CNC wood routers use spindle with bits that move in three directions. Different bits are used for different cuts, including elongated knife-like heads, spiral rounded tips, and straight-toothed bits. These routers are useful for cutting wood and some softer materials.
Computer numerically controlled (CNC) wood routers cut wood with a spindle that holds the CNC router bits in three different directions: along an X-axis, Y-axis, and Z-axis. CNC routers rotate at a high speed, between 8,000 and 30,000 revolutions per minute (RPM), for cutting wood and some types of softer materials. The types of bits available vary in shape depending on the type of cut to be made, but include elongated bits with knife-like heads; spiral, rounded tips; and straight-toothed bits.
One of the types of CNC cutters used by a CNC milling machine includes an elongated body part, a workpiece on one end that mounts to the machine, and a shaped knife head on the opposite end. The end of the knife head has pairs of recesses in the point which are formed to be interchangeable and longitudinally adaptable. This compensates for the wear of the knife socket and the loss of diametrical dimension due to the regrinding of the tip knife sockets. These types of CNC routers are useful because they are semi-universal for wood cutting machines.
Another type of CNC router is spiral, rounded and used for side cutting of wooden products. The shank parts of these CNC milling cutters are suitable for gripping inside a milling machine. The construction of this drill includes two helical and parabolically ground flutes with no plane adjacent to the cutting edge. The grooves of the bit rotate clockwise so that the cut pieces of wood fall under it. This is useful if a user wants to use a part that eliminates cutting debris.
One of the other types of CNC router bits is one that uses a straight tooth configuration in the bit part. It is used in the process of chamfering and finishing the panel side or butt end. This type of CNC router is standard and the shape is used for the sides of wooden boards, but so-called burrs are likely to form on the wood. The straight cutting edges of these types of CNC milling cutters are paired and form an edge in opposite directions based on the rotation of the axis of the drill.
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