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My next board design.

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rynhardt
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Local Beach: Leeupan
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Location: Johannesburg, South Africa

Re: My next board design.

Postby rynhardt » Mon Feb 12, 2018 8:40 pm

My personal opinion is you can get the same pivotal turning by simply moving the fin closer to your foot strap. The centre of my fin is about 10cm behind the centre of the footpad.
Then again, I don't really ride waves like plummet, and I prefer a loose feel.
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fluidity
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Posts: 40
Joined: Sat Mar 19, 2016 11:20 pm
Kiting since: 2016
Local Beach: Ngati Toa, Plimmerton, Titahi Bay, Waikanae, Petone, Seatoun, Lyall Bay, Eastbourne, Lake Wairarapa
Style: Wave, jump
Gear: Old Flexfoil 9, Switch Element V4 11m, Ocean Rodeo Prodigy 7m 2014, Nitro14m v5, Nitro9m v6 12mSwitch Legacy2
DIY CAD ultra-concave wave twintips with my own fin designs. Easy upwind, awesome carving.

Re: My next board design.

Postby fluidity » Tue Feb 13, 2018 9:26 am

plummet wrote:
Mon Feb 12, 2018 5:41 pm
It doesn't need to be so assymetric that you cant ride it backwards!
My mutant is fantastic backwards. The trick is the binding location. A little bit offset, but not too much. Also if you move the rear fins forward a touch closer to the binding that gives to a tighter turning radius in the surf. It becomes closer to a surfboard feel.
I havent actually used nutserts on a board. I waterjet cut my inserts out.
Your mutant looks good plummet.
I've considered setting up one of my boards as mutant because I'm a lot better at jumping goofy than I am at jumping regular. Unless I set it for regular riding though, it's only going to discourage me from improving my regular jumping!

fluidity
Rare Poster
Posts: 40
Joined: Sat Mar 19, 2016 11:20 pm
Kiting since: 2016
Local Beach: Ngati Toa, Plimmerton, Titahi Bay, Waikanae, Petone, Seatoun, Lyall Bay, Eastbourne, Lake Wairarapa
Style: Wave, jump
Gear: Old Flexfoil 9, Switch Element V4 11m, Ocean Rodeo Prodigy 7m 2014, Nitro14m v5, Nitro9m v6 12mSwitch Legacy2
DIY CAD ultra-concave wave twintips with my own fin designs. Easy upwind, awesome carving.

Re: My next board design.

Postby fluidity » Tue Feb 13, 2018 9:37 am

rynhardt wrote:
Mon Feb 12, 2018 8:40 pm
My personal opinion is you can get the same pivotal turning by simply moving the fin closer to your foot strap. The centre of my fin is about 10cm behind the centre of the footpad.
Then again, I don't really ride waves like plummet, and I prefer a loose feel.
I know what you mean rynhardt, at first I was using really big fins on a bad board I was given then I transferred them on to my second design board. They were fine but when I tried my second build of the second design without fins I was amazed at that loose feeling, how I could spin it super fast to any angle I wanted on the waves. I could still cut up wind nicely because of the big concave but I found the biggest advantage of the fins for a high concave board was to let it grip better at an angle that would lift the front more to pop over waves. With the design in this thread I'll have to try it finless too, I've got lots of rocker and concave so I think fins won't add much to it's handling. If I need them though... I moulded a bunch of polyurethane ones from a mould off some I 3D printed so I can sort that too :)

plummet
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Plummet hydrofoil and mutant
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Re: My next board design.

Postby plummet » Tue Feb 13, 2018 10:49 am

rynhardt wrote:
Mon Feb 12, 2018 8:40 pm
My personal opinion is you can get the same pivotal turning by simply moving the fin closer to your foot strap. The centre of my fin is about 10cm behind the centre of the footpad.
Then again, I don't really ride waves like plummet, and I prefer a loose feel.
I agree for small waves it will be sweet. But the further back the rear foot the tighter radius you can carve.

Center fin isn't enough doing a hard bottom turn on a fast lumpty big wave. It can pop out of the water and you can loose your edge.

Also offset footstance allows for less nosedive on the steep stuff. Again this is all relevant to bigger surfer. Head high or smaller who cares.
fluidity wrote:
plummet wrote:
Mon Feb 12, 2018 5:41 pm
It doesn't need to be so assymetric that you cant ride it backwards!
My mutant is fantastic backwards. The trick is the binding location. A little bit offset, but not too much. Also if you move the rear fins forward a touch closer to the binding that gives to a tighter turning radius in the surf. It becomes closer to a surfboard feel.
I havent actually used nutserts on a board. I waterjet cut my inserts out.
Your mutant looks good plummet.
I've considered setting up one of my boards as mutant because I'm a lot better at jumping goofy than I am at jumping regular. Unless I set it for regular riding though, it's only going to discourage me from improving my regular jumping!
Why? I aim goofy ride out through the surf natural stance backwards and do 90% of my jumping off wave lips riding my mutant backward on my wrong tack.... Then when I ride back to the beach I'm goofy for riding down the line.


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