Struggling to make a solid after boolean union

I have build this “lid” - I was not able to join the open polysurface, but I was able to “Union” the two objects (eye hook > lid structure)

I need to turn this into a solid for 3D printing. Can you help?

Create Solid Failure.3dm (696.3 KB)

Hi @Roy6

Impossible to say where you went wrong, but there are a few minor mistakes. The trim curve for the bottom face of the upper part is bad, giving you naked edges. Untrim and re-trim to fix it. Also there are a lot of really skinny surfaces/slivers all over the model - see screen grab. Be careful of precision when building you curves and geometry!


And then there’s an inside corner missing, which is easily mirrored from the other side. The existing corner has a small triangular overlap, which is easily trimmed away with the edge of the underlying surface. Here’s a closed solid for you :slight_smile:
Create Solid_JN.3dm (1.3 MB)
HTH, Jakob

Hi Jakob,

Thanks for replying. I actually managed to fix the issue thank you!

Well done :slight_smile: