If you're looking for a fun project to do with your CNC, aluminum is one of the best materials you can use. It's lightweight and easy to cut, so it doesn't take much effort to engrave on it. With that said, there are some things you need to keep in mind before attempting this task
There are several ways you can go about carving out the design you want in your aluminum. One option is to use a laser cutter and engrave directly into the metal with your CNC router. This is definitely an option, but if you want a smooth finish on your piece, it might not be ideal because there will be some spots where the laser etching isn't as smooth as others.
aluminum engraving cnc