![[Laser cut and engrave] Black Plastic Material Calibration Matrix Grid](https://storage-us.atomm.com/resource/xtool/community/attachment/xtool-community/c7dbf72f-80f8-4936-a295-b02198c74b22.jpg?x-oss-process=image/resize,w_1200,h_900,limit_0/interlace,1/format,webp/auto-orient,1)


Optimize your engraving workflow with this high-density test matrix for Black PLA. This file is pre-configured to help you identify the perfect balance between high-contrast marking and material melting. I’ve tuned this grid to find the 'white-mark' threshold on IR lasers and the clean matte finish on Diode modules. Run this test first to save time and prevent ruined 3D prints