Best Free or Low Cost Marine Design Software? (2008-2010)

Discussion in 'Software' started by Admin, Apr 8, 2008.

?

Which free or low cost hull modeling program(s) do you use?

  1. Bearboat

    3 vote(s)
    1.7%
  2. BioDesign

    1 vote(s)
    0.6%
  3. BoatExpress

    4 vote(s)
    2.3%
  4. Carene

    1 vote(s)
    0.6%
  5. Carlson Design Hull Designer

    5 vote(s)
    2.9%
  6. Free!Ship

    58 vote(s)
    33.5%
  7. Free!Ship Plus

    40 vote(s)
    23.1%
  8. DELFTship free

    29 vote(s)
    16.8%
  9. HullCAO

    2 vote(s)
    1.2%
  10. Hull Form Free Version

    3 vote(s)
    1.7%
  11. PolyCAD

    3 vote(s)
    1.7%
  12. jSDN

    4 vote(s)
    2.3%
  13. Other (please post below)

    20 vote(s)
    11.6%
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  1. Fanie
    Joined: Oct 2007
    Posts: 4,603
    Likes: 170, Points: 63, Legacy Rep: 2484
    Location: Colonial "Sick Africa"

    Fanie Fanie

    PI,

    It is unfortunately a bit of a pain. You can zoom in to get it more accurate, but you can also type the distances in the measurement window to get it spot on. I use delftship, don't know if it is any different.

    You can drag the profile ie the transom to the approx you expect, then trim it out exactly.

    To get the shape right, you have to work on all three profiles.

    Hopes this helps a bit.
     
  2. PI Design
    Joined: Oct 2006
    Posts: 673
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    Location: England

    PI Design Senior Member

    Thanks Fanie,
    Unfortunately it is only the control point you can type the location of, not a point on the hull surface.
     
  3. marshmat
    Joined: Apr 2005
    Posts: 4,127
    Likes: 149, Points: 63, Legacy Rep: 2043
    Location: Ontario

    marshmat Senior Member

    Hey PI,

    I know what you mean about Freeship / Freeship+. I think to a large degree it is inherently part of the nature of a subdivision-surface modeller. Simply put, there is no exact hull surface in Freeship, at least not in the same sense as a NURBS surface where any point can be evaluated to arbitrary precision. The actual surface you see in Freeship, and that is used for calculations, is the result of a series of successive approximations. It averages to the actual surface, but it is not the actual surface.

    Now, for all practical purposes, I find that careful use of intersection lines and markers in Freeship allows one to (with some patience) match the surface to the markers to well under construction tolerances.

    I find lines fairing in Freeship to be a bit more of a hassle, though. Fairing by control curves is relatively easy. But the finite precision of the subdivision surface frequently makes curvature plots of diagonals, buttocks or waterlines oscillate like crazy, even when the curve is actually fair. It's much more of a problem on very gently curving shapes, like diagonals, than on high-curvature shapes like stations. But a nuisance nonetheless, as fairing by control curves alone always makes it feel like something was missed.
     
  4. thudpucker
    Joined: Jul 2007
    Posts: 885
    Likes: 31, Points: 0, Legacy Rep: 453
    Location: Al.

    thudpucker Senior Member

    Help me, I'm baffled by the boat design software. I'm just a hobbyist, a tinker, and without a tutorial or a friend to help me understand these Cad Programs I'm lost in a desert.

    Which of the Freeware Boat design software's come's with a Tutorial?
    Or some other kind of help?
     
  5. sabahcat
    Joined: Dec 2008
    Posts: 792
    Likes: 28, Points: 0, Legacy Rep: 273
    Location: australia

    sabahcat Senior Member

    Yep, I only want something simple as well and really, I have the hulls and am just after something for doing an interior layout with measurements.

    Getting sick of using paper and scale rulers doing the same or similar pic over and over again

    MS paint with measurements would almost do me, almost
     
  6. thudpucker
    Joined: Jul 2007
    Posts: 885
    Likes: 31, Points: 0, Legacy Rep: 453
    Location: Al.

    thudpucker Senior Member

    sabahcat There's some good news on the horizon.
    I have recieved a download of a Tutorial that will work with Freeship.

