CNC stands for Computer Numerical Control. This means that you will be able to use your RC milling machine to cut out parts from a CAD file. These files are usually created by 3D modelling software. For example if you have a model of an engine block that you want cut out from steel, then this could be created in CAD before being exported into the software as a .STL file
CNC milling machines have many advantages over hand tools. They are faster and more precise, which means that you can make better quality parts at a much faster rate than by hand tools. This is especially important when working with large amounts of metal such as car bodies or aircraft parts
You can also use CNC milling machines to create complex shapes such as those required by racing car manufacturers. For example if you wanted to make your own Formula 1 car then this would require lots of different components such as front wings, wheel hubs and suspension arms etc# This would all be made from different types of metal then joined together using fasteners such as screws or rivets etc#
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