aspiire provides modeling tools that will create a 2.5d model from a 2d flat vector, too many times this is taught as 3d yet full animation round is not possibble on a three axis machine, further it will give tools for sculpting and creating 2 rail sweeps for manipulating 3d models. i believe you work in Rhino which at many more $$$$ goes a bit further than this. vcarve pro does not contain these tools