Re: [CAD_CAM_EDM_DRO] bending metal plates for a boat hull

Doug -
I checked out the link. Interesting!

According to Bruce Roberts (www.bruce-roberts.com), assembly of his kits is
straightforward and dosen't involve too much machine bending. The CNC files
he sells include alignment marks to facilitate assembly. It looks pretty easy
until you have to plate he hull. Then you have to work with some large pieces
of plate and handling them looks like some work.

There are some links on his web site to pages where builders have cut the
pieces by hand with a plasma cutter using full size paper patterns. Aparrently
this approach works fine except that it takes a *lot* of labor!

Keith

>
> > Bruce Roberts (the naval architect of the vessel I'm considering) told me

that

> > approximately $30,000 USD of the cost of his metal kit is cutting charges!
> > That's what's motivating me to think about building a cutting machine.
>
> Once you have the plate steel cut, then you have to bend it - hopefully
> fairly precisely to match the other plates, all to be assembled into a hull.
> I presume there must be a method other than trial and error.
>
> Here is a webpage concerning cutting hull parts from thick plate:
>
> http://www.kastenmarine.com/NCparts.htm
>
> and here is a picture of the pieces to be cut (but if they are doing it by
> NC, why pre-paint the lines?):
>
> http://www.kastenmarine.com/10m_cut_plate.jpg
>
> Doug Fortune
> http://www.cncKITS.com
>