Chris Ostlind Previous Member   Chuckle Pardon me, Caldera, if I have a good irony chuckle on your behalf. When you combine this discussion with the one from a month or so back about the lack of integrity for swiping other people's hulls, one begins to get a very interesting picture of your person. When SolidWorks has an installed base of working seats that meet or exceed those of Rhino in NA applications, drop me another line and we can talk, so to speak. After I import my surfacworks surfaces in solidworks, I will try to fillet some of the edges. Location: Southern England This is an interesting argument, which I have been following for some time. Originally Posted by Chris Ostlind Pardon me, Caldera, if I have a good irony chuckle on your behalf. I love surfaceworks, but Rhino seems like a good overall package - especially with their add in marine module and their prices.
Originally Posted by Chris Ostlind So, I'd say different school rather than old school and at this point in my career, Rhino is a real opportunity to have powerful modeling tools for what ends-up being very reasonable prices. Location: Southern England I assume that the above boats all float on their marks and upright? Not to cast aspertion on good work, but it's very easy to draw pictures and not design boats. Any Marine design is done in Rhino Autocad gets used for dimensioning detailing and printing which Rhino is poor at. When making potentially dangerous or financial decisions, always employ and consult appropriate professionals.
A) Especially if you are thinking of building your runabout out of sheet metal, I would recommend using the Maxsurf Suite since it combines hull design and plate developement. Both these applications can export 2D&3D DXF (or points if you really want to, but why?) of frame shapes (sections) through the hull surface.
Maxsurf also allows you to quickly calculate hydrostatic data such as LCB, Cb, Cp, Displacement & produce curve of areas graphs.
If I develop the bottom hull plates in Workshop, it produces patterns with a curved line along the keel?
I'm not baging your program but I don't believe it is suitable for developing small boats, it has too many bell & whistles for the small boat-builder. I have tested a number of design programs and nearly all have this same development problem.
Originally Posted by Jbaker If I develop the bottom hull plates in Workshop, it produces patterns with a curved line along the keel?
Location: australia Jbaker I think you might be misinterpreting the situation, have you tried to make a model of this to see if it fits.
Rhino, Older Newer I could not open a file sent from later Rhino, in my VS 2, Why did the rhino gurus decide upon this tack?
Location: Seattle, WA As new geometry types and features are added to Rhino there is no way for the older version of Rhino to understand these geometries that didn't exist when that version was written.
Location: Michigan yikes, the rhino software is very expensive according to what's in my wallet!
Location: Ontario CATIA is a powerful program for a major design office, yes.
Location: Ontario Has CATIA come down in price then, or is it just cheaper over there? The boat concept was first developed in Freeship, to take advantage of its statistical reports, to get the 'statics right. This conversion seemed to work OK, but some little niggles I found in the model build made me curious. I took the frame files used for the CNC cutting, and loaded them into Rhino, and added chine lines.

