones.
Pick the laser type and wattage that match your machine. All entries are saved as custom materials.
Check the operations this material should support. Each one gets its own settings panel below.
Queue the material, add more if you'd like, then export the complete library file.
Output is the complete loaded library plus your queued additions. Import into LaserMaker via Material Library → Import.