Mesh Boolean Help

[MinneapolisJoe]

I’m unable to subtract one part from another. I have one larger piece that I merged 3 smaller pieces to. When I try to subtract the smaller pieces, they are just removed and the larger piece stays in tact. I have tried multiple times, and it worked once even though I didn’t do anything different. I cannot recreate it.

I don’t want to use a negative part because I’d like to place another part in it’s place.

I found a post on Reddit post describing the same issue, showing a video of the issues, but there was no resolution.

This should be a simple process, so I’m sure I’m just missing something basic. Any help would be greatly appreciated

[Olias]

Welcome to the community.

Unfortunately, there’s too little information in your post to diagnose what is going on. As an example, did you make this an assembly first, what was the model that you used to begin with and so on? Can you show a screengrab of the process you used? Also, what is this object? What is the meaning behind the different colors? What part of the model did you try to merge? What process did you use, difference? Union? etc…

Rather than go back and forth with countless questions can you first upload an example of the failure.