Putting center points in bend radius of tube.

I am having trouble putting the center points in the bend radiuus of tube models to obtain the x,y,z co-ordinates for the CNC bender. I have been inserting a plane in order to sketch the fillet onto to find the center but there has got to be an easier method to getting the x,y,z co-ordiantes.

Your help is greatly appreciated.

SolidworksDrawings And Detailing