How to make aligned holes in a cone

Hi,

I want to make a 3d printed lamp.
I have to put a lot of holes on a solid cone (see picture) like a Drilled sheet steel What’s the best way? thanks

Probably Grasshopper with Paneling Tools

Unfortunately, they aren’t possible in Mac Rhino.
That’s a Windows Rhino thing

Ok, thank you. I have to install bootcamp, buy windows 8, buy Rhino3d.
My pockets will be very empty!

Well, you can get away without buying Rhino for Windows for 90 days - use the evaluation version…

–Mitch

Bootcamp Assistant is a utility that is included in OSX.
If you have a 13" Mac or one that only has the embedded Intel HD graphics, then it will not work well for Windows OpenGL.
http://www.rhino3d.com/new/admin#system

Check the commands CreateUVCrv and ApplyCrv.
You’ll have deformations but it might be good for a lamp.