Modelling perforated brake rotors

I need some help on modelling brake rotors, more specifically the perforations. Any help would be greatly appreciated.

I think curves are best. There is a German tut for it (pictures doesn’t need translation and the first 5 pages are about curves). It is basically only about circle layout.

Or this one?

There is a search function, do you know?

Thanks, I was looking for that exact tut. but wasn’t looking in the right place.
Much appreciated.

How about modeling a slice of the disk then using an array modifier ?


One of the stickies in Modeling is called Selected Modeling Threads. Check it out. It’s got links to threads where this exact same question has come up before.