    I'll send the sender a note to contact you. I'm not sure he wants me to blast his information all over the board.

    It aint easy! But with some concentration, I'm learning the things that his program can do with Hull form (that's all so far) I think I'm just gonna need some patience to get to the rest of the Details.
     
  7. venomousbird
    Joined: Jul 2007
    Posts: 84
    Likes: 2, Points: 0, Legacy Rep: 29
    Location: vancouver, BC, Canada

    venomousbird Junior Member

    For ease of use and dependability, especially for beginners, I would recommend google sketchup. I've put some high demands on my CPU with this program and had no problems with freezing. You can add accurate dimensions, and some higher-end programs are able to import the files you produce. It's not designed specifically for boats, but with the unconventional sorts of ideas I have, I actually find this to be useful. If I wanted a typical boat, I would just buy one.
     
  8. thudpucker
    Joined: Jul 2007
    Posts: 885
    Likes: 31, Points: 0, Legacy Rep: 453
    Location: Al.

    thudpucker Senior Member

    I have Google sketchup. I cant figure out how to use it.
    I wrote Google. They said there is no Tutorial, but there is a forum. The forum is for the Pro version. I didnt get any help there.
     
  9. sabahcat
    Joined: Dec 2008
    Posts: 792
    Likes: 28, Points: 0, Legacy Rep: 273
    Location: australia

    sabahcat Senior Member

    I've been trying to get my head around this freeby

    Autodesk inventor LT

    http://labs.autodesk.com/technologies/inventor_lt/

    A long way from a result yet, cant even figure how to get it to play metric instead of that bloody outdated imperial system
     
  10. sabahcat
    Joined: Dec 2008
    Posts: 792
    Likes: 28, Points: 0, Legacy Rep: 273
    Location: australia

    sabahcat Senior Member

    Yep, just had a look at some of the tutorial videos in sketchup and it "appears" pretty easy
     
  11. mics_54
    Joined: Jan 2009
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Alaska

    mics_54 New Member

  12. thudpucker
    Joined: Jul 2007
    Posts: 885
    Likes: 31, Points: 0, Legacy Rep: 453
    Location: Al.

    thudpucker Senior Member

    Wow! Thanks a bunch. I'll try to copy that to my Thumb drive. Maybe there's hope for the dope yet!
    I get stumped and my mind just goes off to some other place. I dont realize how bad it is till I suddenly snap awake and suddenly ralize I've been asleep.

    I've been looking locally for someone who could teach that course real time.
     
  13. robherc
    Joined: Dec 2008
    Posts: 432
    Likes: 5, Points: 0, Legacy Rep: 102
    Location: US/TX

    robherc Designer/Hobbyist

    Hey, I'm fairly new to FreeShip, and have been getting fairly irate as (for my multihulls, at least) I'm having aheck of a time getting the hull on the screen to match the one in my head...lol I know where the points I want the hull to TOUCH are, but I REALLY don't want to have to do the math (triangulation) to put the midpoint of a line there, so that the hull will match tangentally there.
    So far, I learned how to "crease" lines and "mirror" planes to get a sealed hull that the programmed formulas can spit out info on. My biggest issue is that I always end up with the right co-ordinates for the centerline, but not ANYWHERE else...the entire rest of the hull becomes much finer than I wanted.

    Can you @ least point me in the right direction here please?
     
  14. JotM
    Joined: Jan 2009
    Posts: 97
    Likes: 9, Points: 8, Legacy Rep: 34
    Location: Leiden, the Netherlands

    JotM Junior Member

    Man, this is frustrating!!!!

    BTW as discussed here, Carene can be taken of the list. It is no longer available. (I have put out an independent request to Jeremy Lainé, the son of, but that has remained unanswered until now)
     

  15. mics_54
    Joined: Jan 2009
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Alaska

    mics_54 New Member

    freeship uses control curves too.

    "Can you @ least point me in the right direction here please?"

    Did you go through the tutorial available from delftship/freeship?
     
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