Trying to use Boolean (difference) Modifier on a ring design and its not working correctly?

Question

Okay so I followed this you tube video to make this ring and they way it is done on the video isn't working for me, I am not sure what the problem is. I have tried everything I found on the internet,! advice from author enter image description here

activating the 3D print tool addon and running the solid to check for problems, which it is saying I have some non manifold edges,! enter image description here which are there bc those sides do not have faces because I used a mirror modifier on x and y to complete my basic shape, but I don't know how that could be the problem with the boolean because that is how its done on the video and it works?? my results with boolean(difference) modifier I have done everything i can think of, even rearranging the modifiers,results from the video I have checked all the normals enter image description here I'm out of things to try, please help?

Could you upload your .blend? It's hard to say in this case what the problem is without fiddling with the file.. — gandalf3, Jul 15 '14 at 19:13
I would love to, just have no idea where to upload it on this site? Help please?lol — Wiebe Scurlock, Jul 16 '14 at 02:32
You can't currently, instead you'll have to use pasteall or something and put the link here. — gandalf3, Jul 16 '14 at 02:33
Okay here it is thank you so much for your help, I learned something new! http://www.pasteall.org/blend/30443 — Wiebe Scurlock, Jul 16 '14 at 17:41

score 1 · Answer 1 · edited Apr 13 '17 at 12:57

1

Boolean operations sometimes fail when vertices between the two objects line up exactly.
You can work around this by moving one of the objects a very small amount.

Example .blend

Also see “Cannot execute boolean operation” when subtracting several spheres and cylinders from cube

edited Apr 13 '17 at 12:57

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1

answered Jul 16 '14 at 19:27

gandalf3

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Thanks a million gandalf3, I finally got it!! Here I thought it was a setting or something...lol – Wiebe Scurlock Jul 17 '14 at 14:22

score 0 · Answer 2 · answered Aug 27 '19 at 23:38

I too am building up a ring and ran into this very problem.

Here are some things to check:

Check your mesh for doubles
- select all
- (Blender 2.8) Mesh > Clean Up > Merge By Distance
Check that your meshes are Manifold
- This one has usually been my culprit
- Go to edit mode
- Select none
- Ctrl + Alt + Shift + M
- This will highlight any non-manifold geometry
- you will then need to find a way to fix it (google is your friend)
- in my case, it was being created in previous boolean modifications

Tip: When doing boolean modifiers, I have found that the Carve setting helped create Manifold geometry. This helps if you are doing successive boolean modifications, since I've found that non-manifold geometry behaves poorly with subsequent Boolean Modifiers.

Good luck on your journey, I hope it goes well!

Trying to use Boolean (difference) Modifier on a ring design and its not working correctly?

2 Answers2

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