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Which fin is the shortest?

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Created by FRP 1 month ago, 21 Sep 2020
FRP
381 posts
21 Sep 2020 4:57AM
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I have started the "walk" to the nose on my 8'10" Sunova Speeed. Thought about putting in a long board fin box and the decided to make a couple of pivot fins. The template is from my 30 year old Hawaii long board fin. For now I am using large Cdrives which seem to work ok. Yesterday I made my first tentative cross step with out falling. I am amused by this classic optical illusion. So the question is which fin is the shortest and which is the longest? I will post the answer picture tomorrow.
cheers

Bob





supthecreek
2070 posts
21 Sep 2020 5:23AM
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Whichever one you use, because it may break off the tabs on the first turn

Fun with fins... have a good session! Bob!

FRP
381 posts
22 Sep 2020 2:37AM
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This is the picture of the same fins. 7.5", 8" and 8.5"





FRP
381 posts
23 Sep 2020 3:31AM
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It may be interesting to see how my self shaped pivot fins hold up. Six layers of wood plus four layers of fibreglass on the twin tabs and two on the fin body. The fins are flat (no foil). I will start with the 7.5" fin and a two plus one setup using Cdrives as the side fins. If the tabs hold up I will move on to the 8" and 8.5" fins. Is anyone else making fins? You would think a 3D printer and then glassing over the plastic might work??
cheers

Bob

FRP
381 posts
6 Oct 2020 9:49AM
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Select to expand quote
supthecreek said..
Whichever one you use, because it may break off the tabs on the first turn

Fun with fins... have a good session! Bob!


Yup! One turn.......dang.......I can hear a "Revolution" calling my name. Casey I think said in his video review that it can be ordered with a longboard box. Does it need one?

cheers

Bob


colas
4001 posts
6 Oct 2020 2:21PM
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Select to expand quote
FRP said..
You would think a 3D printer and then glassing over the plastic might work??


I have made wooden fins, but for US Boxes. And they broke very easily, so I cannot imagine trying for FCS1 tabs.

3D printing, what I would do (Disclaimer: I never attempted 3D printing myself.) is print the fin, and then use it as a template to cut the the fin in a G7 panel (FCS fin tabs are 6.35mm thick), or G10 as it is easier to find. And as a guide to sand the foil of the fin, with some device to copy it (I have read a soldering wire works great).

Or you could try 3D printing with stronger materials. ABS, ASA, ... Carbon fibers.
Or 3D print a wax mold.



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