Sheldrake cardboard surfboard build

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Sheldrake cardboard surfboard build

Postby tynemouthmatt » Wed Apr 03, 2013 6:24 pm

Late last year seasofcheese had a Sheldrake cardboard surfboard kit for sale...which I bought.

Apparently the 6'4" fish model and was originally destined for the V&A museum.

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Kit consisted of about 15 sheets of pre cut, numbered pieces & no instructions.

The build guide video on the Sheldrake site seemed a little vague at first, but soon the kit began to make sense.

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Started off by gluing up the 10 stringers, then it was just a case of slotting in the diagonal supports. It was a bit tricky at first.

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Once complete it is surprisingly solid, i'm pretty sure it would take my weight but don't want to risk it. Turns out this is the 5'10" fish not the 6'4", which is the one I would have chosen if I'd had a choice...so all good there.

I've read the couple of build threads on Sheldrake builds and everyone has there own method of glassing. Epoxy is the obvious choice but its hard to get a good clear finish.

While I will surf this , I bought it more as a wall hanger...its a great piece of design. For this reason i'm going to use poly resin so I can get a good clear polish finish on it.

To laminate I will pre preg the cloth and then roll it on. Still unsure on glass schedule.
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Re: Sheldrake cardboard surfboard build

Postby VillageIdiot » Thu Apr 04, 2013 7:09 pm

Matt, how are you going to stop the cloth from sagging between the supports ?
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Fri Apr 05, 2013 10:58 am

VillageIdiot wrote:Matt, how are you going to stop the cloth from sagging between the supports ?


Plan to pre lam the cloth, then roll it onto board. First layer won't be lapped, taped off at the rail apex.
Once its rolled on and relief cuts are made i'm going to stretch the cloth (with the help of a willing assistant), pulling it taught across the surface. Thought about weighting the cloth at the sides somehow to keep the tension. Does that make any sense?..it does in my head.

Once the initial layer is done both sides I can them lam as normal.

Going for 4 x 4oz deck, 3 x 4oz bottom.
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Re: Sheldrake cardboard surfboard build

Postby baggins » Fri Apr 05, 2013 11:05 am

Looks like a piece of art already

will those holes show through the layers of cloth Matt? might add something different to the look
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Fri Apr 05, 2013 11:38 am

baggins wrote:Looks like a piece of art already

will those holes show through the layers of cloth Matt? might add something different to the look


I have it hung up on the wall at the moment, its tempting to just leave it as it looks great. But a surfboard should really be surfed.

You should be able to see the internal structure, going with poly resin for a clearer lam (hopefully)
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Re: Sheldrake cardboard surfboard build

Postby danny1 » Sat Apr 06, 2013 6:05 am

Mate idvreally like to come and view this - are you around late next week?
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Sat Apr 06, 2013 7:56 am

Your more than welcome Danny. Around all next week, do you have my number?
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Re: Sheldrake cardboard surfboard build

Postby blue_pig » Sat Apr 06, 2013 9:59 am

Be cool to see how you overcome the sag. Epoxy might give you a longer work time to tension it up though?
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Re: Sheldrake cardboard surfboard build

Postby Poo Stance » Sat Apr 06, 2013 11:01 am

There was one of these in the Brit Surf Museum in Barny when I went.

Image

The slight sag between the holes was something i noticed. Seems tricky to get the rails right.
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Re: Sheldrake cardboard surfboard build

Postby coxie » Sat Apr 06, 2013 7:42 pm

Have you thought about uv curing the first layers it will give you as long as you like, all morning if need be to get everything perfectly tight and all unsightly drips on the internal beams cleaned up before sticking it in the sun.
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Sat Apr 06, 2013 7:47 pm

coxie wrote:Have you thought about uv curing the first layers it will give you as long as you like, all morning if need be to get everything perfectly tight and all unsightly drips on the internal beams cleaned up before sticking it in the sun.


Yeah I have, hoping to avoid drips by using the pre lam method I tried to describe above. Should be starting the lam on mon or tues.

Only issue with using UV in my garage is the roof is full of holes so may get random patches curing!
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Tue Apr 09, 2013 5:15 pm

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Taped up along rail apex in prep for laminating tomorrow. Taped up with 3 layers of decent masking tape to create a strong edge to stretch the glass over. Hopefully this should stop any sag between the rail pieces.

