Inconsistent Graph Vertices error when combining

[Anonymous]

I am getting the error "inconsistent graph vertices" when trying to combine two bodies. I have essentially a shell of a complex shape that I want to partially fill in. I turned the used the offset tool to create copies of the inside faces of the shell and then used some patches to make it water tight. Then I stitched it together. However, I can't combine that inside with the shell that surrounds it. 

Any ideas what is going on?

[kate.raskauskas]

Hi @Anonymous,

(That's a really cool model!)

This is usually caused by edges/sides not quite lining up correctly, and can happen sometimes with stitched bodies. I'd recommend unstitiching both bodies and then trying to stitch them together all at once rather than stitching two bodies and then combining them. Please let me know how that works for you!

[Anonymous]

Thanks for the suggestion. I unstitched both bodies and then stitched them together in one operation. There seems to be a tiny amount of mismatch something like 0.0001 mm in two places but the operation succeeded. However, it didn't turn into a solid body. When I tried to stitch it again fusion says there are 5 free edges but they are so small I can't even see them, never mind figure out how to get rid of them.

[kate.raskauskas]

I would try increasing the tolerances - it looks like the stitch tolerance is set to 1mm, and some of your skinniest faces are still around 2 or 3mm wide. Does setting it to 3mm eliminate those free edges?

[Anonymous]

At 10mm tolerance there still seems to be on free edge. But again, its too small to even see. After doing some research it looks the correct way to do this would be to use boundary fill. It might be easiest to try again using that.

[steven_zhuQDRBU]

No stitch works you just need to make sure you select the option to find the edges in the window. make sure none of the surface bodies extend past the other surfaces that it is intersecting with. If it does, use the trim tool to delete the extended surface or use the split body/split face to split up the extended section of the surface body

[steven_zhuQDRBU]

also boundary fill does not have a tolerance so it would be harder to get working if there are gaps between the edges