so the problem is on my machine when I make an NC program the example toolpath is correct according to the shape and line. but when it comes to reality on the machine the starting point is different
Is your machine using our Kinetic Control software? If it is, you will not need to know your B-table offset but you will need to set your work offsets correctly.
If you are setting work offsets by touching your tool off to stock material, make sure you account for the tool’s radius. What you are seeing could be the result of not accounting for the tool’s radius when setting the Y axis work offset.
i use fusion 360 and then after try those setting on the document. when i setting the Y work offset the distance is getting farther where the body is farther down after I set the Y work Offset
You are using our legacy software so you will not be able to set and properly use Work Offsets unless your machine has software version 4.8.1. This can be checked by going to Conf. > Version and then scrolling in the software version box until you find the version that has a grey bar. To update you can follow these directions.
Even if you have your machine up to date, you will still only be able to use work offsets if you are using 3+2 machining and have Rotated Work Offsets enabled in your post processor.
You will not be able to use work offsets if any of your toolpaths are multi-axis (swarf, rotary, etc.) since those require TCPC, which is only available on Kinetic Control (our new control software).
However, none of this applies if your part is programmed around the machine’s center of rotation (the B-table offset). This would mean that, in your CAM software, your Setup’s WCS origin is set to the B-table offset sketch that is part of the vise model we provide. If that is the case then you need to get rid of all work offsets by clicking on the “G54” icon in the work offsets section and selecting “Remove all offsets”.
Feel free to upload your Fusion 360 file and we can take a closer look as well.