A guilloché pattern is a decorative technique that involves mechanically engraving a repetitive pattern into a material. The space can then be used to add decorations or ornaments. To a certain generation they appear like drawings from a spirograph.

Ed Nisley has been cutting Guilloché patterns in materials and has looked to do it on compact disks.

So the overall workflow involves generating an SVG image, importing it into LightBurn with those layers set up with the appropriate cut parameters, using the Three-Point Circle Center Finder tool to align the pattern with the CD, then Fire The Laser. Alignment stops on the laser platform eliminate the need to realign every pattern, so it boils down to running the generator script enough times, importing a batch of patterns, then snapping each one into place and cutting it.

They’re kinda pretty, in the usual techie way.

Read more in the post here. The GCMC source code and Bash driver script as a GitHub Gist.