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Thread: 3D printed rudder

  1. #1
    Join Date
    Sep 2011
    Location
    Maribor, Slowenia
    Posts
    31

    Default 3D printed rudder

    Lattely i've been playing with my 3D printer.
    To me it seems that creating small and precise profiles for our boats is difficult, unless one has a mould.
    So this si a sample rudder for our national class boats:


    It was printed in two hlafs like this:

    from pla plastic, glued together with super glue:

    the shaft is 3mm brass tube, otherwise i use aluminum with a 2mm carbon rod in the middle.
    Poliester putty, sticks well to the plastic

    and finally spray paint

    5 layers of it to smooth out the layers completely.
    I was in a hurry with this one, so pre season testing can begin, for future rudders car paint will be used.

    In my case build time was reduced greatly. No waiting for epoxy to cure, no sanding the wood core..and the shape is surely as defined by the airfoil chosen. It took the printer 7 hours to print it. 2 hours of work were needed to glue it and finish the surface.


    The stiffness is alright, it is not as strong as glasfibre rudders, but at the speeds our boats create it won't bend or twist.

    Weight is 35g, not light, but when building three different boats a year and testing many different foils it certanly saves a lot of time.

    Cheers

  2. #2
    Join Date
    Apr 2011
    Location
    Maryland
    Posts
    119

    Default Re: 3D printed rudder

    What a great idea . will start one today on my Makerbot printer.
    to stiffen it up some add a slot for a piece of small carbon tube inside. should help a lot.
    Craig

  3. #3
    Join Date
    Apr 2005
    Location
    Gold Coast Australia
    Posts
    125

    Default Re: 3D printed rudder

    I've looked at 3d printers and due to my not so bright mind I've been a bit overwhelmed by the skill/brainpower required to use them. Is there information sch as "3d Printers for Dummies" available anywhere? Or am I just too long in the tooth - and I should let some young bright spark get on with it?

    Tony

  4. #4
    Join Date
    Sep 2011
    Location
    Maribor, Slowenia
    Posts
    31

    Default Re: 3D printed rudder

    RGSAILOR, how is the makerbot, are u satisfied? any tricks?, I use ultimaker2

    A carbon tube would help but there is no need for it really.


    TF, there are some tricks used with 3d printers, once you learn them, the procedure is always the same. Designing your own parts thats where the bright spark comes into play, but even if you don't intend to draw your own parts there are plenty of
    pre-designed ones on the net(thingiverse.com, grabcad.com, shapeways.. etc etc..
    Many tutorials and tips about 3d printing can be found on youtube, 3ders.com, wikipedia and forums.

    The printer is a big investment at first, but in the long run it's well worth it.

  5. #5
    Join Date
    Apr 2005
    Location
    Gold Coast Australia
    Posts
    125

    Default Re: 3D printed rudder

    Thanks for that spade,

    I'll check those sites out and see what I can learn.

    I appreciate your finding the time to give me this info

    Tony

  6. #6
    Join Date
    Apr 2011
    Location
    Maryland
    Posts
    119

    Default Re: 3D printed rudder

    The Makerbot is OK. I think they all have some issues in one way or another. my biggest problem is inside holes tend to be small. easy work around to add a bit to the size.

  7. #7
    Join Date
    Nov 2006
    Location
    Northern VA
    Posts
    1,529

    Default Re: 3D printed rudder

    ^ get to work.....
    Marc

    S1M 1981
    Victoria 81
    RG65 181
    IOM 81, 681, 881

  8. #8
    Join Date
    Apr 2011
    Location
    Maryland
    Posts
    119

    Default Re: 3D printed rudder

    Hey Marc
    It's called "professional development" I am working !
    I take great pride in taking on any "crazy" idea's the designers and "higher up's " have here at work.
    Good ideas come from many places. You just have to look for them. :-)
    And when you need a rudder Call Spade, shipping from Slowenia should not be bad...
    Craig

  9. #9
    Join Date
    Nov 2006
    Location
    Northern VA
    Posts
    1,529

    Default Re: 3D printed rudder

    professional development. thats what you are calling now.... if smells like BS and Looks like BS.....

    hey, if lake anne is still hard, want to go to WSM on sunday?
    Marc

    S1M 1981
    Victoria 81
    RG65 181
    IOM 81, 681, 881

  10. #10
    Join Date
    Apr 2011
    Location
    Maryland
    Posts
    119

    Default Re: 3D printed rudder

    Like my daddy always said, if you can't dazzle them with brilliance baffle them with BS.

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