Excellent. Thanks guys.

Thanks, Colin.

Is there some way to get Mastercam to tell you what operation number you are currently viewing while running Verify.

Yes, Colin, I work in 3250. You were my instructor in 3 or 4 classes while you were with CimTech.

I'm using Mastercam X2 and posting to a Mazak Nexus 350 - II MY. It's a new machine and a new post processor, so we're on a learning curve, and it is also possible the post processor still has some bugs in it. If I understand most of the above posts, when you use "wear", the operator can adjust for tool size in both the "wear" and "radius" registers. A few years back I ran a 5 axis mill programmed with CATIA, and if I remember correctly there were some cutters the operator could comp on the radius and some the operator could only comp in the wear. In researching for this thread, I searched previous threads on this subject. A common reason given for using "wear" instead of "control" was to prevent the operator from accidently putting the wrong value into the "radius" register. But in light of the above, this still seems to be a possiblitly.

I’m trying to understand the use of “control”, “computer”, and “wear” as a tool path parameter. It is my understanding that “computer” programs the centerline of the cutter and the operator is unable to make adjustments affecting the size of the part. When using “control”, the operator can make adjustments by making changes in the radius register. When using “wear” the operator makes adjustments in the “wear” register. Here’s where I get confused. When using “wear”, values in the radius register are ignored. When using “control”, values in the “wear” register are ignored. Since both “wear” and “control” use G41 and G42, how does the controller know which offset to use and which one to ignore. Does Mastercam send the controller some signal, such as an M code, to tell it which register to ignore? Or am I missing something.

You can do it by selecting "create arc endpoints", then clicking on the "tangent" button on the ribbon bar. You then select the first point, then the second point, and finally select one of the lines. The sequence of which points you select makes a difference as to whether the arc is concave or convex.