This was entirely designed in v4 Jan 22 build. This appears to be the second time I've done this so there is a good chance I'm doing something very wrong. I will try and recreate the problem and see if I can tell what steps I'm taking that might be incorrect.

Hi Charlie, well I think it's pretty likely that it's a bug. It could be possible that something in particular about how you're doing things makes it more likely to run into the bug though.

If you can send me the model before cutting the hole that was messed up that could help to track it down.

- Michael

I am guessing this is not helpful but I pulled all the components from various saves and dumped them into one file. There are some steps where I don't have the components because I saved over with another version.



From left to right.
1. Copied edges from another object
2. (missing) Extruded along angle path
3. (missing) boolean cut to get wedge shape
4. Using edges from holes boolean (missing)
5. Created larger tubes for partial boolean
6. Decided small holes were not big enough and made new ones
7. Boolean edges (missing)
8. Boolean box off back of model (missing)
9. Added flared edges and back slant boolean (missing)
10. Final model with bad geometry

I think it happens when I do the second boolean diff with the slightly larger holes (step 6). I've tried redoing the boolean a few ways and can't get it to break again.

Thanks Charlie, I will try it over here too.

- Michael