Rich / Bud,
I double checked. Yes, I'm using the May 28 LT.
The Z-offset is at 0.1. I don't remember if I put that in, but if I did it was a long time ago. I haven't been doing anything to it for the last two weeks at least. I haven't touched either the Z-offset pointer or stock location pointer on the ruler. That's why it's a mystery to me, that the profile moves on the stock even though AutoCAD always shows the profile at the UCS origin. This is not a showstopper. I can work around it, now that I'm aware of it
My showstopper is: I apparently have some hardware problems after all. As I am cutting the profile, Z-axis stepper acts like it is briefly sticking or something, i.e., getting slightly offset. I don't think the problem is mechanical. I cut the Z-axis speed and acceleration in half and I'm still seeing the same problem. I am suspicious of my Dell laptop. I'm going to switch to a different platform, running a fresh install of Win2K, my favorite Windows version.
I'll be back after I get a handle on my hardware problems.
I must say, it is gratifying and reassuring to get the level of attention you guys are giving. I saw this forum and this process before I chose Mach3, and this was a major factor in my decision to go with Mach3 instead of the alternatives.
Thanks!
Dave