Re: How to get a path from a circle?
Nice pictures. If you create a circle then switch the surface type to polyline, you'll see a gap appear. you can then use Surface->change-vertex-order to move the "gap".
Alternatively - draw a line in a roughly circular shape and then use Vertex->spherize to push the vertices into a circle.
The order of selection for extrude-along-path matters. Select the surface you want to extrude first, then the path, then select the function.
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