In my file sketch (3DSketch1) for side blocks to have holes on the part is created by using Split Line. But in the video it seems created without using Split Line. How is it possible?
Time 22.19
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His basket was created differently than yours but he sketched his core profile on the face of the part. Open your loft feature and edit it. Uncheck the box that says Merge Tangent Faces and you'll see the faces on the outside of your part.
Now I can select the side of the basket and sketch on it.