Contact   Imprint   Advertising   Guidelines

first build give me your opinions

here you can exchange your experience and datas about your home build boards


plummet
Very Frequent Poster
Posts: 4824
Joined: Sat Aug 29, 2009 11:25 pm
Kiting since: 33
Local Beach: God created the naki so the hardcore people would have a place to live.
Favorite Beaches: Shhhhhhhhhhhhh...........
Style: Always searching for flow!
Gear: If you take 3.1415 from opinion. You get onion!
Brand Affiliation: What do yo call an Alligator in a vest? ............... An Investigator.

first build give me your opinions

Postby plummet » Sun Feb 26, 2012 12:03 am

ok men. I'm about to embarke on my first twin tip build. been building longboard skateboards and landboards for years. so..... building skills are sweet.

I want to build a lightish wind board for chop swell and wave. Been thinking for a while and this is my idea. I want to stay upwind around 10 knots, really main wind this baord would be used in is 12-15 knots (using my 15m speed 3) but still be able to hold a line when the wind/chop builds to 20 knots.

So i've decided i need a wide, not super long board. but the tips need to be flexible to so they can bend when the wind is up sort of auto rocker. So hopefully it will hold a good like in light wind but not be too harsh through the chop.

138x47 rocker 1.5" with 5-6mm concave flatening out at the edges to have the last 50mm of so with no concave.

I intend to use 2.6mm bamboo as the base layer. then adding a couple more shorter layers tapering in to reach a max thickness of 8mm at the center and 2.6mm at the tips.

I'm still contemplating the glass lay up. at this stage i'm thinking 300gm double bias on the bottom with a stringer uni directional of carbon about 300mm wide. On the top i'm considering a layer of triaxle glass.

What do you guys think? am i on the right track?

User avatar
Laughingman
Very Frequent Poster
Posts: 2600
Joined: Mon Mar 16, 2009 4:35 pm
Kiting since: 2009
Local Beach: Kp, MBay, Rond
Favorite Beaches: Kp, MBay, Rond, Long Bay, Cayo Guillermo
Gear: Ocean Rodeo Gen4 Flites 10m, 12m and 14.5m, 2016 Prodigy 5m and 7m
Xeon Laluz, 2010 OR Mako Wide 150, Mako Classic 150, Jellyfish Custom surf board quad fin 6'
Engine Custom Harness and sliding hook setup
Location: Southwestern Ontario

Re: first build give me your opinions

Postby Laughingman » Sun Feb 26, 2012 2:05 am

I'm no board builder....yet, but I bet your weight would help with any advice the actual board builders could share. Just sayin....

BWD
Very Frequent Poster
Posts: 2812
Joined: Thu Jun 05, 2003 3:37 am

Re: first build give me your opinions

Postby BWD » Sun Feb 26, 2012 5:38 am

You might want to go a little narrower unless you are big.
Otherwise it sounds ok if the bamboo you use is good stuff.
Not sure you need any carbon on it though, especially on the bottom.
I'd try something like what you said without carbon.
Ride it and if it is too wiggly maybe add some carbon strips (narrower than 300mm) to the top, rather than the bottom, capped by a light glass layer just a few cm wider than the strips -that would stiffen it right up. :idea:

plummet
Very Frequent Poster
Posts: 4824
Joined: Sat Aug 29, 2009 11:25 pm
Kiting since: 33
Local Beach: God created the naki so the hardcore people would have a place to live.
Favorite Beaches: Shhhhhhhhhhhhh...........
Style: Always searching for flow!
Gear: If you take 3.1415 from opinion. You get onion!
Brand Affiliation: What do yo call an Alligator in a vest? ............... An Investigator.

Re: first build give me your opinions

Postby plummet » Sun Feb 26, 2012 6:22 am

I'm 82 pies (kg).

yeah not sure if carbon is required or not?.... It works best under extension. so the most efficient use of the carbon is on the bottom.

I would slap a layer of triaxial glass on the bottom. but i don't want the uni full width. thus the idea of the thinner carbon stringer. My theory goes that it will stiffen it up with but leave the tips and edges to flex under power and chop.

Note this will primarily be used sub 16 knots. So it needs to get up and plane really well.

User avatar
edt
Very Frequent Poster
Posts: 4195
Joined: Fri Jul 16, 2010 6:27 am
Kiting since: 2010
Local Beach: ford lake Michigan
Style: boots only
Gear: fuel envy wainman pansh naish jaime cwb

Re: first build give me your opinions

Postby edt » Sun Feb 26, 2012 3:14 pm

I love everything about this board do it. I made so many mistakes my first few boards, but it seems like you got it all figured out.

