Ive worked all the day in this definition and I hope you like it.

With this you can:

-make ribs with notches

-use the sliders to specify the x and y spacing of a rectangular grid or

-use a custom grid (for this you just need 2 sets of lines)

-specify the thickness of the material

-atomatically place and order the ribs with labels for cut

-use a 3d guide for construction

-Run or stop the definition

It has torus example inside with the custom grid option on.

For now (and its just today) all the geometry I sliced worked perfectly.

Slicer.ghx

Any suggestions will be very welcome!