Rochr and all, Something to keep in mind when multireplicating: start at 0 Y 0 for the basis of the object where y is the y height. Also so you can visualize it better your camera should be in the south pointing north (ie 0 Y -100.) since in this case I wanted a spiral I offset the Z axis of the original by 20 and set the Z and X handles to zero before multireplicating. (Group 1 illustration doesn't show this because I only set the duplicate to zero before manually moving it but z position should be 0) once you're done you can group it all and save it as a created object and place it in another scene. That way the creative process doesn't get too complicated. The torus method by frndofyaweh looks like it will work well too and provide a smoother rail, but it would be harder to get to follow a complex path if you wanted the spiral to unwind or follow a path such as in MadDog's illustration. cheers, - TJ