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Messages - kiwi

Pages: [1] 2 3 4
1
Foil SUP / Re: Foil Setup Questions
« on: July 24, 2019, 05:46:04 PM »
I weigh the same as you and run an axis setup with 750mm mast, 920 or 820 wing and 400 back wing.
gofoil equivelant is probably 29,5 mast, Iwa and Kai back wing?

2
Random / Re: CNC Router for less than $200
« on: June 28, 2019, 11:59:48 PM »
I spent $1200 nzd on building a cnc big enough to cut wings, amazing tool and the accuracy is just incredible, about to sell it off to pay for a bigger one  ::) , can't quite do a big wing in one piece.

3
Foil SUP / Re: DIY SUP Foil Wings- Oh geez.
« on: June 26, 2019, 07:25:53 PM »
Has anyone got any info on the dims of the new GL GoFoil wings? Have been inspired to start laminating a plywood high aspect wing to try and fit onto my Gong fuse. The blank is 110cm x 20cm. The GL wings look very flat from the pictures I have seen. Would like to get a better idea of the wings dims including the angle of attack? Everything so far has been eyeballed!
Thanks in advance :)


My next project is a wing like these new high aspect ones. I'm going for a metre span with a chord of 160mm using an NACA 4416 profile, I considered a thinner profile but since its allready so much smaller in the chord it will only be 26mm thick which is allready much thinner than most wings. I'm going with 2 degrees AOA with washout of 2 degrees over the span so that the tips are at 0 degrees.


Looks very promising Kiwi, does it fit on the Axis fuselage?

Sure does

4
Foil SUP / Re: DIY SUP Foil Wings- Oh geez.
« on: June 26, 2019, 01:15:53 AM »
Has anyone got any info on the dims of the new GL GoFoil wings? Have been inspired to start laminating a plywood high aspect wing to try and fit onto my Gong fuse. The blank is 110cm x 20cm. The GL wings look very flat from the pictures I have seen. Would like to get a better idea of the wings dims including the angle of attack? Everything so far has been eyeballed!
Thanks in advance :)


My next project is a wing like these new high aspect ones. I'm going for a metre span with a chord of 160mm using an NACA 4416 profile, I considered a thinner profile but since its allready so much smaller in the chord it will only be 26mm thick which is allready much thinner than most wings. I'm going with 2 degrees AOA with washout of 2 degrees over the span so that the tips are at 0 degrees.

5
Foil SUP / Re: Divinycell PVC Foam Block
« on: May 16, 2019, 01:19:52 PM »
Heres the plan for my next board, sure it takes away the ease of mast position change but tuttle cant move either, there could be large adjustment if u put another set 25-50mm behind or in front etc..

6
Foil SUP / Re: Diy foil nz
« on: April 28, 2019, 01:42:19 AM »
Been a while since ive posted, plenty of shit has happened
The original foil has been put on hold due to my disinterest in heavy, ugly foil shapes
After discovering I had been missing out on a whole lot of lift in my original wings I decided to start fresh and got to work on the wing below which has a span of 800mm and a max chord of 200mm. My new design consisted of a whole lot of weight reduction in the form of a cedar carbon mast and glass tube fuz with wings still reasonably heavy until I get a hold of some more cedar. I designed my wing fuz join similar to axis and started cutting the new wing. After cutting the three parts (two wing tips and the main section) I realised I could have just designed it to be interchangeable with all the axis gear and I wouldn't have to wait until building an entire foil from the ground up to be able to use this new wing, my friend owns a few axis setups and was/is willing to let me use them to test my wing. After this realization I spent the next two weeks running around like a headless chicken trying to get it finished in time for the school holidays so I could test it in the swell and dont worry I did.

In between my last post and now I also built a prone foil board out of an old windsurfer which has been good apart from the fact is weighs a kilo more after a session than what it began at. So I also patched that up and gave it a new coat of paint before the holidays too, plan is to build a fresh one from scratch and make it indestructible over the next year.

During the holidays the swell was pretty average and was about 0.3m of windy blown out shit with no gut behind it whatsoever, probably perfect for sup foiling but I need some more power in the wave for my little wing on my prone board. The river creek thing where we stayed over the holidays was perfect for pumping off with the axis 1020 wing.



Next in the works is the above stated prone foil board, probably around 5 foot 40 litres and a high aspect pump wing/downwind because everyone seems to be heading towards high aspect.

7
Foil SUP / Re: flat water start on a hand made foil
« on: March 02, 2019, 11:15:51 PM »
Hold the presses! We may have a solution for my needs. Apparently Alex is already onto the idea of a higher aspect wing for my go foil. Not sure if they are in production yet. Looks mighty similar to the signature that I like. The downside is itís probably more than $50 💰

I'm liking the look of that one, my next wing after the current one is definitely a high aspect one. Those signature albatross foils rip. I also think its the same reason the horue foils have a lot of pump in them although ive never seen anyone apart from the owner ride one in a video

8
Foil SUP / Re: Foil Share File Share
« on: February 08, 2019, 10:59:41 PM »
Not technically a 3d file but thought it would be a handy place to leave this.

