I am creating an animation which involves a blade with on edge touching a cylinder. I want the blade to be 30deg off of the tangent line of the point it makes contact to the cylinder. I am trying to figure out a way to measure this angle. I have tried drawing a square from the geometry tab and using the angle measurement. I cant be positive if me square placement on the cylinder is exactly tangent though. I apologize for the terrible picture but I think it helps get my point across. Thoughts?