I'm new to SU and I am trying to draw a product I am developing. The design needs to be vacuformed (hot plastic sheet pulled over a mold via vacuum). I have a complicated 3d contour that needs to have a 1/4 inch "thickness" of plastic added to it. Since it's not a simple 2D shape, I can't just use the offset function.. Is there a Ruby script somebody created that would get the job done? I would like to select a surface, select an axis such as "red", type in an offset and get a new surface created.

I can't just copy and move the 3D surface in my desired axis as, a sphere for example, would only gain "thickness" in the axis it was moved but no thickness gained in the perpendicular axises.

Thanks in advance,

Mike