Inspired by many other Forums and Sites and by courtesy and effort of @ RICHARD I added this section the Forum.
I am asking anyone who has knowledge of using design programs such as CAD / CAM to share with us their experience.
Often I found on the INTERNET plans for submarines but are too small to be enlarged for.
Since then I keep thinking if such programs can be used for solving this drawback and to assist those who want to increase those plans for them to be useful.
THANK YOU very much.