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Old 09-15-2015, 09:33 PM
crystallographic crystallographic is offline
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Your long oval is correct.
Wheel the two long sections edge-in.
Then the two shorts, but they go further in. Edge - in.

So your stretch is in a taper, thinnest at the edge tapering to zero near the oval.
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Last edited by crystallographic; 09-15-2015 at 10:02 PM.
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