Mate Problem/Challange

Hi,

I am having a problem mating two components...what i am trying to acheive is to pattern a part along a curved cylinder whilst maintaining its position perpendicular to the curve.

No matter what mate combination i use i cannot acheive this!

I have attached the assembly and parts (badly constructed), if anyone could have a try for me that would be great!

Thanks

James

SolidworksAssemblies