Nev Green sent in an interesting note on how to How to design a 12 using Google sketch up. You can read how to do it here How to design a 12 (http://www.national12.org/news_ltr/2015/how_to_design/how-to-design-a-12.pdf) there are also PDFs for the side view (http://www.national12.org/news_ltr/2015/how_to_design/both-sides.pdf) and jig view (http://www.national12.org/news_ltr/2015/how_to_design/build-jig.pdf)
Happy sailing
Graham
The following expands on the build technique.
https://www.dropbox.com/s/ovw8cvvt83cmqbb/Build%20Squence.doc?dl=0 (https://www.dropbox.com/s/ovw8cvvt83cmqbb/Build%20Squence.doc?dl=0)
Nev