Background
CNC milling is a specific form of computer numerical controlled (CNC) machining. Milling itself is a machining process similar to both drilling and cutting, and able to achieve many of the operations performed by cutting and drilling machines. Like drilling, milling uses a rotating cylindrical cutting tool. However, the cutter in a milling machine is able to move along multiple axes, and can create a variety of shapes, slots and holes. In addition, the work-piece is often moved across the milling tool in different directions, unlike the single axis motion of a drill.
“More about CNC Milling.” ThomasNet® - Product Sourcing and Supplier Discovery Platform, www.thomasnet.com/about/cnc-milling-51276103.html.
This video shows a G-code based CNC router. Our project will be similar.
A mortise (or mortice) and tenon joint is a type of joint that connects two pieces of wood or other material. Woodworkers around the world have used it for thousands of years to join pieces of wood, mainly when the adjoining pieces connect at an angle of 90°. In its basic form, it is both simple and strong. There are many variations of this type of joint, but the basic mortise and tenon comprises two components: the mortise hole and the tenon tongue. The tenon, formed on the end of a member generally referred to as a rail, fits into a square or rectangular hole cut into the corresponding member. The tenon is cut to fit the mortise hole exactly and usually has shoulders that seat when the joint fully enters the mortise hole. The joint may be glued, pinned, or wedged to lock it in place.
“Mortise and Tenon.” Wikipedia, Wikimedia Foundation, 22 Oct. 2018, https://en.wikipedia.org/wiki/Mortise_and_tenon
