I want to place a series of holes around the bottom edge of protruding features on a thermoforming tool. I have found "Curve driven feature" and have been playing with that. What I did is make a sketch of where I wanted the holes, created a new sketch and converted the first sketch into a spline and then used that spline as the curve. My issue is that the location of the final feature is not where I want it. Reading in the help file I see this:

• Transform curve. The delta X and delta Y distances from the origin of the selected curve to the seed feature are maintained for each instance.
• Offset curve. The normal distance from the origin of the selected curve to the seed feature is maintained for each instance.

In either case it looks like I need to place the feature that I want to copy at the origin of the curve. It looks like I need to know where my spline (curve) origin is? How do I find this? Is there an easier way to do what I want to do here?

By the way, my feature is a revolve meant to simulate drilling two holes. One small hole from the front of the tool and one larger hole from the back.