Hi, Peer

Thank you. Your answer is helpful.

Single circle sweep work fine. I will also try about the curved sweep.

> In your screenshot it looks like the bent cylinder has a constant diameter.
Yes. same diameter. :)

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marzRX

Thank you ! I can now make it without artifacts.

I have had Boolean-Union failures for cylinders and spheres, and Boolean-Diff failed even if sphere and cylinder were combined.
All of these problems have been eliminated and modeling can now be done in a short time. ;)

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marzRX