fin adaptors..

6 years ago
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sboardcrazy
sboardcrazy
NSW
8349 posts
NSW, 8349 posts
23 Jan 2020 2:25pm
I didn't know these existed? I suppose they are only for select fins?
www.select-hydrofoils.com/en/shop/windsurfing-accessories/multiconic-adaptor/
Mark _australia
Mark _australia
WA
23688 posts
WA, 23688 posts
23 Jan 2020 12:29pm
they are, but it is possible to machine the base of a fin down to then make one of these fit
FormulaNova
FormulaNova
WA
15105 posts
WA, 15105 posts
23 Jan 2020 12:50pm
Mark _australia said..
they are, but it is possible to machine the base of a fin down to then make one of these fit


Agreed. I used one to convert a fin. I already had one of these in a trimbox fin, so I just copied the profile using a grinder.
tbwonder
tbwonder
NSW
753 posts
NSW, 753 posts
23 Jan 2020 10:44pm
Sue, I have one of these, I will show you next time you are down at the lake
sboardcrazy
sboardcrazy
NSW
8349 posts
NSW, 8349 posts
24 Jan 2020 4:29pm
tbwonder said..
Sue, I have one of these, I will show you next time you are down at the lake


I wonder if I can convert my 27cm powerbox fin to a US box..I'm keen to see it..
forceten
forceten
1312 posts
1312 posts
24 Jan 2020 11:48pm
27 cm length, would be at or near the strength of a US box, using an adapter IMO make it even less sound
Mastbender
Mastbender
1972 posts
1972 posts
25 Jan 2020 5:31am
sboardcrazy said..

tbwonder said..
Sue, I have one of these, I will show you next time you are down at the lake



I wonder if I can convert my 27cm powerbox fin to a US box..I'm keen to see it..


That's would be the wrong direction for a basic conversion box, you can easily go the other direction though, US to Powerbox.
You'd have to do some serious grinding and reshaping of the powerbox base, to go into a US box, and then you wouldn't even need the conversion box.
I've been thinking about getting a trim base conversion box, and adapting a US base fin into it, which would require cutting, drilling, and then adding epoxy to fill the voids w/in the trim conversion box, after installing the altered US base fin. Doable, but not easy, those are designed for Multi-conic base fins only, not US base fins.
I've got an older trim box board that's perfect for very light wind conditions in the ocean, but finding a trim base fin designed for ocean use is basically impossible now days. Plenty of trim base racing fins still available though, but I don't want or need one of those kelp grabbers, as well as weed fins, but don't want one of those either.
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