Mill X axis mirroring not functioning

Hey Scott, watched your video — the flip is actually working. What you're seeing is the WCS origin (the red/blue triad) jumping to the opposite corner of the stock when you check Flip X. That's expected: flipping X mirrors the setup about the origin, and the origin moves with it. Since the part and the origin move together, it looks like nothing happened unless you spot the triad — easy to miss.

The fix is just to set the origin back to the corner you were on after flipping, and everything will land where you expect.

That said, this is fair feedback — if the triad jump isn't obvious, the flip might as well not have happened. I'll look at making the origin change more prominent when mirroring so the next person doesn't have to squint at the corner.

Let me know if resetting the origin gets you sorted.