There are plenty of other ways to generate joints from flat items, and never all are limited to laser cutters, but a lot of the techniques have in excess of from fields like woodworking and metalworking. Mortise and tenon joints are very similar to finger joints, besides the "fingers" on https://beckettxurog.estate-blog.com/36419933/the-definitive-guide-to-reliable-cnc-milling-machines