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No, there's no way to do what you ask. The way I'd do it would be to copy the body and then trim both the original and the copy to leave opposite pieces.
The Split feature does what you ask for solids, but not for surfaces.
Too bad the "Cut with Suface" command doesn't work for surface bodies..
I've run into this situation before as well.
What i've done in past is use thicken for my knitted surf's..
To make it a solid temporarily..
Then make a planar surface where i want the cut..
Then use Cut with surface to cut it..
Then delete or supress the cutting surface.
And delete the extra surfaces that were created from the thicken..
That way i'm back to the same Surface body, only now it's split..
PITA, but it's worked for me..
I'm with ya Matt. I would love to see a "Split Surface" command or change the Split command to work on surfaces.
The workaround you suggested is the same approach I have taken everytime I have had to do this.
Good point TH, I have done that as well as what Matt and Ricky have mentioned, both are extra work and but I normally use your option as it seems easier
i've been contemplating this topic ever since it was posted. and finally today i decided to see if i could find a way to do it other than the ones suggested and i did. however, it's a little strange. i used some mold tools which i remembered would split a body, solid or not, and leave both halves. the strange thing is that when you do split the suface body one half is in the Surface Bodies folder and the other half is..... not. the body is still in the model and is a surface body, just a little wonky to select.
it's not exactly a solution but it "works".
splitting surface bodies.zip 66.1 KB
That's really just the same thing that someone else said, with knitting faces to make a new body.
We just need to fill out enhancement requests to get the Split feature to work on surfaces as well as solids.