A rose engine lathe is a machine that is used to make designs on round objects like metal, glass or wood. It has a spindle that turns the object and a cutting tool that carves small lines or patterns into the surface.
Think of it like drawing with a pencil on paper. Instead of using a pencil, a rose engine lathe uses a cutting tool to make small marks on a round object. These marks can be made in different shapes and sizes using different attachments on the lathe.
One of the cool things about a rose engine lathe is that it can make very intricate designs that are difficult to create by hand. It can be programmed to make repeating patterns or even create 3D designs.
Overall, a rose engine lathe is a tool that uses a spinning object and a cutting tool to make fancy designs that are hard to make by hand.