I can not properly cut out holes with boolean modifier. Difference or Union looks very similar. The object with which I want to cut (5 cylinders) after cutting always sticks on the shape that I want to cut (after choosing difference). Tried flipping normals and triangulation modifier on all shapes. But nothing helps! Begging for some wise words!

I should use difference, but it acts partly as union. enter image description here

  • $\begingroup$ have you given a bit of thickness to your plate? I guess it will work if you do, use the Solidify modifier, apply it, then try again boolean $\endgroup$
    – moonboots
    Apr 7, 2019 at 10:13
  • $\begingroup$ Nice, it worked! Thanks a lot, moonboots ! $\endgroup$
    – tija
    Apr 7, 2019 at 10:20

1 Answer 1


Use a Solidify modifier to give thickness to your plate, apply it, then try again. Boolean needs thickness. If you don't want to give thickness to your object, use the Knife Project tool.


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .