Hey guys, first post on the forums. I am going to school for ME Tech and Im working on a project. I need some help figuring out the dimensions of a particular part. picture a plate of aluminum, 12 inch in diameter, 1 inch thick. now the plate spins on its center point and on the outer rim is 2 bearings (one on each side of the plate) , ok simple enough, the plate is 1inch think, the bearings are 1 inch apart.. Now the tricky part, is that the plate isn't flat, its shaped like a sin-wave so the tangent contact point of the rollers is gonna change throughout a revolution. at the 90 degree and 270 degree points (high and low) the plate would be one inch thick as its tangent points are where the rollers are 1 inch apart, but the more rotation, the more the tangent points change, until they reverse and go back the other way... basically what im trying to get, is a way to plot that change so that i can put the radius into the part in solidworks. im sure it will be a compound radius, but im hoping not. lol so.. anyone that has a few to help me out?? and if this isnt clear, ill try to draw a picture or something. Thanks!