Laser engraving has become an accessible way to personalize everything from wooden signs to metal jewelry. Before you fire up ...

The simple graphics were actually pretty hard to create, and with that in mind, [standupmaths] decided to take a close look at the vector display of Asteroids and try to recreate it using a laser.

The TiO 2 is the important part; it changes color when heated by the laser, forming a deep black line that adheres ... and blast away. Vector files work better than raster files, and you’ll ...