Boolean operations help

Everytime I try to do a boolean operation, everything gets messed up. Example: I want to put a several holes in something, It takes out parts that I wanted to stay. I tried rotating, I tried moving, and it still messes up… And i’m not using the 4.0 alpha version… I’m using the stable one.

Boolean is not very good in 2.37a. Try the beta, I believe it has been revisited.

Or try the script here:

https://blenderartists.org/forum/viewtopic.php?t=29200

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Ok, thanks… but why are they so messed up in 2.37?

They has been messed up for quite a while now.