Photos of the lam tomorrow
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Re: Sheldrake cardboard surfboard build

Postby Roy Stuart » Tue Apr 09, 2013 9:11 pm

Presumably these are not meant to be ridden?
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Re: Sheldrake cardboard surfboard build

Postby mountain man » Wed Apr 10, 2013 8:02 am

Roy Stuart wrote:Presumably these are not meant to be ridden?



Hmmm just like someone else's board I could mention....
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Wed Apr 10, 2013 8:04 am

Roy Stuart wrote:Presumably these are not meant to be ridden?


Apparently they are, couple of videos on their site http://www.sheldrake.net/cardboards/candy.html

I'm going to ride this when its small & clean, but mainly building it as a wall hanger
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Wed Apr 10, 2013 3:45 pm

Lam went kind of to plan, pre pregnating the cloth worked well...probably could of taken more resin out of it.

Tape down to the rack is to keep the tension, which seems to work for the most part. A bit tricky around fish tail.

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Re: Sheldrake cardboard surfboard build

Postby VillageIdiot » Thu Apr 11, 2013 6:17 pm

The best of British luck Matt.
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Re: Sheldrake cardboard surfboard build

Postby baggins » Fri Apr 12, 2013 8:50 am

I bet its nice and light Matt?

reckon its 100% waterproof? I suppose testing it in the water is the only way to find out?

Could the cardboard itself have been sprayed with any sort of liquid to harden to increase its strength?

Looks really cool I think - hope she flys for yer!
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Sat Apr 13, 2013 1:19 pm

Hmmmm cut lap wasn't the best of ideas, pulling the tape up caused the glass to separate from the cardboard. Going to try stick it down by squeezying resin through the many holes in the cloth.

All laminating rules going out the window on this one.
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Re: Sheldrake cardboard surfboard build

Postby waxer00 » Fri Apr 19, 2013 7:28 pm

it`s gawn quiet .......whats happened?....go on, tell yur uncle waxy
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Re: Sheldrake cardboard surfboard build

Postby buttholesurfer » Fri Apr 19, 2013 7:55 pm

Looks good Matt...must admit your a braver man than me with this project. Must admit this forum had gone abit shy with board build projects.
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Fri Apr 19, 2013 8:23 pm

Lam was annoying me a little, lots of big air bubbles on the laps. This is due to the sag between the rail pieces.

I want to make a good job of this, or at least make it look good. So i've left it for a little bit so I don't too annoyed with it.

Been working on some fins and my flexspoon plug instead.

Will be back onto this next week though.
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Fri Apr 19, 2013 8:25 pm

buttholesurfer wrote:Looks good Matt...must admit your a braver man than me with this project. Must admit this forum had gone abit shy with board build projects.


Yeah, its a shame really. I know there are plenty people building stuff...
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Mon Apr 22, 2013 11:29 am

Back on this project, otherwise i'll put it to one side and it could take an age to get finished.

Before completing the deck lam, I need to fill the air bubbles that formed under the lap of the bottom lam. These only occured where the cloth sagged between the rail sections. There is about 20 to cut out and fill, could have been alot worse!

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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Wed Apr 24, 2013 6:34 pm

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3 layers of 4oz down on the deck (all lapped), double hotcoated. feeling weighty now
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Re: Sheldrake cardboard surfboard build

Postby blue_pig » Tue May 07, 2013 9:09 pm

you might have seen this before :

http://www.grainsurf.com/forum/viewtopi ... =11&t=5146

a take on sheldrake and a way of getting around rail sag - just figure the board in the link would be good with wood rails and clear decks

hows the glassing going?
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Re: Sheldrake cardboard surfboard build

Postby tynemouthmatt » Wed May 08, 2013 8:38 am

Thanks for the link, nice build.

Board is ready to be sanded. But got a couple of orders to do so its gone to the back of the queue.
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Re: Sheldrake cardboard surfboard build

Postby defever » Mon May 20, 2013 12:28 pm

WOW, that's a nice link blue pig.

How is yours going Mr Tynemouth Matt?
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