Starting and monitoring a material test

Lesson guide

1. Open material-test-start.lzrproj and stay disconnected. Material Test Preview needs your own configured machine profile selected; it does not need a connection.
2. In Laser Tools > Material Test, set X to Power: three columns, 10 to 30%. Set Y to Speed: two rows, 1200 to 1800 mm/min.
3. Choose Fill, a 1 mm interval, 8 x 8 mm cells and 3 mm spacing. Keep Text labels and Border on; inspect their own speed/power settings.
4. Enable Use absolute center and set X 100 / Y 100. Preview the cells, labels, travel and overscan. This centers the complete generated job, including labels.
5. To save separately, choose Custom test recipe, enter a descriptive name, then Save Recipe and Export. A name change alone does not create a separate selected recipe.
6. Keep the JSON export with the project. Offline work ends here. The project is context; the generator uses the recipe's own settings.

Independent practice

Import material-test-practice-recipe.json, select Material test practice start and click Load. Set the practice targets below, then save/export a new recipe and compare its settings with material-test-practice-answer.json.

• X Power: 3 columns, 15 to 35%. Y Speed: 2 rows, 1500 to 2100 mm/min.
• Fill; 6 x 6 mm cells; 4 mm spacing; 1 mm interval; labels and border on; absolute center X 120 / Y 100.
• Choose Custom test recipe before Save Recipe. Compare settings, not recipe names or generated IDs.

• Which power values belong to the three columns?
• Why does opening the project alone not load the test settings?
• What does Show Overscan change in Preview?

Explained answers and files

Practice grid

Columns are 15%, 25% and 35%; rows are 1500 and 2100 mm/min. Six Fill cells are expected.

Recipe versus project

The JSON contains generator settings. The native project supplies context; it is not the generated grid.

Display and results

Show Overscan controls the display of raster acceleration motion. Fill paths remain. Colors are planned toolpaths, not observed burn quality.

• material-test-finished.lzrproj

  Saved demonstration setup, not a completed physical result.

• material-test-practice-context.lzrproj

  Project context for the recipe; not the generated test grid.

• material-test-practice.lzrproj

  Independent starter for this lesson.

• material-test-start.lzrproj

  Follow the demonstrated setup.

• material-test-demo-recipe.json

  Editable recipe with its own generator settings.

• material-test-practice-answer.json

  Editable recipe with its own generator settings.

• material-test-practice-recipe.json

  Editable recipe with its own generator settings.

• practice-preview.png

  Existing corrected native Preview screenshot for comparison.

For a later physical test, choose ranges appropriate to your machine/material. Check stock, focus, ventilation, eye protection and clearance. Set Finish position to Don't move, frame and wait for Idle before Start. Stay with the laser.

Matches the corrected 0.2.38 material-test demonstration. Preview colors show planned paths, not burn quality.