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3D Printing Fins
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edoremus337



Joined: 27 Aug 2011
Posts: 138

PostPosted: Wed Sep 18, 2013 11:22 am    Post subject: 3D Printing Fins Reply with quote

Has anyone thought about making their own custom fins to be 3D printed? I work for a 3d printing company and was trying to imagine finding a market for this type of industry. Would any of you be interested in such a thing?

Of course the hardest part would be designing and producing the 3D CAD file on the computer but that's something I could do given appropriate specifications.

Thoughts??
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Gorge_R_and_D



Joined: 14 Nov 2006
Posts: 14

PostPosted: Wed Sep 18, 2013 11:38 am    Post subject: Reply with quote

No way it would be strong enough except for small multifins. Even the best SLA, SLS or FDM parts are no where near the strength of a material like G10..
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edoremus337



Joined: 27 Aug 2011
Posts: 138

PostPosted: Wed Sep 18, 2013 11:58 am    Post subject: Reply with quote

Yeah, I was thinking about strength issues but it would be interesting to at least try out and see what happens. FDM might work for fins around 25cm and smaller.
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MalibuGuru



Joined: 11 Nov 1993
Posts: 9293

PostPosted: Wed Sep 18, 2013 2:43 pm    Post subject: Reply with quote

Some thruster surfboards still use plastic fins. There used to be a line of cheap windsurfing fins made of plastic. If you roll over the reef and hit a rock, I think it would be over for them, so they'd have to be inexpensive.
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keycocker



Joined: 10 Jul 2005
Posts: 3598

PostPosted: Wed Sep 18, 2013 5:45 pm    Post subject: Reply with quote

Once the cad file is made, what would it cost to make the fin?
Would a milling machine make the same thing any cheaper?
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edoremus337



Joined: 27 Aug 2011
Posts: 138

PostPosted: Wed Sep 18, 2013 8:05 pm    Post subject: Reply with quote

The cost would probably be around 70-80$, but that is dependent on the size of the fin. I might make one for fun and try it out. I don't think I can damage my board or fin box in the process...I hope.

Last edited by edoremus337 on Wed Sep 18, 2013 9:21 pm; edited 1 time in total
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outcast



Joined: 04 May 2004
Posts: 2724

PostPosted: Wed Sep 18, 2013 8:51 pm    Post subject: Reply with quote

I wouldn
t write it off just yet, you could make cores and glass over.

Or use a prepreg material, or some ceramic you can bake.

Hard to beat evolution....the CNC can grind them out

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https://www.youtube.com/watch?time_continue=2&v=zw0MgkO7VXw
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edoremus337



Joined: 27 Aug 2011
Posts: 138

PostPosted: Wed Sep 18, 2013 9:23 pm    Post subject: Reply with quote

outcast wrote:
you could make cores and glass over.


good point...I'll keep that into consideration
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U2U2U2



Joined: 06 Jul 2001
Posts: 5467
Location: Shipsterns Bluff, Tasmania. Colorado

PostPosted: Wed Sep 18, 2013 10:09 pm    Post subject: Reply with quote

you make em, Ill try em

K4s are plastic, but not your everyday composition

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4Boards....May the fours be with you

http://www.k4fins.com/fins.html
http://4boards.co.uk/
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edoremus337



Joined: 27 Aug 2011
Posts: 138

PostPosted: Fri Aug 01, 2014 10:08 am    Post subject: fin printed Reply with quote

So I was able to get this project rolling at work. The fin has been printed in Ultem 9085 and measures 29cm. As you can see, the design of it was purely based on strength of the part since I have no clue how this will hold up under normal sailing conditions. We will be making a short video of the production and a clip of me sailing it when the wind looks favorable.

It flexes way more than a G10 fin so I imagine it will fail pretty quickly..I am excited to try it out. I think this is the worlds first 3d printed windsurfing fin Smile



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Windsurfing Fin 3d printed
 Filesize:  439.84 KB
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