The export and import into Rhino as a 3d DXF mesh went ok, but Rhino cant manipulate meshes very well. Then, following advice from several places, including help on this forum, I put 'intersecting surfaces' at the desired station distances. The key command was IntersectTwoSets - that produces a curve that can then be manipulated as desired, including producing a frame CNC cutting profile.
It would probably be easier to use the Marine add on for Rhino in future, but for budget development, this may be useful for some people.
Location: Iowa I was always able to get station profiles when exporting the offsets.
Originally Posted by lewisboats I was always able to get station profiles when exporting the offsets. Location: Tasmania,Australia Out of interest, I superimposed the manually produced frame line (Purple) (via Autocad) with the 'derived from Polysurface ' line result (Yellow), and got this result. Overall though, the accuracy was visually acceptable, but you would need to clean up the line to put it through a CNC router.
Originally Posted by bhnautika It?s the problem of using meshes rather than a continuous surface like ?nurbs?.
Although the import results in a whole set of individual Poly lines as the drawing, when I place an extruded plane across the multiple lines, the IntersectTwoSets command produces a curve at the intersections, which I would never have expected. I can also place individual points at the intersections if I wanted to plot a frame, which I cant do with a Polysurface. Location: australia why rebuild the surfaces in rhino when you have them in freeship?export the surfaces using iges. Originally Posted by rwatson The problem is, in Freeship you can specify how many stations ( and you need to use as many stations as will give the best detail in the design), but you cant selectively create station profiles for where you want to have a molud placed for building from. In Rhino or Autocad, You now have the station outside lines with both fore and aft sides of a frame. Originally Posted by jarmo.hakkinen If I understood You correctly, You are trying to get CNC-routing files from Free!Ship -lines plan.
Originally Posted by jarmo.hakkinen In Rhino or Autocad, You now have the station outside lines with both fore and aft sides of a frame. Originally Posted by jarmo.hakkinen If not using lines plan, but exporting as 3D-polylines, the procedure is much the same, only the fore-and-aft station lines of a frame are already at correct distance, Not sure about that info. The aim was not to get the surfaces, but to get the frame profiles to manipulate CNC cuts in moulds.
I emailed some ORCA3 sellers today, to get prices for the marine add-ons for Rhino, but I am scared of the answer. Location: Rockport, Maine & Rochester Hills, Michigan If the hull shape is going to be imported into Rhino or re-created in Rhino, then why not obtain the frame shapes in Rhino rather than in FreeShip?
Michlet 9.30 Released » Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Search this Thread Advanced Search Similar Threads Thread Thread Starter Forum Replies Last Post Need Help Using DELFTship free! Marine Design Software - three-dimensional hull design and fairing, hydrostatics, stability and velocity prediction.
Combining an accurate and fully 3D model of the vessel, cutting edge technologies and a highly optimized graphical user interfaces into software that is easy to operate and very accurate. Surface-modeler for designing ships using subdivisiong surfaces rather then NURBS to create any type of hullshape.
By the way, Does your SolidWorks package have an integrated hydrostatic analysis package, or are you going to also pop for the Aerohydro thump-down and another 5 large to get that? Could you share a few drawings with us, an IGES file so we can see the quality for ourselves in our cheapo Rhino packages? As far as I'm concerned, the only thing I have found against Rhino is that it doesn't run under Linux*.
What we all need is a package which gives good control over accurate surfaces and lets you draw interiors and the like with the minimum of fuss.

I will not argue if others express a preference for another package, and I will not expect them to argue with me for expressing my preference. I use Rhino and SolidWorks mostly, and have written my own CNC G-code processor that runs in Rhino.
I don't do boats over 25' right now and the really high horsepower packages are just not justified from my perspective. From Maxsurf you can also export a 3D Mesh or IGES which could be used for CNC milling machines. If you need further Hydrostatic analysis capabilities you can easily add Hydromax to your Maxsurf suite later on.
Aft sections rolled out could be straight but forward sections must be curved to match the 3D curvature of the bow sections. I've worked for the new OCEANIS range for BENETEAU under CATIA v5 , I designed megayacht for Mr ESPEN OEINO under rhino3 and now multisailing boat for ALLIAURA MARINE under SOLIDWORKS and RHINO 3 .
The above method may be ok for flat surfaces but using mesh-based surfaces for section lines on curved surfaces has its problems. Just create the inside lines of a frame, add surfaces around and offset face if necessary for the planking.
Well, after modelling in FS, with as many stations as necessary for best control on the shape desired, delete these stations, and create a new set of them at the spacing of the building moulds. Exporting direct to CNC router isnt an option, as there is lots of manipulation to do to the cutting files - nesting being the least of the work. It identified the 'problem spot' where the designer in Freeship looks like they tried to do something tricky with the decks. ASC's On-board and Load Planning software, Autoload® is used at all stages of vessel operations. And the price to get involved is only deductable from your tax filings if you first pay for it. As far as I'm concerned, Rhino 3 is (pound for pound) one of the best peices of CAD software I have ever used. For me, boat design is not nearly as profitable as the aerospace fields, so it's just an expensive hobby. An extreme example is of a pipe cut at an angle, if you unroll the pipe surface you get a bell curve edge to match the 3D points of the straight cut. ALL are differents , all bring new or differents posibilities like CFD , renderings , 2d drawing , PLM , associative works and many more . When I applied the FAIR command to the chine and sheer lines, they left the vertical station lines by a noticeable margin. I have just been inspecting the curves produced, and have found some anomalies as you predicted. The program reads data from tank, draft, wind and SCR sensors as well as user-input, and then reports on the condition of the vessel. Picture shows section through round bilge boat, dark blue line is from surface from freeship 2.6 in iges format.
And if You wish to have them milled in 5-axis router, add a station on both fore- and aft-sides of a mould.
Autoload is often used in conjunction with ASC-developed load planning modules specific to a vessel type, eg.
But, to re-type all that data from the offset text file, into points to create a cutting file for CNC machines, is a very tedious affair, if you can get all the stations you want, and not some at odd, non uniform positions.

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