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General Mach Discussion / Mach3 turn post processor for Fusion 360 issue

« on: June 17, 2017, 09:22:08 PM »

I'm trying to make a pulley for the Taig spindle to match the Consew motor. I am using Fusion 360 to model and generate the Gcode. I am doing the work on my CNC knee mill running Mach3. I loaded Mach3 turn and am using the X and Z with the lathe tool sticking out the side of the vise. Had to reverse the axis direction on the Z to emulate a lathe. The problem comes when I post to the Mach 3 turn post processor. No matter if I pick radius or diameter, the x moves are off the part. I am turning a stub arbor .625 diameter to mount the pulley blank. Stock is .75 diameter. The final X cut should be at .3125 because Z zero is the centerline of the part. Minimum X in the code is .625 regardless of whether I choose radius or diameter. I tried changing Mach to diameter mode and it made it worse. Is there any way to force the post into radius mode? I am also posting this on the Fusion forum.