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Thursday, 11 October 2018

Asymmetric Surfboard Part 2

Draw in asymmetric Planshape, 2600 x 528 x 100 deep, about 8'6" x 20.8"

Cut in side view so its 50mm thick at the ends.

Cut in end view so its 50mm thick at the sides.

3d print at 1:20 scale, including scale fins.

2 of the resulting model surfboards, seen with the fin at this end.

Top view, shown with fins at the bottom.  It is the same surfboard just rotated 180 degrees and with the fin in the other end.

View from below.

Side views

This gives an indication of scale, the models are about 1:20 full scale or 130mm long.
Hi, I posted about my assymmetric surfboard a few months ago, and since then have done some work on the proposal of "taking the idea further, making a double ended Asym with one end that suits a goofy and the other end that suits a natural footer". 

So the idea is shown above in model form.  From the trace I had made of my modded Trigger Brothers board, I cadded it up and then printed a 1:20 scale model.

As discussed here in Swellnet, the theory of the Asyms is that surfers can turn the side of the board their toes are on sharper and more quickly than the side of the board their heels are on.  And that side varies, depending if you surf right foot forward (goofy) or left foot forward (natural).  So making the toe side of the board longer at the back than the heal side is fine, and can work to make boards more manoeverable, but a board made like this that suits a goofy won't suit a natural / regular footer and vice versa.

So here is my crack at a solution, an Asym double ender. The front of the board is compromised, it wouldn't have the same lift or rocker as a standard board, but I think ok surfers would be able to cope. If I want to go further and actually make the thing as a surfboard, there are a few steps I could take.

* Bring my board and the models to a surfboardmaker and  get them to make one. This wouldn't teach me much!
* Download Akushaper and put in the design, something like I already have done, then go to someone who knows what they're doing to tweak it.

Till next time!

Steve Nurse

 

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