Even if you select the option so that it sweeps to the left, as soon as you choose the guide curves, it will sweep to the right
UPDATE: (with second part file)
And here is another weird thing.
Hi Shawn Chi
I don't know why, but maybe you want to try it.
that's a one good way to get around it. With another sweep, I can create the portion on the right. But that's not really what I'm asking though. What I really want to know is why SW defaults to the right portion instead of the left portion. I also updated the question. If you know why, please reply. Thanks.
Is this what you want?
well ultimately yes. But did you do it with just one sweep or two?
It is recommended:
If profile shape changes throughout the process – Loft/Boundary.
If profile shape remains same throughout the process – Sweep.
That's right. The sketch profile should remain the same. That's why I chose Swept Boss instead of Loft.
This is with Swept Boss:
And this is with Loft:
File is attached. Here shape of the sketch profile is not remaining same. It starts at star point and at the middle it becomes square finally it ends up in star point. In your case it twists I do not know why.
I would do it this way:
1. Boss Extrude
2. Cut Extrude
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