What you can do is use the helix to get a curve (modify, convert, poligon edge to curve) then douplicate this down then select the two edges and do a surface loft, convert to polys then extrude out..........dave Edit: make a duplicate of the mesh then -1 scale in the Y I converted one of the edges of the helix to a line however it is still connected to the object and I cannot remove it from the object, what have I done wrong? Thanks