I use SolidEdge ST2 but with Traditional Modelling. I am trying to draw a part that serves as a cam.  The geometry I need isn't a CAM though (offset circles or ellipses).  Rather, it is a spiral (a shape where the radius changes smootly and consistently with the angle.)  I have done spiraling helixes before, but this is not a helix.  It is a flat part with a constant thickness.  What I am looking for is a way to draw the spiral in 2D and then extrude it.  I haven't been able to find away to do the 2D spiral. Any ideas?

hi JDenhart , for making spiral in 2d enviornment, make spiral in 3d then go to file menu and use creat drawing option

then your 3d spiral will come in 2d, whatever view u want.

second method is go in 2d drawing make spiral, use split and trim option.