Quote Originally Posted by LambdaFF View Post
Man you're better off designing it yourself. Seriously.
Put it on a sheet of paper with 5mm squares, trace the outline and measure a dozen points. These will serve you as a reference for a spline. The inside groove is probably just as simple to design.
I'm guessing it won't take more than 30 minutes.
IME, your estimate is wildly over-optimistic. I've already spent more than 30 min and I have the rough shape from the Makerbot digitizer.

I'm using Sketchup, which does not seem to have a spline curve tool.

Doesn't anyone here know of a service which can scan this?