Cold,

Here's something I did to get what your talking about.

I extruded my tread pattern, then Bool diff with a profile curve of tire to get the curve suface.



Then I select that suface and extrude it to tread height + sink some into tire before array for later bool.





I did the same cut for the "Edge tread" before array to get the blend from tread to sidewall.

Yes Burr,

I did try that, but i really prefer doing the project, trim from the tire itself.

Still doing some test but i think i getting the hang of things, my start to go for the RIM then the break.




Another test with thread in Carrara

Thats a nice result, I must try it with the project curves as you have!

Burr

Another one, projection work better.

Result is much cleaner.



i think i will attack the text part of the wheel and the rim now.

Started on the RIM