I am using Fusion 360. A couple of files ago I found when I went to cut a part out, with the machine set to zero on the WCS, the part was in the incorrect place. I thought it was due to some noise from a component inside my control box messing with the coordinates of my machine.

It happened again this evening. A couple of restarts and the part came right. I just loaded it into a version of Mach 3 I have here on this PC, its done exactly the same thing. The part zero should be at the bottom LH corner of the part. I have attached a picture and also the code. -

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I most certainly set the wcs in Fusion. Thats a biggy for me or Fusion has a tanty and wont work. Any ideas? Its weird. Infact I ran this file with the Z zero 50mm up just to see what would happen but it went somewhere else on the table. Any advise appreciated in advance. B