Fin Design

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Anomaly's picture
Joined: 11/03/2021
Alternative fin design

Kia ora everyone, happy new year from New Zealand! I saw a few posts regarding 3D printing, and I thought I'd share what I get up to when I'm not prostituting out my time for paper with dead people's faces on them. I started 3D printing fins years ago but have tried to push and develop them beyond what you'd typically see. It's a fun learning process and I've definitely picked up some useful information on here regarding composites, epoxies, and the occasional bruhaha regarding hydrodynamics.

7 posts |
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MichaelAppleford's picture
Joined: 10/22/2017
Waterproof ink for stamping outside of fins
Hi, I'm trying to work out a process of transferring my designs onto the exterior of a fin. You can see an image of one of the fins below using rice paper which isn't as perfect as I'd like. I've experimented with rice paper printing and laying it down underneath the final coat of resin, but the resin itself isn't heavy enough to weight it down uniformly and it either stiffens up the fin too much, or you just end up going through the layer of resin back onto the fin beneath. That's the image I've posted.
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Trevor Ryan E.'s picture
Joined: 09/26/2016
Fin Design

Hello all, I need some advice. I'm doing a science project on the shape of surfboard fins in relation to the drag generated. I need to choose on variable to change in the design of the fins (Rake, Hieght, Base length, Thickness, ect.), but this variable needs to affect the drag of the board so that I can get results. So what so you guys think I should do, what single variable greatest affects the drag of the board?