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Go Back   SailNet Community > On Board > Boat Review and Purchase Forum > Sailboat Design and Construction
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Old 01-13-2011
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Anyone here involved in Sailboat design.?

I have been in the CAD field for 15 plus years and was wondering what CAD program is generally used in the production of construction documents for producing sailboats. Anyone have a clue.? Solidworks.?
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Old 01-14-2011
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When I was working in yacht design last, we were still hand drafting. I have looked into yacht design programs at various times and still have friends in the industry. I think that there are a variety of programs out there that are popular. Some are overlays to Autocad, and some are stand alone programs.

The two programs that I heard of a number of designers using are the marine versions of Rhino and MaxSurf. FastShip and FastYacht used to be the standard in the industry but I have not followed them lately.

Jeff
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Old 01-14-2011
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Onstaff or Consultants?..

Do most sailboat manufacturers have on staff designers and CAD people, or are designs mostly done through independent designers/contractors working under contract with the builders? Like Beneteau here in SC, would they hire CAD people to produce documents, or would they commission a design from someone and then that designer would employ his own team..?
Just curious, I don't have any experience in that field or anything..have been an Architectural Drafter for many years and am now in the IT field..just think it would be a cool job and wondered what the process is..
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I don't think that there is a rule on this. Some companies like Hunter, Catalina, Tartan and C&C have in house designers, while others like Beneteau, Dehler and Morris use name brand designers. I don't specifically know whether there are in house designers and draft people at Beneteau's South Carolina facilities, but at least in the past, Beneteau would sometimes buy the lines drawings from the name-brand designer and then design their own interiors, detailing, and own engineering.

Jeff
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Old 01-15-2011
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I have a seat of Rhino, and use Solid Edge at work (not marine). Rhino is quite popular in marine design. Solid Edge or Solid Works are excellent for all the mechanical systems on a boat, not so much for hull and deck design. Most of the larger marine designers would likely use Fast Ship or Fast Yacht, and many would still have a couple seats of Rhino too.

Gary H. Lucas
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Old 02-24-2011
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What are the advantages of using Rhino, that is, what is the difference between a marine design CAD program and a mechanical CAD program such as Solidworks? It seems like it would be pretty easy to sweep or loft a hull in Solidworks, what makes Rhino different?
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Old 02-25-2011
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Quote:
Originally Posted by mcavacas View Post
What are the advantages of using Rhino, that is, what is the difference between a marine design CAD program and a mechanical CAD program such as Solidworks? It seems like it would be pretty easy to sweep or loft a hull in Solidworks, what makes Rhino different?
Rhino is a surface modeler, not a solid modeler. Many Solid Works, Solid Edge, Inventor users own a copy of Rhino because it is vastly better at what I call sexy curves type modeling as opposed to box and cylinder modeling. All 3 of those solid modelers claim to do sexy curves, but it is often an exercise in frustration. I personally use Rhino to fix models for import that Solid Edge chokes on, and also to simplify very complex models.

I have modeled very complex mechanical models in Rhino, but that is not it's strong suite. However at about $600 for Rhino vs $5000 for one of the other three Rhino is a very good value.
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Old 06-04-2011
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I've done a wee bit of yacht design over the past 40 years.
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Old 06-04-2011
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Bob,
Your post reminds me of a trip to the Atlantic City sailboat show years ago. I was standing in a J something about 32 feet and I happened to notice the chainplates on a bulkhead that had 6 - 3/4" stainless bolts holding it. I commented to the salesman that it was a very impressive installation with the huge bolts. He said that the bolts were only sized like that to keep them from tearing their way up the fiberglass bulkhead and that you had to be careful not to overtighten the Nylok nuts, which would crush the bulkhead. I thought "Wow, a really knowledgeable salesman!" Then I looked at his name tag, OHHHH! it was Rod Johnstone!

Gary H. Lucas
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Old 06-04-2011
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Thanks Gary. You can ask any questions you like. I'm here for my own pleasure and it would be my pleasure to help you.

Rod is a good guy. Years ago he did an exhaustive study on stability and roll over stastics. The result was the boats with the best stability number were more prone to roll overs. I'm not sure anyone listened except me.

Get Macsurf. That will help you desging hulls and VPP's.
Learn Rhino or solid works. That will help you with the bull **** element of design that is becoming so necessary today. Do you have any idea ho m,any boats I designed with a pencil, some curves, a few splines and weights, and my meager brain. Many.

I have to go. I should not post after half bottle of wine.

Get all the software. It will make you a genius.
I'm not exactly sure what software Olin Stephens used.
I know Bill Garden laughed at the idea of software.
Bill Atkin never heard the term "software"

I'm not trying to scare you off.
I'm trying to put things into perspective.
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