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DIY dinghy design
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RS400atC View Drop Down
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    Posted: 29 Jun 13 at 7:35pm
Originally posted by JP233

Develop the idea on paper.
create it in freeship, export it as an STL.
3D print it!


There are people with 3d cnc routers to make you a full size plug from your files.
DIY cnc is also a well established hobby....
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Posts: 47 		Post Options Post Options   Quote JP233 Quote  Post ReplyReply Direct Link To This Post Posted: 29 Jun 13 at 5:09pm
Develop the idea on paper.
create it in freeship, export it as an STL.
3D print it!
Thanks
Jamie
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Reuben T View Drop Down
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Posts: 74 		Post Options Post Options   Quote Reuben T Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 13 at 3:31pm
Delft ship is another free design program although it's intended mainly for ships it still work ok until you want to put foils/masts ect 

Sellotape and card worked reasonably well for the plywood dingy I made, you just have to allow for it being able to get tighter curves and not get to ambitious

I am also just finishing a strip plank kayak that I designed using proper lines plans ect, its actually not as complicated as it is thought to be, and its a very satisfying process that helps you understand the hull form more than I have found in my brief attempts at CAD (probably can be better if you know how to use the programs).
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Posts: 1151 		Post Options Post Options   Quote 2547 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 13 at 3:07pm
Originally posted by tgruitt

Originally posted by 2547

Originally posted by tgruitt

I've used a beer mat to design a National 12.

Really, which one?

I believe legend has it a beer mat was used by Richards and Waller  to conceive Punkarella the first one planker. 


I say 'designed', I mean 'made something that looked like'.

Ah .. Ok
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Posts: 2479 		Post Options Post Options   Quote tgruitt Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 13 at 1:44pm
Originally posted by 2547

Originally posted by tgruitt

I've used a beer mat to design a National 12.

Really, which one?

I believe legend has it a beer mat was used by Richards and Waller  to conceive Punkarella the first one planker. 


I say 'designed', I mean 'made something that looked like'.
Needs to sail more...
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2547 View Drop Down
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Posts: 1151 		Post Options Post Options   Quote 2547 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 13 at 1:35pm
Originally posted by tgruitt

I've used a beer mat to design a National 12.

Really, which one?

I believe legend has it a beer mat was used by Richards and Waller  to conceive Punkarella the first one planker. 
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Posts: 742 		Post Options Post Options   Quote rb_stretch Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 13 at 1:09pm
Back in the days when I designed and made windsurf boards I used to use freehand on graph paper as well. I then roughly translated the shape to the foam blank, but once the electric planer was in my hands everything was done by the eye. Much easier to get fair curves that way - well at least for me.
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JimC View Drop Down
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Posts: 6662 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 13 at 12:26pm
I recommend graph paper over fag packets anyway, at least until you really know what you are doing... Personally I've never advanced to the level of expertise where I can draw freehand sections that match my waterlines...

[later] While not commenting on the actual shapes themselves (I don't think you can tell much from renderings anyway) the quality of the above renderings demonstrate one of the key problems with cad packages: you can get seduced by the beautiful output into thinking you've drawn a beautiful shape.

Edited by JimC - 28 Jun 13 at 12:29pm
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 13 at 12:25pm
Hi Getafix,

These are quick examples of output from Freeship/Rhino



Fag packets are fine, but a pain to calculate hydrostatics on!
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Posts: 1760 		Post Options Post Options   Quote maxibuddah Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 13 at 12:02pm
Fag packets are too expensive these days for design
Everything I say is my opinion, honest
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