Boolean 2 swept rails - Jewelry

I am trying to Boolean Union 2 rails that are swept into the same ending shapes, however it is not working. To my understanding, this is because the objects are the same exact size and overlap perfectly. I have also attempted difference to the same issue. I have also flipped the objects before capping them and redoing the rails with different seam points. To fix this and to this in the future, how would I do this? Attached will be a screenshot, please let me know if the file would help as well.

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Boolean issue.3dm (983.7 KB)

Thank you, Here is the file

Try to unlearn booleans, there’s a reason for the “boo” in boolean. Simply use Rhino’s regular NURBS surface, fillet surface, and trim tools.


Boolean issue.3dm (3.5 MB)

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Thank you, I cannot open the file however because I have rhino 7. I will be taking a look asap

Best way to avoid problems with booleans is to not use them.

I trimmed the Y with a line and then joined the result and then trim and joined that to the top ring.
No_boolean.3dm (593.1 KB)

Thank you! I was attempting to trim but before it was not working for some reason. I’ve got it now. the directions were spot on. I guess I was too caught in my ways!