BWD
Very Frequent Poster
Posts: 2812
Joined: Thu Jun 05, 2003 3:37 am

Re: first build give me your opinions

Postby BWD » Sun Feb 26, 2012 6:05 pm

Normally carbon goes on top to stiffen the board and increase reflex.
Sounds weird but it works.
On the bottom it can make a board too stiff and vulnerable to point loading unless there is a lot of it and the core is rather thin (a la brokite.com for example)
Leaving the carbon on the deck still lets the board flex, avoids the carbon hitting rocks, and still increases reflex.
I'm your weight and would stick to 45 or less width, especially at 135+ length.
Really wide and you might need to offset the straps to heelside, which might not suit the riding you want to do -but that is up to your preference of course....
In fact it's all what your preference is, so good luck and enjoy.
And show some pictures!

plummet
Very Frequent Poster
Posts: 4824
Joined: Sat Aug 29, 2009 11:25 pm
Kiting since: 33
Local Beach: God created the naki so the hardcore people would have a place to live.
Favorite Beaches: Shhhhhhhhhhhhh...........
Style: Always searching for flow!
Gear: If you take 3.1415 from opinion. You get onion!
Brand Affiliation: What do yo call an Alligator in a vest? ............... An Investigator.

Re: first build give me your opinions

Postby plummet » Sun Feb 26, 2012 7:25 pm

ok i'll take that advice. run 45 width, put triaxle on the bottom and top. then stiffen with a stringer of carbon on the top if required after testing.

User avatar
edt
Very Frequent Poster
Posts: 4195
Joined: Fri Jul 16, 2010 6:27 am
Kiting since: 2010
Local Beach: ford lake Michigan
Style: boots only
Gear: fuel envy wainman pansh naish jaime cwb

Re: first build give me your opinions

Postby edt » Mon Feb 27, 2012 12:11 am

dont cut it to 45 you'll regret it. What are raceboards, 100cm? go with that 47, if you don't like it, get out your saw and VZZZZZM and finish it again. Can't make it wider, you know.

plummet
Very Frequent Poster
Posts: 4824
Joined: Sat Aug 29, 2009 11:25 pm
Kiting since: 33
Local Beach: God created the naki so the hardcore people would have a place to live.
Favorite Beaches: Shhhhhhhhhhhhh...........
Style: Always searching for flow!
Gear: If you take 3.1415 from opinion. You get onion!
Brand Affiliation: What do yo call an Alligator in a vest? ............... An Investigator.

Re: first build give me your opinions

Postby plummet » Mon Feb 27, 2012 12:35 am

edt wrote:dont cut it to 45 you'll regret it. What are raceboards, 100cm? go with that 47, if you don't like it, get out your saw and VZZZZZM and finish it again. Can't make it wider, you know.



true i can always go thinner. I'm not bothering with rails so i can trim to suit if required.

longwhitecloud
Very Frequent Poster
Posts: 1950
Joined: Fri Sep 11, 2009 3:15 am
Kiting since: 0
Style: Fast, anti lawnmower.
Gear: Wipika Freeair 8.5 2 liner and Picklefork.
Brand Affiliation: iansmusic.com - free music for your kite videos

Re: first build give me your opinions

Postby longwhitecloud » Mon Feb 27, 2012 1:38 am

max 42 wide or toeside riding and general trickery = less control also board slap landings with super wide boards are uncomfortable

32 mm rocker - lightwind twintip works off flat rocker most effectively - raceboards publish volume so comparing twiptip and raceboard widths is not a good idea

bamboo sound interesting - not sure about your tip and centre thickness - sounds on the low side a little bit not 100% sure - i don't know bamboo



(i have shaped and layed up and riden about 40 -50 completely different board designs and hundreds of similar ones, i am always up for learning something new tho..)

"Normally carbon goes on top to stiffen the board and increase reflex. " Carbon is a lot better under tension than compression (ie more effective for strength on base, I would keep top and base layers exactly the same tho and both the top and base can come into contact with similar stresses at some stage. Putting carbon strips between the footstraps to stiffen up this area is asking for a world of trouble as this end point is exaclty where it will snap.

I just chucked out a van load of board making stuff - this made me feel inspired for the first time is years - mind you even the thought of epoxy make me feel sick lol


Return to “Board Builders”

Who is online

Users browsing this forum: No registered users and 3 guests