Milling is the machining of metals, plastics, or wood. In contrast to turning, the cutting movement in milling occurs through the rotation of the cutting tool while the workpiece is firmly clamped in the machine table. To give the workpiece the desired shape, a feed movement is necessary, which, depending on the milling machine, takes place either by moving the machine table or by moving the milling tool around the workpiece. A fundamental distinction is made between conventional milling and CNC milling.

In conventional milling, also known as manually or mechanically controlled milling, cranks or simple mechanical devices regulate the feed rates. To read off the moved dimensions, scales with verniers are attached to the cranks, whereby today, almost all milling machines in productive use are equipped with optoelectronic position measuring systems. With conventional milling, the tools are changed by hand.

CNC milling makes it possible to program machines with up to five axes via one control. The axes are controlled individually or simultaneously with feeds, and the traverse paths are measured using glass measuring strips. The tools are housed in an interchangeable magazine called up automatically when necessary. A tool changer then exchanges the instruments. Due to the different axes, the milling cutter can be positioned and controlled at any angle to the workpiece so that 3D contours can also be milled using CNC technology. A milling machine is characterized by the coordinates of the work area, the drive power, and the available speed ranges.

CNC Milling Machine Instruction

Even for an experienced and well-versed specialist, it should be a great challenge to build a CNC milling machine yourself before selling cnc machines (จำหน่าย เครื่อง cnc which is the term in Thai). The self-construction of a CNC milling machine requires extensive specialist knowledge and is also both very time-consuming and very cost-intensive. An alternative to completely self-construction is to convert an existing milling machine to CNC. However, this is also a challenging project that requires specialist knowledge, and, in the end, it is questionable whether the effort is worthwhile. Therefore, the following assembly instructions only explain in general which components the hobbyist needs and which points he has to pay attention to if he wants to build a CNC milling machine himself from an existing milling machine.