Boolean difference will not select mesh


This is my first post and I am a bit of a novice so apologies in advance.

I have what I thought would be a very simple operation but I am having difficulties, I have two meshes that I have imported, one head and the hair. I would like to put a cylindrical hole through the neck all the way through the head and out of the hair. I created a cylinder and placed in the correct place, selected Boolean difference but when it tells me to selects the surface to subtract from, it wont select it!

Am I missing something very simple?

Many thanks in advance

Meshes have their own set of commands for this, use MeshBooleanDifference (check the “Mesh” menu). That being said, mesh trim/split/Boolean operations are not all that reliable in Rhino, so check your results…

HTH, --Mitch

Hi Mitch,

Thanks so much, that has been driving me mad.

You say that the Boolean mesh is not the best on Rhino, is there a better way to do it?