Hi

stevej wrote in message ...
Well Per, I was just thinking.
I wrote that I COULD IMAGINE someone doing it.
I didn't say it made economical sense.
I'm not sure what you are talking about with this 3d and foam stuff.
William's boat is plywood (I think)
That means that after he has worked out all of the panels
and reduced them to 2 dimensions, they could be cut
on a computer driven router.
I know little about this and prefer to keep my
boat building simple. I've tried to use computer programs to
draw and then build a boat. It ain't easy. I've drawn lots of
hulls from tables of offsets though and lofted a few.
I am currently building perhaps the simplest, and mabey the
most seaworthy design ever, a greenland style skin on frame kayak.
everything is in units of fathoms, cubits and fingers, which is
different for everybody. Building from instinct and tradition
also works and I like the idea that I don't need to calculate
anything or use any numbers larger than 3. And you have to admit that
for its intended use, a greenland kayak is a pretty successful...no,
let me rephrase that...an AWESOME design.
SteveJ


Well that\s exactly how Cyber-Boats are drawn, ------- what you get
when you ownload one of the nice Cyber-Boat designs, is the actural 3D
model so you can work on with your computer and get over the first
difficult steps. Buat also you get the exact building Jig in full
scale on paper, and the unfolded panels or planks that fit exactly
onto the building Jig , ---- even for the Lapstrake hulls.
Those designs is produced with my in-house software that don't offer
just 6 ribs or sections as some of the free download stuff do, but a
hull that is first projected with splines , then as there is no use
for Splines after the ends meet the Splines is divided into maby 200
small 3D Lines in a computer mesh entity the length of the hull, and
maby only 4 strait lines the other way ; guess you se the gadged,
----- compleatly smooth and accurate the length of the hull and the
exact 4 panels from keel up, the other way.
Then the 3D Model is unfolded and 4 exact panels or 3 if that's what
you asked the program , is drawn flat out on your screen and even you
can't se it, one millimeter in the drawing is one drawing unit , so
when the print shop get the AutoCAD drawing you get all pieces
unfolded drawn on cheap paper in full scale.
-------- If you want another check, you just add a circle ontop the
drawing in a specific color, and check if that one have the measures
and is compleatly round.
Go to Cyber-Boat old site where you will se the process described as
how this worked 10 or 12 years ago, but please remember that just
becaurse they build boats with the old methods for centuries , this
don't mean that somone that builded loads of hulls ,can't invent a
method that work better and esp. better than forcing the old rigid
methods into computer code, ---- realy the result not if it is
different than the conservative method count. Just check how
architects just written the old settled methods into computer code ;
it run faster and more accurate, but it is still the same old
Lego-Mind , making block on block counting each window , ------ but
not the creativity anyone else than architects expect. The same with
boatsbuilding ; you read a group where the designs offered is the same
70 year old designs, left over from a time where a boat was somthing
you made for the kids , from the leftover scrap plywood and Popular
Mechanics plans ; you think that is boatsbuilding ?
Well it's often craft in a quality that a boatbuilder would not
accept.
Then even the technology put forth in this group is what was here 8
years ago ; Do you realy think this wabbeling set of ribs ;

http://w1.1396.telia.com/~u139600113/models/scale-4.jpg

is a better set of ribs to build on and place panels on than this ;

http://w1.1396.telia.com/~u139600113/dwg/main3.jpg

????

Well , Cyber-Boat was the first to interduce full-Scale plans in this
group so do you realy think that is possible without knowing what
boats building is about, ------- still after the harasment in this
particular group I decided to stay with offering just the ready
designs that was the result of develobing software ontop my life long
experience building boats, and forget about publishing the software
then you Jokers can stay with your boxes.

Per Corell