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BRX Oval 3.0

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sabraxas
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BRX Oval 3.0

Postby sabraxas » Tue Nov 01, 2016 11:01 pm

Here are some pics of my last project

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plummet
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Re: BRX Oval 3.0

Postby plummet » Wed Nov 02, 2016 9:09 am

Looking schmoo!

plummet
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Re: BRX Oval 3.0

Postby plummet » Wed Nov 02, 2016 11:05 am

Though I would suggest you epoxy a quad fin option at the back and at least 2 fins upfront.

1 center fin has limitations.

direnc
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Re: BRX Oval 3.0

Postby direnc » Wed Nov 02, 2016 11:21 am

Wow! Looks great!
Could you please share dimensions and material used? Also, amount of rocker/concave and springback, and what is the edge/tip material?

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Kamikuza
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Re: BRX Oval 3.0

Postby Kamikuza » Wed Nov 02, 2016 1:13 pm

Looks great! What are the dimensions?
plummet wrote:Though I would suggest you epoxy a quad fin option at the back and at least 2 fins upfront.

1 center fin has limitations.
You're the only person in the world who thinks more than one fin doesn't ruin the board :wink:

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sabraxas
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Re: BRX Oval 3.0

Postby sabraxas » Wed Nov 02, 2016 4:49 pm

Thanks for your comments.
This is the third board i build with this shape.
I love it and now i decided to go full carbon instead of fiber glass.

Plummet, your advice is welcome, but i ve been riding this board with only one fin the past four years.
I guess 5 fins are too much drag. Look at the turbulence in the fin at the following photo and multiply it by 5. This board is VERY fast, but it is still controlable. You can turn and carve it hard on its edges, and you will feel it loose when riding flat. I love that feeling in transitions. When you go downwind flat, it is very controllable and very fast.

Obviously it is inspired in the OR Mako, but it is not the same. It has a 20 mm concave in a C shape. The concave in Mako is Omega shaped, more forgiven in landing jumps, but less radical in edging hard. I began to build my first prototype in times that OR didnt use wood in their Makos.

The board is 152 x 40 cms
It has 45 mm of roker (25 mm of flat roker + 20 mm of concave)
The rails are 6mm fiberglass rods and at the tips it has micro ballons, epoxi and chop.
I do not have the patience to cut and paste little tiny pieces of kiri wood, i like to work with sheets.
In this case, two sheets of 3mm mapple plywood plus a spinal core. The board thickness is 9mm.
I think there are two conceptions in building a board. A very lightweight and fragile core, with a strong and heavy lamination; and a strong and heavyweight core with lightweight lamination.
I choosed the second way.

Weight? My first Oval was 4kgs naked.
The second was 3,6 kgs
I hope this carbon version will weight no much more than 3 kgs naked.

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Last edited by sabraxas on Wed Nov 02, 2016 11:18 pm, edited 1 time in total.

plummet
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Re: BRX Oval 3.0

Postby plummet » Wed Nov 02, 2016 6:44 pm

Let me qualify my statement about the fins.

If you are riding chop like in the photo's, yes I agree center 1 fin will work until you ride super powered and load up to jump big. Then 1 center fin limits the amount of power you can load up before you loose the edge.

If you ride waves bigger than head high one center fin does not cut it at all for holding a powered bottom curve on a lumpy face.

If not don't doing both of those things. Then one center fin will be sweet.

My recommendation is to epoxy in a quad set up so you feel inspired to try my idea you can. If you find yourself in awesome waves I highly recommend it.

Here's my current fin set up on my board.

I have tried center fin only and I have ridden the 150 mako with center fin only back to back against my board. What I found was as stated about. The center fin mako wasn't able to hold as much power when super powered, it was far, far, far worse on the wave face. Infact I would not even consider the mako with one center fin on the bigger wave faces the I easily ride with my board on.
20150419_064906_resized.jpg

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sabraxas
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Re: BRX Oval 3.0

Postby sabraxas » Wed Nov 02, 2016 9:27 pm

Thanks for the explanation, Plummet.

I dont surf waves but eventually once a year. I live in a place with choppy water. And the concave cuts the chop like butter.

I can say that with the C concave shape of my board, when loading power for jumping high, it will explode the muscles of your legs before loosing edge. Even with one fin the board does not loose edge.

But it is true, i would love to surf medium waves with it. And i will consider to add pair of holes for a thruster fin configuration in your honour.
Last edited by sabraxas on Thu Nov 03, 2016 12:03 am, edited 1 time in total.

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rynhardt
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Re: BRX Oval 3.0

Postby rynhardt » Wed Nov 02, 2016 9:40 pm

Nice looking board, man!
I'm also a fan of the single centre fin, except I prefer it even closer to the footpads.

plummet
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Brand Affiliation: What do yo call an Alligator in a vest? ............... An Investigator.

Re: BRX Oval 3.0

Postby plummet » Wed Nov 02, 2016 9:56 pm

sabraxas wrote:Thanks for the explanation, Plummet.

I dont surf waves but eventually once a year. I live in a place with choppy water. And the concave cuts the chop like butter.

I can say that with the C concave shape of my board, when loading power for jumping high, it will explode the muscles of your legs before loosing edge. Even with one fin the board do not loose edge.

But it is true, i would love to surf medium waves with it. And i will consider to add pair of holes for a thruster fin configuration in your honour.

Sweet. If you epoxy in the holes just in case, you dont even need to drill them. But one day as you say, you may find yourself in the position of wanting to try it. Then its super easy to drill and trial.

And or drill the hell out of your old board for various fin placement combo's. Try them out and set the ones into your new board that you like.


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