Form Net 8 x 16 Rectangle

[Jaco van der Molen]

Coincidentally, this just came up as as issue on the lsynth github.  The net generator spreadsheet could be used to model that.  But you'd have to do it in 2 parts, and you might want to substitute string parts for the box primatives.  There's a link to the net generator download somewhere in the issue messages.  https://github.com/deeice/lsynth/issues/5

I knew I had seen this before:
http://www.sayce-jones.co.uk/lego/cad/net/index.htm