Feel free to add to it.

https://docs.google.com/spreadsheets/d/17xbTGEWSVeRhnYb_4vz_Gmby8UnrDys7Q1iB-6rC6F4/edit?usp=sharing

9
Foil SUP / Re: Diy foil nz
« on: January 16, 2019, 01:31:56 PM »
After building two front wings, 3 tail wings and a rudder I have finally found the issue I was talking about with weirdness in fusion 360. Using loft instead of sweep.
By using loft I was taking the profiles to a point which meant that I was losing out on shape and they profile was basically symmetrical at halfway between the tip and the root.
You can see in the photo the amount of volume the wing is missing out on.

Ah well

10
Foil SUP / Re: Ghetto Foil
« on: November 09, 2018, 12:33:13 AM »
Oh no the ghetto foil is no longer the world's shortest board
Kai's new whip is a 2'8"

11
Foil SUP / Re: Cowboy Foil Experiment Thread
« on: November 06, 2018, 11:37:02 PM »
That looks heaps better scb

I think the only reason the fuz wing join on naish and neilpryde can afford to be so small is of how they are molded and basically locked together
My first wing join was 60mm wide and it worked plenty good for a bit until I really started to turn it but it was probably a combination of things really.
with that amount of carbon it should fly sweet as

12
Foil SUP / Re: Diy foil nz
« on: November 05, 2018, 09:26:51 PM »
Got quite a bit done since last post.
I made a new stab, this one has a bit more area just interested to see how that affects things.
Coated everything in durepox and started sanding today but its still a tad gummy. (the lighter colour is what it looks like sanded)
Also ive got a 4'7" prone board hacked up from another board going on in the background.

13
Foil SUP / Re: Diy foil nz
« on: October 29, 2018, 01:29:14 AM »
After I posted I thought of laminating a few thinner layers. Hit send too soon.

Those donít look 40mm (1.5Ē for US) thick in the pics. Thatís thicker than I thought from looking at it.

Yes, I have a wood core in my fuse so the inserts will be seated (epoxied into) wood. After pulling it out of the bag tonight Iím thinking of adding a slightly bigger plate like you have under the fuse. I feel like I have the fuse sorted now but Iím concerned that I could break my wing if I donít reinforce it due to the lateral forces if the bolts are only 30-40mm apart. Even 10-15mm on each side would give way better leverage.

Yeah I've found that getting the connection between the front wing and your feet as stiff as possible is very handy when it comes to turning or even controlling it, the original fuz wing connection I had was fine for my little wing but the bit one yanks a bit harder on the mast and you can definitely feel it. Can you upload some picutres of your fuz to wing connection I need to get my head round it.

Yeah my wing is definitely 40mm at it's thickest point, I am starting to wonder about using fusion to model because it seems like the shape tapers off very quickly and becomes thinner much quicker than youd think, from looking at other foil brands they don't tend to do this. Maybe it's just the wing outline causing it or maybe designers using multiple stations with profiles that get thicker further down the wing but I'll do some more research into it first.


14
Foil SUP / Re: Diy foil nz
« on: October 28, 2018, 11:57:21 AM »
This is looking great.

I finally got mine back in the bag and fixed the front of my fuse.

I like your wider wing mount. Mine is top mounted too now but only a couple of inches wide. Iím concerned about the stress on my foam and glass wing. Going to beef it up but Iíve got about the same mount size as the Armstrong wings so hoping itís solid enough. Probably need to build a plywood wing next actually.

Container, how did you get the bend in yours, did you put relief cuts in the bottom and then fill them? Also, how thick are yíallís wings?

Final question. Iím looking for stainless threaded inserts. Should I use helicoils instead? Which do you think is stronger? I just figured the screw in threaded inserts were the best I could do for mounting in wood.

This new wing is a NACA 4416 so at 250mm chord thats 40mm thick.
If you are threading into solid glass or carbon I would go with helicoils but it sounds like threaded inserts might be better for wood.

Container might have laminated several layers of a smaller thickness across his mold but I'm not totally sure, relief cuts don't really make any sense for strength.

15
Foil SUP / Re: Diy foil nz
« on: October 27, 2018, 11:54:47 AM »
A few mods over the past couple weeks.
I routed down the wing where the fuz attaches so it doesn't protrude and the fuz is now recessed into and sits nice and flush, way less drag.
Also layed some reinforcement around the mast attachment on the fuz as I can still feel the new wing trying to tear itself free when turning, this should make it super solid and stable.

Next plans are to bog everything up and get a coat of durapox on it because epoxy isn't the best when it comes to drag.

Pages: [1] 2 3 4

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