Boolean operation results in non-manifold body

Nimaye_Garodia

Hi! I was trying to combine the 3 parts I have on this fairly simple design: https://cad.onshape.com/documents/1b3d89538a575a3779d0a2f9/w/8a314b8a924596e0e9200adb/e/8cf758b00f1ce1a39a4bf42e?renderMode=0&uiState=660e19e460e250121b92aa88. However, it gives me the error message as stated above. How could I fix this?

David_YL_Nguyen

Hey @Nimaye_Garodia,

This gives you an error because the result is non-manifold geometry (you can search the forum if you want to understand better what that is).
You don't need to do a boolean operation to combine this, you also don't need to extrude 3 bodies. You can just use one extrude feature and select all the sketch entities that you wanted to create a single combined body.

Hope this helps. 

Cheers

STEG

There is a problem with your sketch where you can see below. Looks like there are 2 arcs at this place with different radiuses and it creates an empty spaces between Part 1 and Part 2 thus creating a new part. I found it when I saw your Extrude2 is in Add mode but creates a new part.

ryan_brunson

I had the same problem and what I found is this happens when two parts you're using to extrude with overlap, this error comes up. If you want two put two circles in a square, the circles can't overlap or at least it can't on my Onshape.