Defocus Grid Test - Defocussing Engrave Test - Plywood Basswood Birch

Sand with 120 + 180 grit to prep your material

Add your material to the laser bed

Use the material map or camera to show the software where your material is

Centre the grid test, then ensure your exhaust is vented outside

Only engrave one star at a time, as you need to manually adjust the focus for each one. Start with the first star, and add or subtract the mm's depending on your desired effect. We've gone into detail within the file about how each method impacts your engravings.

Once ready, hit start in the software, then hit the button on the laser to okay the job

After completing the first star, turn it off so it won't engrave again, and turn on the next. Change the defocus amount to the value the chart says, then engrave.

Repeat until all stars are engraved one by one, with the correct values changed for each defocus test

Once finished, remove your material, and sand if needed to remove char