While laser cutters are very versatile when it comes to 2nd geometries, 3D printers build up 3D geometries layer by layer to make intricate models, prototypes, art, and even more. Mortise and tenon joints are very similar to finger joints, other than the "fingers" on a person piece of material https://claytonwchlp.blogspothub.com/36479178/5-simple-techniques-for-used-cnc-machining-centers