This may lead to lessened power loss in the delivery process and a lot more capacity for each watt than traveling optics machines. Mortise and tenon joints are very similar to finger joints, except the "fingers" on a single piece of material stick via holes in another piece of material. https://cnc-machinery51470.mybjjblog.com/not-known-facts-about-cnc-laser-for-sheet-metal-49702402