The orientation of the axis of rotation determines how easy it is to machine certain features (i.e. The rotation may be accomplished by moving the tool or the workpiece which is being machined, and the axis of rotation may be parallel to or perpendicular to the tool surface. This extra movement is rotation along the X-axis, which forms a fourth plane – the A-axis. However, as the name indicates, 4-axis machining adds an axis of rotation to the standard X, Y, and Z planar movement. The workpiece is in a stationary position, and the cutting tool works on it to remove material and mold the desired part. Reduction in available complexity of machined surfaces due to limited access of tooling to the part (reduced freedom of movement)Ī 4-axis CNC machine functions much like its 3-axis counterpart.Lessened ability to perform intricate machining.That said, 3-axis machining possesses the following limitations: Additionally, you can also use it for cutting sharp edges, boring, milling slots, tapping, and drilling holes. As such, it is one of the most preferred techniques for creating mechanical parts for automation. A standard 3-axis CNC milling machine has a table that moves the part to provide one or two planes of movement, and a tool that provides the other one or two planes of movement.ģ-axis machines are ideal for simple tasks that don’t require intricate detailing or depth. The X-axis (vertical axis) is left to right along the lathe table, the Y-axis (horizontal axis) is from front to back of the table, and the spindle that drops from the top marks the Z-axis (depth). With a 3-axis CNC machine, the workpiece is stationary while the cutting tool moves across the X-, Y-, and Z-axes. 3-axis CNC machining evolved from rotary filing (think dental drill □).
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