Hi

"steveJ" skrev i en meddelelse
...

If the boat is lofted to the outside of the planking, you will have to
loft the boat and subtract the planking to establish the sections. A lot
of work. That is what you buy when you purchase a design.


Well , ----- I could not resist that one , you se with most CAD programs
there are an offset function. This produce exactly paralell lines with the
exact distance -- or as you ask ,the exact plank thickness on outside the
section lines . Point out the section line and type in the offset distance
and what side of the original line ,and it's there.
P.C.