Hi,

I was wondering.....

If you design a boat (glue and stitch in this case), how do you develop the
shapes to cut out of plywood?

I realize that there is software to do this, but...how was it done before
computers?

I thought of making a model to work out the shapes, but short of this, I am
perplexed.

Thanks,
Jim

Hi

This is tradisional boatsbuilding , you make a number of sections from
the drawing and place them how the drawing show the sections. Then you
divide the edges of the sections into how many panels and then use a
strait thin board that you nail onto the sections , where it get
impossible to make the board follow the expected midline of the panel,
you simply nail a new thin board and let it point in the right
direction. --- Then you measure up and down from the edges of the board
and note the measures where they are taken.
When that's done you take off the board and place it ontop the plywood
sheet and make marks from the measures you made --- connect the marks
and the shape shuld be right.
Just one way.

Ah, that's a good question. The answer can't be given in a paragraph
or two. I designed and built a stitch and glue boat after reading a
book by Sam Devlin. After making some sketches, the next step is to
make a half hull scale model. Then use mylar film to trace the panels.
Then scale up the dimensions, and build another larger full hull model
and test it, or if you've got the guts (or are crazy), just scale it up
to full size and build it. I have a webpage on my boat, The
Peregrine. Check it out:

http://www.angelfire.com/ultra/edaskew/peregrine.html

Here's the link to Devlin's book, "Devlin's Boatbuilding: How to Build
Any Boat the Stitch-and-Glue Way" on Amazon:

http://www.amazon.com/exec/obidos/tg...books&n=507846

Ed.


Jim Newell wrote:
Hi,

I was wondering.....

If you design a boat (glue and stitch in this case), how do you develop the
shapes to cut out of plywood?

I realize that there is software to do this, but...how was it done before
computers?

I thought of making a model to work out the shapes, but short of this, I am
perplexed.

Thanks,
Jim