Hi mdesign,

re:
> In the matter of ViaCad. I`ve asked on their forum. Only ViaCad Pro has got ACIS kernel modeling
> tools. ViaCad 2d/3d doesn`t. It changed lately. It`s not so cheap to buy it only for fillets.

Are you sure about this? Their feature comparison page here:
https://www.punchcad.com/product-line-comparison

Has "ACIS® Solid Modeling Kernel" and "Shelling, Blending" both marked for ViaCAD 2D/3D...

- Michael