Boolean Union - how to remove "seam edge"?

Hey guys, I’m new to Rhino and I keep getting these “seam lines” after using boolean union. I’ve tried mergecoplanar faces and mergeallcoplanarfaces. Any ideas how I can fix this?
Screenshot 2024-10-03 150603

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which lines? all of them?

please post your file include all objects you used for the boolean operation.
and the result you got.
my guess: you used the wrong strategy - but this is hard to prove from a screenshot.

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You can use this amazing script on Food4Rhino

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Not knowing how you constructed this, I’m tempted to suggest that ‘Untrim’ might be a path toward your objective.

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let s wait for the file to be uploaded…

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Here’s the file I’m working on. Trying to get rid of the lines around the bottom where I made the boolean union

(attachments)

Table Base Concept V-4.3dm (2.04 MB)

Also - how to booleanunion the red polysurfaces as that is the part I’m trying to restore

explode this portion, delete all the geometry you wanted to fix it with and use Untrim.


in case you want to loft the bottom to close it up use MergeAllEdges on both surfaces first.

subselect the top surface
(ctrl + shift + click)
_extrudeSrf
and redraw the tube ?
there is also a
_tube command (to the left)
you can use it combined with _centerSnap

am i missing something ?

Yes I was just curious about if there is a way to repair the existing shape

Thanks

Did you check the script posted above?