File edit help needed

[MikeG]

@BOX5 -I had a similar problem quite a long time ago and @WillAdams solved it for me in this post:

Joining Offset Shapes

For context, I thought it would be useful to show the problem piece and completed piece. These are brass medallions provided by @BoscoBob that are .040 thick. Spent some time trying to flatten them, and they’re close, within .001, but as we know in machining, that’s what it’s all about! The missing .001: [Missing] And complete with a bit of cleaning left to do: [Complete]