Okay, this is different from my usual stoopid questions, as I *have* already found a solution. But I'm wondering if there's a more elegant approach.

Assume one has a strap 2"x3" in size, and wishes to add a 1/2" hole along the centerline of the strap.
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The only thing is, I'm not sure if two inches is the final width that the strap is going to be. If I define the centerpoint of the hole as being 1 inch from one edge, if I change the width, the hole will no longer be along the centerline.

The figure shows my solution...I add a centerline to the strap using a construction line locked to the midpoints of the two end lines, then define the centerpoint of the hole as being coincident to this line.

Just seems to me that this should be possible without the construction line...like clicking the center point of the hole and the two adjacent sides of the strap, and defining a Relation. Yet can't quite make one work.

Is there a better way?

Ron Wanttaja