I want the parts with definite faces to look at one point.
Here is my solution!
First: for part look to point
then rotate it a bit.
-- back face from 0,0,0 to 0,10,0
local backTo= CFrame.lookAt(Vector3.new(0,0,0),Vector3.new(0,10,0))* CFrame.Angles(0,math.pi,0)
Is there a faster way?