Boolean modifer "Failed to set value" (Solved)

(Solved = issue was that the cylinder was part of the other mesh, i had created during edit mode while i had it selected)

First time trying to use the Boolean modifier and i got this issue "Failed to set Vaule"

i was following this tutorial by PIXXO 3D

https://www.youtube.com/watch?v=_Esv8E7A4T4 

any ideas on what to do? I am trying to use the cylinder to take a piece out of my mesh.

Oh and if anyone knows a cg cookie video that explains and used Boolean that be great as well.

  • Jonathan Lampel replied

    Hey legacyofwax , the boolean modifier works by intersecting two objects. You're running into an issue because both of your pieces are part of one object. To fix this, select the cylinder, use the hotkey P to separate by selection, and then use that new object in the boolean modifier. 

    Hope that helps!

    Edit: just saw that you beat me to it. Nice work :) 

  • legacyofwax replied

    thanks @jlampel

    I was walking around my work between students then had that moment of "I know what i did wrong"