![]() This solves the issue of a moving active work offset, but creates a new problem now the distance from the part location to the center-of-rotation becomes very important. ![]() Without DWO/TCPC, all programs must be programmed from this location. The rotary center-of-rotation is a position that does not move as one or both rotary axes rotate. The rotary center-of-rotation is the only stationary position in 4- or 5-axis rotary setups. The problem with using this location for 4-axis or 5-axis programs is that the active work offset moves when the rotary rotates. A typical 3-axis job would place this work offset on the top of the part. For a program to function properly, all axis movements must be programmed from a stationary point. When a job is set up, an Active Work Offset is created. If the rotary was rotated so the tilt axis was parallel to the Y-axis, then the B and C rotary axes would have to be enabled. For example, a TR160Y with the tilt axis parallel to the X-axis would enable the A and C rotary axes. The rotary axes must also agree with the rotary axis convention. For DWO/TCPC to work properly, it is very important that the rotary configuration match the true rotary setup. The Next Generation Control makes it very easy to set up your specific rotary in the control. Without DWO/TCPC, it must be stored within the CAM system with DWO/TCPC, it is stored within the control. The only difference between machining with or without DWO/TCPC is where this information is stored. ![]() When machining 4- or 5-axis, the machine rotary zero point or A-axis center of rotation (also known as rotary center-of-rotation), need to be known. The differences between machining with or without DWO/TCPC are subtle, but the effects in terms of a simple setup are dramatic. ![]()
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