It is typically a rotary table on top of the 4th axis rotary table, otherwise known as a trunnion. 5th axis adds one more dimension than the 4th axis. You will most often need a CAM program equipped with 4th axis capabilities to create a tool path for any part you plan on cutting using a rotary table. The 4th axis can be used for full contouring with other axes, indexing, or flipping a part over. 4th Axis milling usually describes situations where a rotary table is involved in the cutting process in addition to the X, Y and Z axes. You will most often need a full CAM program to create g-code files capable of performing 3D contouring.Ĭustomers also have the option of using more than three axes in 3D part creation. ![]() 3D contouring can then be accomplished by creating curves that use all three axes at once, like in a helical cut. Working in three dimensions (3D) means that you have the ability to control at least three axes simultaneously. ![]() Most simple CAM programs deal with 2.5D parts. The Z axis then retracts so the X and Y axes can move to the start point of the next feature, which may be cut at a different Z depth than the last feature. During a 2 ½ D cutting process, the Z axis positions itself to a depth where the X and Y axes interpolate to cut a feature. Working in two and a half dimensions (2.5D) means you are cutting a part that has multiple flat features at varying depths. ![]() The FlashCut CNC software’s DXF Import feature automates the creation of a tool path from a 2D DXF file. This is common for laser, hot-wire, water jet, and plasma cutting, along with engraving. Working in two dimensions (2D) means that you are cutting out a part with features that are all at the same depth.
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