BOOLEAN OPERATION FAILED TO RETURN A VALID PART

dillon_catenacci

I'm trying to make a rim and when I try to use a boolean on all the parts and target them into Part 2, it doesn't let me click on 3 of the parts that I'm trying to select without giving me an error message saying "Boolean Operation failed to return a valid part." What am I doing wrong, and how do I fix this.

https://cad.onshape.com/documents/98ced53a22a208a75937169c/w/bdb811229d90eb8f587c652a/e/589423509d2a5753071245ca

Thanks in advance!

S1mon

Looks like you didn't make this public. I can't access the document.

dillon_catenacci

Can you see it now?

https://cad.onshape.com/documents/98ced53a22a208a75937169c/w/bdb811229d90eb8f587c652a/e/589423509d2a5753071245ca

S1mon

Yes. I can see it. You are essentially trying to make something where the shapes intersect at a line and you're left with something that has zero thickness. Parasolid (the underlying geometry kernel that Onshape and many other CAD tools use) doesn't support that.

If you want your wheel to be manufacturable or even 3D printed, you probably need a little more material where all the spiky shapes come together.

S1mon

Your post inspired me to create an improvement request:
https://forum.onshape.com/discussion/20585/better-error-handling-and-training-around-zero-thickness-parasolid-limits

dillon_catenacci

Awesome! Thank you so much, it worked!